Protein: Tryptophan decarboxylase (A7B1V0)
Organism: Mediterraneibacter gnavus (strain ATCC 29149 / DSM 114966 / JCM 6515 / VPI
Function: Catalyzes the decarboxylation of tryptophan to tryptamine. Tryptamine is a neurotransmitter that induces the release of serotonin, which is suggested to modulate gastrointestinal motility. Therefore, the tryptophan decarboxylase from the gut bacteria Ruminococcus gnavus (strain ATCC 29149 / VPI C7-9) may influence host brain and behavior. Has weak activity with tyrosine and phenylalanine
Subcellular location: Cytoplasm. Note=In vitro, tryptamine is excreted into the extracellular fluid, suggesting that the bacterium has the potential to excrete tryptamine in the host gut lumen
InterPro domains:
- IPR015424: Pyridoxal phosphate-dependent transferase (homologous_superfamily) [21-483]
- IPR010977: Aromatic-L-amino-acid decarboxylase (family) [20-484]
- IPR015422: Pyridoxal phosphate-dependent transferase, small domain (homologous_superfamily) [363-489]
- IPR015421: Pyridoxal phosphate-dependent transferase, major domain (homologous_superfamily) [122-359]
- IPR021115: Pyridoxal-phosphate binding site (binding_site) [299-320]
- IPR002129: Pyridoxal phosphate-dependent decarboxylase (family) [59-415]
Sequence:
MSQVIKKKRNTFMIGTEYILNSTQLEEAIKSFVHDFCAEKHEIHDQPVVVEAKEHQEDKIKQIKIPEKGRPVNEVVSEMMNEVYRYRGDANHPRFFSFVPGPASSVSWLGDIMTSAYNIHAGGSKLAPMVNCIEQEVLKWLAKQVGFTENPGGVFVSGGSMANITALTAARDNKLTDINLHLGTAYISDQTHSSVAKGLRIIGITDSRIRRIPTNSHFQMDTTKLEEAIETDKKSGYIPFVVIGTAGTTNTGSIDPLTEISALCKKHDMWFHIDGAYGASVLLSPKYKSLLTGTGLADSISWDAHKWLFQTYGCAMVLVKDIRNLFHSFHVNPEYLKDLENDIDNVNTWDIGMELTRPARGLKLWLTLQVLGSDLIGSAIEHGFQLAVWAEEALNPKKDWEIVSPAQMAMINFRYAPKDLTKEEQDILNEKISHRILESGYAAIFTTVLNGKTVLRICAIHPEATQEDMQHTIDLLDQYGREIYTEMKKA
Predicted GO terms:
Molecular Function (MF): GO:0003674 (molecular function), GO:0003824 (catalytic activity), GO:0016829 (lyase activity), GO:0016830 (carbon-carbon lyase activity), GO:0016831 (carboxy-lyase activity)
Biological Process (BP): GO:0008150 (biological process), GO:0008152 (metabolic process), GO:0009987 (cellular process), GO:0009058 (biosynthetic process), GO:0044237 (cellular metabolic process), GO:0044281 (small molecule metabolic process), GO:0006807 (nitrogen compound metabolic process), GO:0071704 (organic substance metabolic process), GO:0009056 (catabolic process), GO:0044238 (primary metabolic process), GO:0006575 (cellular modified amino acid metabolic process), GO:1901564 (organonitrogen compound metabolic process), GO:1901576 (organic substance biosynthetic process), GO:0044282 (small molecule catabolic process), GO:0044283 (small molecule biosynthetic process), GO:0006082 (organic acid metabolic process), GO:0044248 (cellular catabolic process), GO:0044249 (cellular biosynthetic process), GO:0006520 (amino acid metabolic process), GO:1901575 (organic substance catabolic process), GO:0006790 (sulfur compound metabolic process), GO:1901566 (organonitrogen compound biosynthetic process), GO:0016054 (organic acid catabolic process), GO:0044273 (sulfur compound catabolic process), GO:1901565 (organonitrogen compound catabolic process), GO:0000096 (sulfur amino acid metabolic process), GO:0044272 (sulfur compound biosynthetic process), GO:0043436 (oxoacid metabolic process), GO:0016053 (organic acid biosynthetic process), GO:0009063 (amino acid catabolic process), GO:0019694 (alkanesulfonate metabolic process), GO:0042219 (cellular modified amino acid catabolic process), GO:1901605 (alpha-amino acid metabolic process), GO:0019752 (carboxylic acid metabolic process), GO:0006534 (cysteine metabolic process), GO:0000098 (sulfur amino acid catabolic process), GO:1901606 (alpha-amino acid catabolic process), GO:0046395 (carboxylic acid catabolic process), GO:0009069 (serine family amino acid metabolic process), GO:0009071 (serine family amino acid catabolic process), GO:0009093 (cysteine catabolic process)
Cellular Component (CC): GO:0005575 (cellular component), GO:0110165 (cellular anatomical entity), GO:0005737 (cytoplasm), GO:0005622 (intracellular anatomical structure)