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   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0006807) nitrogen compound metabolic process [383, 14 ][dist]
                     > (GO:0009308) cellular amine metabolic process [373, 0][dist]
                           > (GO:0006520) amino acid metabolic process [281, 49 ][dist]
                                 > (GO:0009072) aromatic amino acid family metabolic process [42, 31 ][dist]
                                       > (GO:0006568) tryptophan metabolic process [9, 0][dist]
                                             > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0006807) nitrogen compound metabolic process [383, 14 ][dist]
                     > (GO:0009308) cellular amine metabolic process [373, 0][dist]
                           > (GO:0006576) biogenic amine metabolic process [51, 2 ][dist]
                                 > (GO:0006586) indolalkylamine metabolic process [11, 0][dist]
                                       > (GO:0006568) tryptophan metabolic process [9, 0][dist]
                                             > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0009058) biosynthetic process [1080, 88 ][dist]
                     > (GO:0044249) cellular biosynthetic process [560, 2 ][dist]
                           > (GO:0009110) vitamin biosynthetic process [82, 0][dist]
                                 > (GO:0042364) water-soluble vitamin biosynthetic process [38, 0][dist]
                                       > (GO:0019363) pyridine nucleotide biosynthetic process [9, 2 ][dist]
                                             > (GO:0009435) NAD biosynthetic process [9, 7 ][dist]
                                                   > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                         > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0009058) biosynthetic process [1080, 88 ][dist]
                     > (GO:0044249) cellular biosynthetic process [560, 2 ][dist]
                           > (GO:0009165) nucleotide biosynthetic process [159, 2 ][dist]
                                 > (GO:0019363) pyridine nucleotide biosynthetic process [9, 2 ][dist]
                                       > (GO:0009435) NAD biosynthetic process [9, 7 ][dist]
                                             > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                   > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0009058) biosynthetic process [1080, 88 ][dist]
                     > (GO:0044249) cellular biosynthetic process [560, 2 ][dist]
                           > (GO:0051188) cofactor biosynthetic process [207, 0][dist]
                                 > (GO:0009108) coenzyme biosynthetic process [182, 0][dist]
                                       > (GO:0019363) pyridine nucleotide biosynthetic process [9, 2 ][dist]
                                             > (GO:0009435) NAD biosynthetic process [9, 7 ][dist]
                                                   > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                         > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0006082) organic acid metabolic process [513, 0][dist]
                           > (GO:0019752) carboxylic acid metabolic process [513, 19 ][dist]
                                 > (GO:0006520) amino acid metabolic process [281, 49 ][dist]
                                       > (GO:0009072) aromatic amino acid family metabolic process [42, 31 ][dist]
                                             > (GO:0006568) tryptophan metabolic process [9, 0][dist]
                                                   > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0006139) nucleobase, nucleoside, nucleotide and nucleic acid metabolic process [1807, 18 ][dist]
                           > (GO:0009117) nucleotide metabolic process [197, 12 ][dist]
                                 > (GO:0009165) nucleotide biosynthetic process [159, 2 ][dist]
                                       > (GO:0019363) pyridine nucleotide biosynthetic process [9, 2 ][dist]
                                             > (GO:0009435) NAD biosynthetic process [9, 7 ][dist]
                                                   > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                         > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0006139) nucleobase, nucleoside, nucleotide and nucleic acid metabolic process [1807, 18 ][dist]
                           > (GO:0009117) nucleotide metabolic process [197, 12 ][dist]
                                 > (GO:0019362) pyridine nucleotide metabolic process [13, 0][dist]
                                       > (GO:0006769) nicotinamide metabolic process [13, 0][dist]
                                             > (GO:0019674) NAD metabolic process [9, 0][dist]
                                                   > (GO:0009435) NAD biosynthetic process [9, 7 ][dist]
                                                         > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                               > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0006139) nucleobase, nucleoside, nucleotide and nucleic acid metabolic process [1807, 18 ][dist]
                           > (GO:0009117) nucleotide metabolic process [197, 12 ][dist]
                                 > (GO:0019362) pyridine nucleotide metabolic process [13, 0][dist]
                                       > (GO:0019363) pyridine nucleotide biosynthetic process [9, 2 ][dist]
                                             > (GO:0009435) NAD biosynthetic process [9, 7 ][dist]
                                                   > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                         > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0006139) nucleobase, nucleoside, nucleotide and nucleic acid metabolic process [1807, 18 ][dist]
                           > (GO:0009117) nucleotide metabolic process [197, 12 ][dist]
                                 > (GO:0019362) pyridine nucleotide metabolic process [13, 0][dist]
                                       > (GO:0046497) nicotinate nucleotide metabolic process [2, 0][dist]
                                             > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                   > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0006519) cellular amino acid and derivative metabolic process [312, 11 ][dist]
                           > (GO:0006520) amino acid metabolic process [281, 49 ][dist]
                                 > (GO:0009072) aromatic amino acid family metabolic process [42, 31 ][dist]
                                       > (GO:0006568) tryptophan metabolic process [9, 0][dist]
                                             > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0006519) cellular amino acid and derivative metabolic process [312, 11 ][dist]
                           > (GO:0006575) amino acid derivative metabolic process [65, 0][dist]
                                 > (GO:0006576) biogenic amine metabolic process [51, 2 ][dist]
                                       > (GO:0006586) indolalkylamine metabolic process [11, 0][dist]
                                             > (GO:0006568) tryptophan metabolic process [9, 0][dist]
                                                   > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0006725) cellular aromatic compound metabolic process [192, 12 ][dist]
                           > (GO:0009072) aromatic amino acid family metabolic process [42, 31 ][dist]
                                 > (GO:0006568) tryptophan metabolic process [9, 0][dist]
                                       > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0006725) cellular aromatic compound metabolic process [192, 12 ][dist]
                           > (GO:0042430) indole and derivative metabolic process [11, 0][dist]
                                 > (GO:0042434) indole derivative metabolic process [11, 0][dist]
                                       > (GO:0006586) indolalkylamine metabolic process [11, 0][dist]
                                             > (GO:0006568) tryptophan metabolic process [9, 0][dist]
                                                   > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0006766) vitamin metabolic process [88, 0][dist]
                           > (GO:0006767) water-soluble vitamin metabolic process [44, 0][dist]
                                 > (GO:0019362) pyridine nucleotide metabolic process [13, 0][dist]
                                       > (GO:0006769) nicotinamide metabolic process [13, 0][dist]
                                             > (GO:0019674) NAD metabolic process [9, 0][dist]
                                                   > (GO:0009435) NAD biosynthetic process [9, 7 ][dist]
                                                         > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                               > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0006766) vitamin metabolic process [88, 0][dist]
                           > (GO:0006767) water-soluble vitamin metabolic process [44, 0][dist]
                                 > (GO:0019362) pyridine nucleotide metabolic process [13, 0][dist]
                                       > (GO:0019363) pyridine nucleotide biosynthetic process [9, 2 ][dist]
                                             > (GO:0009435) NAD biosynthetic process [9, 7 ][dist]
                                                   > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                         > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0006766) vitamin metabolic process [88, 0][dist]
                           > (GO:0006767) water-soluble vitamin metabolic process [44, 0][dist]
                                 > (GO:0019362) pyridine nucleotide metabolic process [13, 0][dist]
                                       > (GO:0046497) nicotinate nucleotide metabolic process [2, 0][dist]
                                             > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                   > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0006766) vitamin metabolic process [88, 0][dist]
                           > (GO:0006767) water-soluble vitamin metabolic process [44, 0][dist]
                                 > (GO:0042364) water-soluble vitamin biosynthetic process [38, 0][dist]
                                       > (GO:0019363) pyridine nucleotide biosynthetic process [9, 2 ][dist]
                                             > (GO:0009435) NAD biosynthetic process [9, 7 ][dist]
                                                   > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                         > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0006766) vitamin metabolic process [88, 0][dist]
                           > (GO:0009110) vitamin biosynthetic process [82, 0][dist]
                                 > (GO:0042364) water-soluble vitamin biosynthetic process [38, 0][dist]
                                       > (GO:0019363) pyridine nucleotide biosynthetic process [9, 2 ][dist]
                                             > (GO:0009435) NAD biosynthetic process [9, 7 ][dist]
                                                   > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                         > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0009308) cellular amine metabolic process [373, 0][dist]
                           > (GO:0006520) amino acid metabolic process [281, 49 ][dist]
                                 > (GO:0009072) aromatic amino acid family metabolic process [42, 31 ][dist]
                                       > (GO:0006568) tryptophan metabolic process [9, 0][dist]
                                             > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0009308) cellular amine metabolic process [373, 0][dist]
                           > (GO:0006576) biogenic amine metabolic process [51, 2 ][dist]
                                 > (GO:0006586) indolalkylamine metabolic process [11, 0][dist]
                                       > (GO:0006568) tryptophan metabolic process [9, 0][dist]
                                             > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0044249) cellular biosynthetic process [560, 2 ][dist]
                           > (GO:0009110) vitamin biosynthetic process [82, 0][dist]
                                 > (GO:0042364) water-soluble vitamin biosynthetic process [38, 0][dist]
                                       > (GO:0019363) pyridine nucleotide biosynthetic process [9, 2 ][dist]
                                             > (GO:0009435) NAD biosynthetic process [9, 7 ][dist]
                                                   > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                         > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0044249) cellular biosynthetic process [560, 2 ][dist]
                           > (GO:0009165) nucleotide biosynthetic process [159, 2 ][dist]
                                 > (GO:0019363) pyridine nucleotide biosynthetic process [9, 2 ][dist]
                                       > (GO:0009435) NAD biosynthetic process [9, 7 ][dist]
                                             > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                   > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0044249) cellular biosynthetic process [560, 2 ][dist]
                           > (GO:0051188) cofactor biosynthetic process [207, 0][dist]
                                 > (GO:0009108) coenzyme biosynthetic process [182, 0][dist]
                                       > (GO:0019363) pyridine nucleotide biosynthetic process [9, 2 ][dist]
                                             > (GO:0009435) NAD biosynthetic process [9, 7 ][dist]
                                                   > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                         > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0046483) heterocycle metabolic process [116, 0][dist]
                           > (GO:0042430) indole and derivative metabolic process [11, 0][dist]
                                 > (GO:0042434) indole derivative metabolic process [11, 0][dist]
                                       > (GO:0006586) indolalkylamine metabolic process [11, 0][dist]
                                             > (GO:0006568) tryptophan metabolic process [9, 0][dist]
                                                   > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0051186) cofactor metabolic process [301, 0][dist]
                           > (GO:0006732) coenzyme metabolic process [239, 0][dist]
                                 > (GO:0006733) oxidoreduction coenzyme metabolic process [28, 0][dist]
                                       > (GO:0019362) pyridine nucleotide metabolic process [13, 0][dist]
                                             > (GO:0006769) nicotinamide metabolic process [13, 0][dist]
                                                   > (GO:0019674) NAD metabolic process [9, 0][dist]
                                                         > (GO:0009435) NAD biosynthetic process [9, 7 ][dist]
                                                               > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                                     > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0051186) cofactor metabolic process [301, 0][dist]
                           > (GO:0006732) coenzyme metabolic process [239, 0][dist]
                                 > (GO:0006733) oxidoreduction coenzyme metabolic process [28, 0][dist]
                                       > (GO:0019362) pyridine nucleotide metabolic process [13, 0][dist]
                                             > (GO:0019363) pyridine nucleotide biosynthetic process [9, 2 ][dist]
                                                   > (GO:0009435) NAD biosynthetic process [9, 7 ][dist]
                                                         > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                               > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0051186) cofactor metabolic process [301, 0][dist]
                           > (GO:0006732) coenzyme metabolic process [239, 0][dist]
                                 > (GO:0006733) oxidoreduction coenzyme metabolic process [28, 0][dist]
                                       > (GO:0019362) pyridine nucleotide metabolic process [13, 0][dist]
                                             > (GO:0046497) nicotinate nucleotide metabolic process [2, 0][dist]
                                                   > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                         > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0051186) cofactor metabolic process [301, 0][dist]
                           > (GO:0006732) coenzyme metabolic process [239, 0][dist]
                                 > (GO:0009108) coenzyme biosynthetic process [182, 0][dist]
                                       > (GO:0019363) pyridine nucleotide biosynthetic process [9, 2 ][dist]
                                             > (GO:0009435) NAD biosynthetic process [9, 7 ][dist]
                                                   > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                         > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0051186) cofactor metabolic process [301, 0][dist]
                           > (GO:0051188) cofactor biosynthetic process [207, 0][dist]
                                 > (GO:0009108) coenzyme biosynthetic process [182, 0][dist]
                                       > (GO:0019363) pyridine nucleotide biosynthetic process [9, 2 ][dist]
                                             > (GO:0009435) NAD biosynthetic process [9, 7 ][dist]
                                                   > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                         > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0044238) primary metabolic process [4742, 0][dist]
                     > (GO:0006139) nucleobase, nucleoside, nucleotide and nucleic acid metabolic process [1807, 18 ][dist]
                           > (GO:0009117) nucleotide metabolic process [197, 12 ][dist]
                                 > (GO:0009165) nucleotide biosynthetic process [159, 2 ][dist]
                                       > (GO:0019363) pyridine nucleotide biosynthetic process [9, 2 ][dist]
                                             > (GO:0009435) NAD biosynthetic process [9, 7 ][dist]
                                                   > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                         > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0044238) primary metabolic process [4742, 0][dist]
                     > (GO:0006139) nucleobase, nucleoside, nucleotide and nucleic acid metabolic process [1807, 18 ][dist]
                           > (GO:0009117) nucleotide metabolic process [197, 12 ][dist]
                                 > (GO:0019362) pyridine nucleotide metabolic process [13, 0][dist]
                                       > (GO:0006769) nicotinamide metabolic process [13, 0][dist]
                                             > (GO:0019674) NAD metabolic process [9, 0][dist]
                                                   > (GO:0009435) NAD biosynthetic process [9, 7 ][dist]
                                                         > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                               > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0044238) primary metabolic process [4742, 0][dist]
                     > (GO:0006139) nucleobase, nucleoside, nucleotide and nucleic acid metabolic process [1807, 18 ][dist]
                           > (GO:0009117) nucleotide metabolic process [197, 12 ][dist]
                                 > (GO:0019362) pyridine nucleotide metabolic process [13, 0][dist]
                                       > (GO:0019363) pyridine nucleotide biosynthetic process [9, 2 ][dist]
                                             > (GO:0009435) NAD biosynthetic process [9, 7 ][dist]
                                                   > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                         > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0044238) primary metabolic process [4742, 0][dist]
                     > (GO:0006139) nucleobase, nucleoside, nucleotide and nucleic acid metabolic process [1807, 18 ][dist]
                           > (GO:0009117) nucleotide metabolic process [197, 12 ][dist]
                                 > (GO:0019362) pyridine nucleotide metabolic process [13, 0][dist]
                                       > (GO:0046497) nicotinate nucleotide metabolic process [2, 0][dist]
                                             > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                   > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0044238) primary metabolic process [4742, 0][dist]
                     > (GO:0006519) cellular amino acid and derivative metabolic process [312, 11 ][dist]
                           > (GO:0006520) amino acid metabolic process [281, 49 ][dist]
                                 > (GO:0009072) aromatic amino acid family metabolic process [42, 31 ][dist]
                                       > (GO:0006568) tryptophan metabolic process [9, 0][dist]
                                             > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0008152) metabolic process [5617, 690 ][dist]
               > (GO:0044238) primary metabolic process [4742, 0][dist]
                     > (GO:0006519) cellular amino acid and derivative metabolic process [312, 11 ][dist]
                           > (GO:0006575) amino acid derivative metabolic process [65, 0][dist]
                                 > (GO:0006576) biogenic amine metabolic process [51, 2 ][dist]
                                       > (GO:0006586) indolalkylamine metabolic process [11, 0][dist]
                                             > (GO:0006568) tryptophan metabolic process [9, 0][dist]
                                                   > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0009987) cellular process [6692, 0][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0006082) organic acid metabolic process [513, 0][dist]
                           > (GO:0019752) carboxylic acid metabolic process [513, 19 ][dist]
                                 > (GO:0006520) amino acid metabolic process [281, 49 ][dist]
                                       > (GO:0009072) aromatic amino acid family metabolic process [42, 31 ][dist]
                                             > (GO:0006568) tryptophan metabolic process [9, 0][dist]
                                                   > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0009987) cellular process [6692, 0][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0006139) nucleobase, nucleoside, nucleotide and nucleic acid metabolic process [1807, 18 ][dist]
                           > (GO:0009117) nucleotide metabolic process [197, 12 ][dist]
                                 > (GO:0009165) nucleotide biosynthetic process [159, 2 ][dist]
                                       > (GO:0019363) pyridine nucleotide biosynthetic process [9, 2 ][dist]
                                             > (GO:0009435) NAD biosynthetic process [9, 7 ][dist]
                                                   > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                         > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0009987) cellular process [6692, 0][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0006139) nucleobase, nucleoside, nucleotide and nucleic acid metabolic process [1807, 18 ][dist]
                           > (GO:0009117) nucleotide metabolic process [197, 12 ][dist]
                                 > (GO:0019362) pyridine nucleotide metabolic process [13, 0][dist]
                                       > (GO:0006769) nicotinamide metabolic process [13, 0][dist]
                                             > (GO:0019674) NAD metabolic process [9, 0][dist]
                                                   > (GO:0009435) NAD biosynthetic process [9, 7 ][dist]
                                                         > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                               > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0009987) cellular process [6692, 0][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0006139) nucleobase, nucleoside, nucleotide and nucleic acid metabolic process [1807, 18 ][dist]
                           > (GO:0009117) nucleotide metabolic process [197, 12 ][dist]
                                 > (GO:0019362) pyridine nucleotide metabolic process [13, 0][dist]
                                       > (GO:0019363) pyridine nucleotide biosynthetic process [9, 2 ][dist]
                                             > (GO:0009435) NAD biosynthetic process [9, 7 ][dist]
                                                   > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                         > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0009987) cellular process [6692, 0][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0006139) nucleobase, nucleoside, nucleotide and nucleic acid metabolic process [1807, 18 ][dist]
                           > (GO:0009117) nucleotide metabolic process [197, 12 ][dist]
                                 > (GO:0019362) pyridine nucleotide metabolic process [13, 0][dist]
                                       > (GO:0046497) nicotinate nucleotide metabolic process [2, 0][dist]
                                             > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                   > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0009987) cellular process [6692, 0][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0006519) cellular amino acid and derivative metabolic process [312, 11 ][dist]
                           > (GO:0006520) amino acid metabolic process [281, 49 ][dist]
                                 > (GO:0009072) aromatic amino acid family metabolic process [42, 31 ][dist]
                                       > (GO:0006568) tryptophan metabolic process [9, 0][dist]
                                             > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0009987) cellular process [6692, 0][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0006519) cellular amino acid and derivative metabolic process [312, 11 ][dist]
                           > (GO:0006575) amino acid derivative metabolic process [65, 0][dist]
                                 > (GO:0006576) biogenic amine metabolic process [51, 2 ][dist]
                                       > (GO:0006586) indolalkylamine metabolic process [11, 0][dist]
                                             > (GO:0006568) tryptophan metabolic process [9, 0][dist]
                                                   > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0009987) cellular process [6692, 0][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0006725) cellular aromatic compound metabolic process [192, 12 ][dist]
                           > (GO:0009072) aromatic amino acid family metabolic process [42, 31 ][dist]
                                 > (GO:0006568) tryptophan metabolic process [9, 0][dist]
                                       > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0009987) cellular process [6692, 0][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0006725) cellular aromatic compound metabolic process [192, 12 ][dist]
                           > (GO:0042430) indole and derivative metabolic process [11, 0][dist]
                                 > (GO:0042434) indole derivative metabolic process [11, 0][dist]
                                       > (GO:0006586) indolalkylamine metabolic process [11, 0][dist]
                                             > (GO:0006568) tryptophan metabolic process [9, 0][dist]
                                                   > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0009987) cellular process [6692, 0][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0006766) vitamin metabolic process [88, 0][dist]
                           > (GO:0006767) water-soluble vitamin metabolic process [44, 0][dist]
                                 > (GO:0019362) pyridine nucleotide metabolic process [13, 0][dist]
                                       > (GO:0006769) nicotinamide metabolic process [13, 0][dist]
                                             > (GO:0019674) NAD metabolic process [9, 0][dist]
                                                   > (GO:0009435) NAD biosynthetic process [9, 7 ][dist]
                                                         > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                               > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0009987) cellular process [6692, 0][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0006766) vitamin metabolic process [88, 0][dist]
                           > (GO:0006767) water-soluble vitamin metabolic process [44, 0][dist]
                                 > (GO:0019362) pyridine nucleotide metabolic process [13, 0][dist]
                                       > (GO:0019363) pyridine nucleotide biosynthetic process [9, 2 ][dist]
                                             > (GO:0009435) NAD biosynthetic process [9, 7 ][dist]
                                                   > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                         > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0009987) cellular process [6692, 0][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0006766) vitamin metabolic process [88, 0][dist]
                           > (GO:0006767) water-soluble vitamin metabolic process [44, 0][dist]
                                 > (GO:0019362) pyridine nucleotide metabolic process [13, 0][dist]
                                       > (GO:0046497) nicotinate nucleotide metabolic process [2, 0][dist]
                                             > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                   > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0009987) cellular process [6692, 0][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0006766) vitamin metabolic process [88, 0][dist]
                           > (GO:0006767) water-soluble vitamin metabolic process [44, 0][dist]
                                 > (GO:0042364) water-soluble vitamin biosynthetic process [38, 0][dist]
                                       > (GO:0019363) pyridine nucleotide biosynthetic process [9, 2 ][dist]
                                             > (GO:0009435) NAD biosynthetic process [9, 7 ][dist]
                                                   > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                         > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0009987) cellular process [6692, 0][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0006766) vitamin metabolic process [88, 0][dist]
                           > (GO:0009110) vitamin biosynthetic process [82, 0][dist]
                                 > (GO:0042364) water-soluble vitamin biosynthetic process [38, 0][dist]
                                       > (GO:0019363) pyridine nucleotide biosynthetic process [9, 2 ][dist]
                                             > (GO:0009435) NAD biosynthetic process [9, 7 ][dist]
                                                   > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                         > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0009987) cellular process [6692, 0][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0009308) cellular amine metabolic process [373, 0][dist]
                           > (GO:0006520) amino acid metabolic process [281, 49 ][dist]
                                 > (GO:0009072) aromatic amino acid family metabolic process [42, 31 ][dist]
                                       > (GO:0006568) tryptophan metabolic process [9, 0][dist]
                                             > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0009987) cellular process [6692, 0][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0009308) cellular amine metabolic process [373, 0][dist]
                           > (GO:0006576) biogenic amine metabolic process [51, 2 ][dist]
                                 > (GO:0006586) indolalkylamine metabolic process [11, 0][dist]
                                       > (GO:0006568) tryptophan metabolic process [9, 0][dist]
                                             > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0009987) cellular process [6692, 0][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0044249) cellular biosynthetic process [560, 2 ][dist]
                           > (GO:0009110) vitamin biosynthetic process [82, 0][dist]
                                 > (GO:0042364) water-soluble vitamin biosynthetic process [38, 0][dist]
                                       > (GO:0019363) pyridine nucleotide biosynthetic process [9, 2 ][dist]
                                             > (GO:0009435) NAD biosynthetic process [9, 7 ][dist]
                                                   > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                         > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0009987) cellular process [6692, 0][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0044249) cellular biosynthetic process [560, 2 ][dist]
                           > (GO:0009165) nucleotide biosynthetic process [159, 2 ][dist]
                                 > (GO:0019363) pyridine nucleotide biosynthetic process [9, 2 ][dist]
                                       > (GO:0009435) NAD biosynthetic process [9, 7 ][dist]
                                             > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                   > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0009987) cellular process [6692, 0][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0044249) cellular biosynthetic process [560, 2 ][dist]
                           > (GO:0051188) cofactor biosynthetic process [207, 0][dist]
                                 > (GO:0009108) coenzyme biosynthetic process [182, 0][dist]
                                       > (GO:0019363) pyridine nucleotide biosynthetic process [9, 2 ][dist]
                                             > (GO:0009435) NAD biosynthetic process [9, 7 ][dist]
                                                   > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                         > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0009987) cellular process [6692, 0][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0046483) heterocycle metabolic process [116, 0][dist]
                           > (GO:0042430) indole and derivative metabolic process [11, 0][dist]
                                 > (GO:0042434) indole derivative metabolic process [11, 0][dist]
                                       > (GO:0006586) indolalkylamine metabolic process [11, 0][dist]
                                             > (GO:0006568) tryptophan metabolic process [9, 0][dist]
                                                   > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0009987) cellular process [6692, 0][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0051186) cofactor metabolic process [301, 0][dist]
                           > (GO:0006732) coenzyme metabolic process [239, 0][dist]
                                 > (GO:0006733) oxidoreduction coenzyme metabolic process [28, 0][dist]
                                       > (GO:0019362) pyridine nucleotide metabolic process [13, 0][dist]
                                             > (GO:0006769) nicotinamide metabolic process [13, 0][dist]
                                                   > (GO:0019674) NAD metabolic process [9, 0][dist]
                                                         > (GO:0009435) NAD biosynthetic process [9, 7 ][dist]
                                                               > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                                     > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0009987) cellular process [6692, 0][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0051186) cofactor metabolic process [301, 0][dist]
                           > (GO:0006732) coenzyme metabolic process [239, 0][dist]
                                 > (GO:0006733) oxidoreduction coenzyme metabolic process [28, 0][dist]
                                       > (GO:0019362) pyridine nucleotide metabolic process [13, 0][dist]
                                             > (GO:0019363) pyridine nucleotide biosynthetic process [9, 2 ][dist]
                                                   > (GO:0009435) NAD biosynthetic process [9, 7 ][dist]
                                                         > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                               > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0009987) cellular process [6692, 0][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0051186) cofactor metabolic process [301, 0][dist]
                           > (GO:0006732) coenzyme metabolic process [239, 0][dist]
                                 > (GO:0006733) oxidoreduction coenzyme metabolic process [28, 0][dist]
                                       > (GO:0019362) pyridine nucleotide metabolic process [13, 0][dist]
                                             > (GO:0046497) nicotinate nucleotide metabolic process [2, 0][dist]
                                                   > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                         > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0009987) cellular process [6692, 0][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0051186) cofactor metabolic process [301, 0][dist]
                           > (GO:0006732) coenzyme metabolic process [239, 0][dist]
                                 > (GO:0009108) coenzyme biosynthetic process [182, 0][dist]
                                       > (GO:0019363) pyridine nucleotide biosynthetic process [9, 2 ][dist]
                                             > (GO:0009435) NAD biosynthetic process [9, 7 ][dist]
                                                   > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                         > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]

   > (GO:0008150) biological_process [10287, 0][dist]
         > (GO:0009987) cellular process [6692, 0][dist]
               > (GO:0044237) cellular metabolic process [4703, 30 ][dist]
                     > (GO:0051186) cofactor metabolic process [301, 0][dist]
                           > (GO:0051188) cofactor biosynthetic process [207, 0][dist]
                                 > (GO:0009108) coenzyme biosynthetic process [182, 0][dist]
                                       > (GO:0019363) pyridine nucleotide biosynthetic process [9, 2 ][dist]
                                             > (GO:0009435) NAD biosynthetic process [9, 7 ][dist]
                                                   > (GO:0019357) nicotinate nucleotide biosynthetic process [2, 2 ][dist]
                                                         > (GO:0019356) nicotinate nucleotide biosynthetic process from tryptophan [0,0]