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22-AUGUST-2008 06:13:22 - Aminocarboxymuconate-semialdehyde decarboxylase In enzymology, an aminocarboxymuconate-semialdehyde decarboxylase EC 4.1.1.45 is an enzyme that catalyzes the chemical reaction 2-amino-3-3-oxoprop-1-en-1-ylbut-2-enedioate \rightleftharpoons 2-aminomuconate semialdehyde + CO2 Hence, this enzyme has one substrate, 2-amino-3-3-oxoprop-1-en-1-ylbut-2-enedioate, and two products, 2-aminomuconate semialdehyde and CO2. This enzyme belongs to the family of lyases, specifically the carboxy-lyases, which cleave carbon-carbon bonds. The systematic name of this enzyme class is 2-amino-3-3-oxoprop-1-en-1-ylbut-2-enedioate carboxy-lyase 2-aminomuconate-semialdehyde-forming. Other names in common use include picolinic acid carboxylase, picolinic acid decarboxylase, alpha-amino-beta-carboxymuconate-epsilon-semialdehade decarboxylase, alpha-amino-beta-carboxymuconate-epsilon-semialdehyde, beta-decarboxylase, 2-amino-3-3-oxoprop-2-enylbut-2-enedioate carboxy-lyase, and 2-amino-3-3-oxoprop-1-en-1-ylbut-2-enedioate carboxy-lyase. This enzyme participates in tryptophan metabolism. Contents 1 Structural studies 2 References 3 External links 3.1 Gene Ontology GO codes Structural studies As of late 2007, two structures have been solved for this class of enzymes, with PDB accession codes 2F6K and 2HBV. References IUBMB entry for 4.1.1.45 BRENDA references for 4.1.1.45 Recommended. PubMed references for 4.1.1.45 PubMed Central references for 4.1.1.45 Google Scholar references for 4.1.1.45 SENOH S 1965. STUDIES ON THE METABOLISM OF THE BENZENE RING OF TRYPTOPHAN IN MAMMALIAN TISSUES. II. ENZYMIC FORMATION OF ALPHA-AMINOMUCONIC ACID FROM 3-HYDROXYANTHRANILIC ACID. J. Biol. Chem. 240: 740-9. PMID 14275130. External links The CAS registry number for this enzyme class is 37289-47-7. IUBMB entry for 4.1.1.45 KEGG entry for 4.1.1.45 BRENDA entry for 4.1.1.45 NiceZyme view of 4.1.1.45 EC2PDB: PDB structures for 4.1.1.45 PRIAM entry for 4.1.1.45 PUMA2 entry for 4.1.1.45 IntEnz: Integrated Enzyme entry for 4.1.1.45 MetaCyc entry for 4.1.1.45 Atomic-resolution structures of enzymes belonging to this class Gene Ontology GO codes EGO entry for GO code 0001760: aminocarboxymuconate-semialdehyde decarboxylase AMIGO entry for GO code 0001760: aminocarboxymuconate-semialdehyde decarboxylase This EC 4.1 enzyme-related article is a stub. v d e Metabolism: amino acid metabolism - synthesis and catabolism enzymes essential in CAPS K→acetyl-CoA LYSINE→ Saccharopine dehydrogenase - Glutaryl-CoA dehydrogenase LEUCINE→ Branched chain aminotransferase - Branched-chain alpha-keto acid dehydrogenase complex - Isovaleryl coenzyme A dehydrogenase - Methylcrotonyl-CoA carboxylase - Methylglutaconyl-CoA hydratase - 3-hydroxy-3-methylglutaryl-CoA lyase TRYPTOPHAN→ Indoleamine 2,3-dioxygenase/Tryptophan 2,3-dioxygenase - Arylformamidase - Kynureninase - 3-hydroxyanthranilate oxidase - Aminocarboxymuconate-semialdehyde decarboxylase - Aminomuconate-semialdehyde dehydrogenase PHENYLALANINE→tyrosine→ see below G→pyruvate glycine→serine→ Serine hydroxymethyltransferase - Serine dehydratase alanine→ Alanine transaminase cysteine→ D-cysteine desulfhydrase threonine→ L-threonine dehydrogenase G→glutamate HISTIDINE→ Histidine ammonia-lyase - Urocanate hydratase - Formiminotransferase cyclodeaminase proline→ Proline oxidase - Pyrroline-5-carboxylate reductase - 1-Pyrroline-5-carboxylate dehydrogenase/ALDH4A1 - PYCR1 arginine→ Ornithine aminotransferase - Ornithine decarboxylase - Agmatinase →alpha-ketoglutarate→TCA Glutamate dehydrogenase G→propionyl-CoA VALINE→ Branched chain aminotransferase - Branched-chain alpha-keto acid dehydrogenase complex - Enoyl-CoA hydratase - 3-hydroxyisobutyryl-CoA hydrolase - 3-hydroxyisobutyrate dehydrogenase - Methylmalonate semialdehyde dehydrogenase ISOLEUCINE→ Branched chain aminotransferase - Branched-chain alpha-keto acid dehydrogenase complex - 3-hydroxy-2-methylbutyryl-CoA dehydrogenase METHIONINE→ Methionine adenosyltransferase - Adenosylhomocysteinase - Cystathionine beta synthase - Cystathionine gamma-lyase methionine synthesis: MTR/Homocysteine methyltransferase THREONINE→ Threonine aldolase →succinyl-CoA→TCA Propionyl-CoA carboxylase - Methylmalonyl CoA epimerase - Methylmalonyl-CoA mutase G→fumarate PHENYLALANINE→tyrosine→ Phenylalanine hydroxylase - Tyrosine aminotransferase - 4-Hydroxyphenylpyruvate dioxygenase - Homogentisate 1,2-dioxygenase - Fumarylacetoacetate hydrolase G→oxaloacetate asparagine→aspartate→ Asparaginase/Asparagine synthetase - Aspartate transaminase Other tyrosine→melanin Tyrosinase cysteine+glutamate→glutathione Gamma-glutamylcysteine synthetase - Glutathione synthetase - Gamma-glutamyl transpeptidase glycine→creatine Guanidinoacetate N-methyltransferase - Creatine kinase glutamate→glutamine Glutamine synthetase - Glutaminase proline+lysine→collagen Prolyl hydroxylase - Lysyl hydroxylase see also disorders, intermediates Retrieved from http://en..org/wiki/Aminocarboxymuconate-semialdehyde_decarboxylase Categories: EC 4.1 stubs | EC 4.1.1 | Enzymes of known structure Views Article Discussion this page History Personal tools Log in / create account Navigation Main page Contents Featured content Current events Random article Search Go Search Interaction Community portal Recent changes Contact Donate to Help Toolbox What links here Related changes Upload file Special pages Printable version Permanent link Cite this page This page was last modified on 6 June 2008, at 02:15
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