ID COMT_PIG STANDARD; PRT; 186 AA. AC Q99028; DT 01-JUN-1994 (REL. 29, CREATED) DT 01-JUN-1994 (REL. 29, LAST SEQUENCE UPDATE) DT 01-OCT-1994 (REL. 30, LAST ANNOTATION UPDATE) DE CATECHOL-O-METHYLTRANSFERASE, SOLUBLE FORM (EC 2.1.1.6) (S-COMT) DE (FRAGMENT). OS SUS SCROFA (PIG). OC EUKARYOTA; METAZOA; CHORDATA; VERTEBRATA; TETRAPODA; MAMMALIA; OC EUTHERIA; ARTIODACTYLA. RN [1] RP SEQUENCE FROM N.A. RX MEDLINE; 91142183. RA BERTOCCI B., MIGGIANO V., DA PRADA M., DEMBIC Z., LAHM H-.W., RA MALHERBE P.; RL PROC. NATL. ACAD. SCI. U.S.A. 88:1416-1420(1991). RN [2] RP PARTIAL SEQUENCE. RC TISSUE=LIVER; RX MEDLINE; 92031656. RA BERTOCCI B., GAROTTA G., DA PRADA M., LAHM H-.W., ZURCHER G., RA VIRGALLITA G., MIGGIANO V.; RL BIOCHIM. BIOPHYS. ACTA 1080:103-109(1991). CC -!- CATALYTIC ACTIVITY: CATALYZES THE O-METHYLATION, AND THEREBY THE CC INACTIVATION, OF CATECHOLAMINE NEUROTRANSMITTERS AND CATECHOL CC HORMONES. ALSO SHORTENS THE BIOLOGICAL HALF-LIVES OF CERTAIN CC NEUROACTIVE DRUGS, LIKE L-DOPA, ALPHA-METHYL DOPA & ISOPROTERENOL. CC -!- CATALYTIC ACTIVITY: S-ADENOSYL-L-METHIONINE + CATECHOL = CC S-ADENOSYL-L-HOMOCYSTEINE + GUAIACOL. CC -!- COFACTOR: MAGNESIUM. CC -!- SUBCELLULAR LOCATION: OCCURS IN TWO FORMS: CYTOSOLIC (S-COMT), CC AND MEMBRANE-BOUND (MB-COMT). CC -!- SIMILARITY: TO OTHER MAMMALIAN CATECHOL-O-METHYLTRANSFERASE. CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- KW TRANSFERASE; METHYLTRANSFERASE; NEUROTRANSMITTER DEGRADATION; KW MAGNESIUM. FT NON_TER 1 1 FT ACT_SITE 109 109 BY SIMILARITY. FT ACT_SITE 164 164 BY SIMILARITY. FT METAL 106 106 MAGNESIUM (BY SIMILARITY). FT METAL 134 134 MAGNESIUM (BY SIMILARITY). FT METAL 135 135 MAGNESIUM (BY SIMILARITY). SQ SEQUENCE 186 AA; 20587 MW; 180252 CN; KERAMHVGRK KGQIVDTVVQ EQRPSVLLEL GAYCGYSAVR MARLLLPSAR LLTIELNPDN AAIAQQVVDF AGLQDRVTVV VGASQDIIPQ LKKKYDVDTL DMVFLDHWKD RYLPDTLLLE ECGLLRKGTV LLADNVICPG APDFLAHVRG CGRFECTHFS SYLEYSQMVD GLEKAVYKGP GSPAQP //