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Your query returned 21 entries. Printable version
EC | 1.14.99.31 | ||||||||||||||
Transferred entry: | myristoyl-CoA 11-(E) desaturase. Now classified as EC 1.14.19.24, myristoyl-CoA 11-(E) desaturase | ||||||||||||||
EC | 1.14.99.32 | ||||||||||||||
Transferred entry: | myristoyl-CoA 11-(Z) desaturase. Now classified as EC 1.14.19.5, acyl-CoA 11-(Z)-desaturase. | ||||||||||||||
EC | 2.3.1.97 | ||||||||||||||
Accepted name: | glycylpeptide N-tetradecanoyltransferase | ||||||||||||||
Reaction: | tetradecanoyl-CoA + an N-terminal-glycyl-[protein] = CoA + an N-terminal-N-tetradecanoylglycyl-[protein] | ||||||||||||||
Glossary: | tetradecanoyl-CoA = myristoyl-CoA | ||||||||||||||
Other name(s): | NMT (gene name); peptide N-myristoyltransferase; myristoyl-CoA-protein N-myristoyltransferase; myristoyl-coenzyme A:protein N-myristoyl transferase; myristoylating enzymes; protein N-myristoyltransferase; tetradecanoyl-CoA:glycylpeptide N-tetradecanoyltransferase | ||||||||||||||
Systematic name: | tetradecanoyl-CoA:N-terminal-glycine-[protein] N-tetradecanoyltransferase | ||||||||||||||
Comments: | The enzyme catalyses the transfer of myristic acid from myristoyl-CoA to the amino group of the N-terminal glycine residue in a variety of eukaryotic proteins. It uses an ordered Bi Bi reaction in which myristoyl-CoA binds to the enzyme prior to the binding of the peptide substrate, and CoA release precedes the release of the myristoylated peptide. The enzyme from yeast is profoundly affected by amino acids further from the N-terminus, and is particularly stimulated by a serine residue at position 5. | ||||||||||||||
Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc, PDB, CAS registry number: 110071-61-9 | ||||||||||||||
References: |
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EC | 2.3.1.129 | ||||||||||||||
Accepted name: | acyl-[acyl-carrier-protein]—UDP-N-acetylglucosamine O-acyltransferase | ||||||||||||||
Reaction: | a (3R)-3-hydroxyacyl-[acyl-carrier protein] + UDP-N-acetyl-α-D-glucosamine = an [acyl-carrier protein] + a UDP-3-O-[(3R)-3-hydroxyacyl]-N-acetyl-α-D-glucosamine | ||||||||||||||
For diagram of lipid IVA biosynthesis, click here | |||||||||||||||
Other name(s): | lpxA (gene name); UDP-N-acetylglucosamine acyltransferase; uridine diphosphoacetylglucosamine acyltransferase; acyl-[acyl-carrier-protein]-UDP-N-acetylglucosamine O-acyltransferase; (R)-3-hydroxytetradecanoyl-[acyl-carrier-protein]:UDP-N-acetylglucosamine 3-O-(3-hydroxytetradecanoyl)transferase | ||||||||||||||
Systematic name: | (3R)-3-hydroxyacyl-[acyl-carrier protein]:UDP-N-acetyl-α-D-glucosamine 3-O-(3-hydroxyacyl)transferase | ||||||||||||||
Comments: | Involved with EC 2.4.1.182, lipid-A-disaccharide synthase, and EC 2.7.1.130, tetraacyldisaccharide 4′-kinase, in the biosynthesis of the phosphorylated glycolipid, Lipid A, in the outer membrane of Gram-negative bacteria. | ||||||||||||||
Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc, PDB, CAS registry number: 105843-69-4 | ||||||||||||||
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EC | 2.3.1.191 | ||||||||||||||
Accepted name: | UDP-3-O-(3-hydroxyacyl)glucosamine N-acyltransferase | ||||||||||||||
Reaction: | a (3R)-3-hydroxyacyl-[acyl-carrier protein] + a UDP-3-O-[(3R)-3-hydroxyacyl]-α-D-glucosamine = a UDP-2-N,3-O-bis[(3R)-3-hydroxyacyl]-α-D-glucosamine + a holo-[acyl-carrier protein] | ||||||||||||||
For diagram of lipid IVA biosynthesis, click here | |||||||||||||||
Other name(s): | lpxD (gene name); UDP-3-O-acyl-glucosamine N-acyltransferase; UDP-3-O-(R-3-hydroxymyristoyl)-glucosamine N-acyltransferase; acyltransferase LpxD; acyl-ACP:UDP-3-O-(3-hydroxyacyl)-GlcN N-acyltransferase; firA (gene name); (3R)-3-hydroxymyristoyl-[acyl-carrier protein]:UDP-3-O-[(3R)-3-hydroxymyristoyl]-α-D-glucosamine N-acetyltransferase; UDP-3-O-(3-hydroxymyristoyl)glucosamine N-acyltransferase; (3R)-3-hydroxytetradecanoyl-[acyl-carrier protein]:UDP-3-O-[(3R)-3-hydroxytetradecanoyl]-α-D-glucosamine N-acetyltransferase | ||||||||||||||
Systematic name: | (3R)-3-hydroxyacyl-[acyl-carrier protein]:UDP-3-O-[(3R)-3-hydroxyacyl]-α-D-glucosamine N-acyltransferase | ||||||||||||||
Comments: | The enzyme catalyses a step of lipid A biosynthesis. LpxD from Escherichia coli prefers (3R)-3-hydroxytetradecanoyl-[acyl-carrier protein] [3], but it does not have an absolute specificity for 14-carbon hydroxy fatty acids, as it can transfer other fatty acids, including odd-chain fatty acids, if they are available to the organism [5]. | ||||||||||||||
Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc, PDB | ||||||||||||||
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EC | 2.3.1.242 | ||||||||||||||
Accepted name: | Kdo2-lipid IVA palmitoleoyltransferase | ||||||||||||||
Reaction: | a (9Z)-hexadec-9-enoyl-[acyl-carrier protein] + Kdo2-lipid IVA = (9Z)-hexadec-9-enoyl-Kdo2-lipid IVA + an [acyl-carrier protein] | ||||||||||||||
For diagram of Kdo-Kdo-Lipid IVA metabolism, click here | |||||||||||||||
Glossary: | Kdo = 3-deoxy-D-manno-oct-2-ulopyranosylonic acid lipid IVA = 2-deoxy-2-[(3R)-3-hydroxytetradecanamido]-3-O-[(3R)-3-hydroxytetradecanoyl]-4-O-phospho-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxytetradecanoyl]-2-[(3R)-3-hydroxytetradecanamido]-α-D-glucopyranosyl phosphate Kdo2-lipid IVA = α-Kdo-(2→4)-α-Kdo-(2→6)-lipid IVA (9Z)-hexadec-9-enoyl = palmitoleoyl (9Z)-hexadec-9-enoyl-Kdo2-lipid IVA = α-Kdo-(2→4)-α-Kdo-(2→6)-2-deoxy-2-{(3R)-3-[(9Z)-hexadec-9-enoyl]tetradecanamido}-3-O-[(3R)-3-hydroxytetradecanoyl]-4-O-phospho-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxytetradecanoyl]-2-[(3R)-3-hydroxytetradecanamido]-α-D-glucopyranosyl phosphate |
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Other name(s): | LpxP; palmitoleoyl-acyl carrier protein-dependent acyltransferase; cold-induced palmitoleoyl transferase; palmitoleoyl-[acyl-carrier protein]:Kdo2-lipid IVA O-palmitoleoyltransferase; (Kdo)2-lipid IVA palmitoleoyltransferase; α-Kdo-(2→4)-α-(2→6)-lipid IVA palmitoleoyltransferase | ||||||||||||||
Systematic name: | (9Z)-hexadec-9-enoyl-[acyl-carrier protein]:Kdo2-lipid IVA O-palmitoleoyltransferase | ||||||||||||||
Comments: | The enzyme, characterized from the bacterium Escherichia coli, is induced upon cold shock and is involved in the formation of a cold-adapted variant of the outer membrane glycolipid lipid A. | ||||||||||||||
Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc | ||||||||||||||
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EC | 2.3.1.243 | ||||||||||||||
Accepted name: | acyl-Kdo2-lipid IVA acyltransferase | ||||||||||||||
Reaction: | a fatty acyl-[acyl-carrier protein] + an α-Kdo-(2→4)-α-Kdo-(2→6)-(acyl)-[lipid IVA] = an α-Kdo-(2→4)-α-Kdo-(2→6)-(acyl)2-[lipid IVA] + an [acyl-carrier protein] | ||||||||||||||
For diagram of Kdo-Kdo-Lipid IVA metabolism, click here | |||||||||||||||
Glossary: | Kdo = 3-deoxy-D-manno-oct-2-ulopyranosylonic acid a lipid IVA = 2-deoxy-2-{[(3R)-3-hydroxyacyl]amino}-3-O-[(3R)-3-hydroxyacyl]-4-O-phospho-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxyacyl]-2-{[(3R)-3-hydroxyacyl]amino}-1-O-phospho-α-D-glucopyranose an α-Kdo-(2→4)-α-Kdo-(2→6)-(acyl)-[lipid IVA] = 3-deoxy-α-D-manno-oct-2-ulopyranosyl-(2→4)-3-deoxy-α-D-manno-oct-2-ulopyranosyl-(2→6)-2-deoxy-2-{[(3R)-3-(acyloxy)acyl]amino}-3-O-[(3R)-3-hydroxyacyl]-4-O-phospho-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxyacyl]-2-{[(3R)-3-hydroxyacyl]amino}-1-O-phosphono-α-D-glucopyranose an α-Kdo-(2→4)-α-Kdo-(2→6)-(acyl)2-[lipid IVA] = 3-deoxy-α-D-manno-oct-2-ulopyranosyl-(2→4)-3-deoxy-α-D-manno-oct-2-ulopyranosyl-(2→6)-2-deoxy-2-{[(3R)-3-(acyloxy)acyl]amino}-3-O-[(3R)-3-(acyloxy)acyl]-4-O-phospho-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxyacyl]-2-{[(3R)-3-hydroxyacyl]amino}-1-O-phospho-α-D-glucopyranose |
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Other name(s): | lpxM (gene name); MsbB acyltransferase; myristoyl-[acyl-carrier protein]:α-Kdo-(2→4)-α-Kdo-(2→6)-(dodecanoyl)-lipid IVA O-myristoyltransferase; tetradecanoyl-[acyl-carrier protein]:dodecanoyl-Kdo2-lipid IVA O-tetradecanoyltransferase; lauroyl-Kdo2-lipid IVA myristoyltransferase | ||||||||||||||
Systematic name: | fatty acyl-[acyl-carrier protein]:α-Kdo-(2→4)-α-Kdo-(2→6)-(acyl)-[lipid IVA] O-acyltransferase | ||||||||||||||
Comments: | The enzyme is involved in the biosynthesis of the phosphorylated outer membrane glycolipid lipid A. It transfers an acyl group to the 3-O position of the 3R-hydroxyacyl already attached at the 2-O position of the non-reducing glucosamine molecule. The enzyme from the bacterium Escherichia coli is specific for myristoyl (C14) acyl groups, giving the enzyme its previous accepted name. However, enzymes from different species accept highly variable substrates. | ||||||||||||||
Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc | ||||||||||||||
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EC | 2.3.1.251 | ||||||||||||||
Accepted name: | lipid IVA palmitoyltransferase | ||||||||||||||
Reaction: | (1) 1-palmitoyl-2-acyl-sn-glycero-3-phosphocholine + hexa-acyl lipid A = 2-acyl-sn-glycero-3-phosphocholine + hepta-acyl lipid A (2) 1-palmitoyl-2-acyl-sn-glycero-3-phosphocholine + lipid IIA = 2-acyl-sn-glycero-3-phosphocholine + lipid IIB (3) 1-palmitoyl-2-acyl-sn-glycero-3-phosphocholine + lipid IVA = 2-acyl-sn-glycero-3-phosphocholine + lipid IVB |
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For diagram of lipid IVB biosynthesis, click here | |||||||||||||||
Glossary: | palmitoyl = hexadecanoyl hexa-acyl lipid A = 2-deoxy-2-[(3R)-3-(tetradecanoyloxy)tetradecanamido]-3-O-[(3R)-3-(dodecanoyloxy)tetradecanoyl]-4-O-phospho-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxytetradecanoyl]-2-[(3R)-3-hydroxytetradecanamido]-α-D-glucopyranosyl phosphate hepta-acyl lipid A = 2-deoxy-2-[(3R)-3-(tetradecanoyloxy)tetradecanamido]-3-O-[(3R)-3-(dodecanoyloxy)tetradecanoyl]-4-O-phospho-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxytetradecanoyl]-2-[(3R)-3-(hexadecanoyloxy)tetradecanamido]-α-D-glucopyranosyl phosphate lipid IIA = 4-amino-4-deoxy-β-L-arabinopyranosyl 2-deoxy-2-[(3R)-3-hydroxytetradecanamido]-3-O-[(3R)-3-hydroxytetradecanoyl]-4-O-phospho-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxytetradecanoyl]-2-[(3R)-3-hydroxytetradecanamido]-α-D-glucopyranose phosphate lipid IIB = 4-amino-4-deoxy-β-L-arabinopyranosyl 2-deoxy-2-[(3R)-3-hydroxytetradecanamido]-3-O-[(3R)-3-hydroxytetradecanoyl]-4-O-phospho-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxytetradecanoyl]-2-[(3R)-3-(hexadecanoyloxy)tetradecanamido]-α-D-glucopyranosyl phosphate lipid IVA = 2-deoxy-2-[(3R)-3-hydroxytetradecanamido]-3-O-[(3R)-3-hydroxytetradecanoyl]-4-O-phospho-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxytetradecanoyl]-2-[(3R)-3-hydroxytetradecanamido]-α-D-glucopyranose phosphate lipid IVB = 2-deoxy-2-[(3R)-3-hydroxytetradecanamido]-3-O-[(3R)-3-hydroxytetradecanoyl]-4-O-phospho-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxytetradecanoyl]-2-[(3R)-3-(hexadecanoyloxy)tetradecanamido]-α-D-glucopyranosyl phosphate |
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Other name(s): | PagP; crcA (gene name) | ||||||||||||||
Systematic name: | 1-palmitoyl-2-acyl-sn-glycero-3-phosphocholine:lipid-IVA palmitoyltransferase | ||||||||||||||
Comments: | Isolated from the bacteria Escherichia coli and Salmonella typhimurium. The enzyme prefers phosphatidylcholine with a palmitoyl group at the sn-1 position and palmitoyl or stearoyl groups at the sn-2 position. There is some activity with corresponding phosphatidylserines but only weak activity with other diacylphosphatidyl compounds. The enzyme also acts on Kdo-(2→4)-Kdo-(2→6)-lipid IVA. | ||||||||||||||
Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc, PDB | ||||||||||||||
References: |
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EC | 2.3.1.301 | ||||||||||||||
Accepted name: | mycobacterial β-ketoacyl-[acyl carrier protein] synthase III | ||||||||||||||
Reaction: | dodecanoyl-CoA + a malonyl-[acyl-carrier protein] = a 3-oxotetradecanoyl-[acyl-carrier protein] + CoA + CO2 | ||||||||||||||
Glossary: | dodecanoyl-CoA = lauroyl-CoA | ||||||||||||||
Other name(s): | fabH (gene name) (ambiguous); mycobacterial 3-oxoacyl-[acyl carrier protein] synthase III | ||||||||||||||
Systematic name: | dodecanoyl-CoA:malonyl-[acyl-carrier protein] C-acyltransferase | ||||||||||||||
Comments: | The enzyme, characterized from mycobacteria, provides a link between the type I and type II fatty acid synthase systems (FAS-I and FAS-II, respectively) found in these organisms. The enzyme acts on medium- and long-chain acyl-CoAs (C12-C16) produced by the FAS-I system, condensing them with malonyl-[acyl-carrier protein] (malonyl-AcpM) and forming starter molecules for the FAS-II system, which elongates them into meromycolic acids. The enzyme has no activity with short-chain acyl-CoAs (e.g. acetyl-CoA), which are used by EC 2.3.1.180, β-ketoacyl-[acyl-carrier-protein] synthase III, or branched-chain acyl-CoAs, which are used by EC 2.3.1.300, branched-chain β-ketoacyl-[acyl-carrier-protein] synthase. | ||||||||||||||
Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc | ||||||||||||||
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EC | 2.4.1.182 | ||||||||||||||
Accepted name: | lipid-A-disaccharide synthase | ||||||||||||||
Reaction: | a UDP-2-N,3-O-bis[(3R)-3-hydroxyacyl]-α-D-glucosamine + a lipid X = UDP + a lipid A disaccharide | ||||||||||||||
For diagram of lipid IVA biosynthesis, click here | |||||||||||||||
Glossary: | a lipid X = 2-N-[(3R)-3-hydroxyacyl]-3-O-[(3R)-3-hydroxyacyl]-α-D-glucosamine 1-phosphate = 2-N,3-O-bis[(3R)-3-hydroxyacyl]-α-D-glucosamine a lipid A disaccharide = a 2-deoxy-2-{[(3R)-3-hydroxyacyl]amino}-3-O-[(3R)-3-hydroxyacyl]-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxyacyl]-2-{[(3R)-3-hydroxyacyl]amino}-1-O-phospho-α-D-glucopyranose |
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Other name(s): | lpxB (gene name); UDP-2,3-bis(3-hydroxytetradecanoyl)glucosamine:2,3-bis-(3-hydroxytetradecanoyl)-β-D-glucosaminyl-1-phosphate 2,3-bis(3-hydroxytetradecanoyl)-glucosaminyltransferase (incorrect) | ||||||||||||||
Systematic name: | UDP-2-N,3-O-bis[(3R)-3-hydroxyacyl]-α-D-glucosamine:2-N,3-O-bis[(3R)-3-hydroxyacyl]-α-D-glucosamine 1-phosphate 2-N,3-O-bis[(3R)-3-hydroxyacyl]-α-D-glucosaminyltransferase | ||||||||||||||
Comments: | Involved with EC 2.3.1.129 (acyl-[acyl-carrier-protein]—UDP-N-acetylglucosamine O-acyltransferase) and EC 2.7.1.130 (tetraacyldisaccharide 4′-kinase) in the biosynthesis of the phosphorylated glycolipid, lipid A, in the outer membrane of Gram-negative bacteria. | ||||||||||||||
Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc, PDB, CAS registry number: 105843-81-0 | ||||||||||||||
References: |
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EC | 2.4.2.43 | ||||||||||||||
Accepted name: | lipid IVA 4-amino-4-deoxy-L-arabinosyltransferase | ||||||||||||||
Reaction: | (1) 4-amino-4-deoxy-α-L-arabinopyranosyl ditrans,octacis-undecaprenyl phosphate + α-Kdo-(2→4)-α-Kdo-(2→6)-lipid A = α-Kdo-(2→4)-α-Kdo-(2→6)-[4-P-L-Ara4N]-lipid A + ditrans,octacis-undecaprenyl phosphate (2) 4-amino-4-deoxy-α-L-arabinopyranosyl ditrans,octacis-undecaprenyl phosphate + lipid IVA = lipid IIA + ditrans,octacis-undecaprenyl phosphate (3) 4-amino-4-deoxy-α-L-arabinopyranosyl ditrans,octacis-undecaprenyl phosphate + α-Kdo-(2→4)-α-Kdo-(2→6)-lipid IVA = 4′-α-L-Ara4N-α-Kdo-(2→4)-α-Kdo-(2→6)-lipid IVA + ditrans,octacis-undecaprenyl phosphate |
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For diagram of lipid IIA biosynthesis, click here | |||||||||||||||
Glossary: | lipid IVA = 2-deoxy-2-{[(3R)-3-hydroxytetradecanoyl]amino}-3-O-[(3R)-3-hydroxytetradecanoyl]-4-O-phospho-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxytetradecanoyl]-2-{[(3R)-3-hydroxytetradecanoyl]amino}-1-O-phosphono-α-D-glucopyranose lipid IIA = 4-amino-4-deoxy-β-L-arabinopyranosyl 2-deoxy-2-{[(3R)-3-hydroxytetradecanoyl]amino}-3-O-[(3R)-3-hydroxytetradecanoyl]-4-O-phospho-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxytetradecanoyl]-2-{[(3R)-3-hydroxytetradecanoyl]amino}-α-D-glucopyranosyl phosphate α-Kdo-(2→4)-α-Kdo-(2→6)-lipid IVA = (3-deoxy-α-D-manno-oct-2-ulopyranosylonate)-(2→4)-(3-deoxy-α-D-manno-oct-2-ulopyranosylonate)-(2→6)-2-deoxy-2-{[(3R)-3-hydroxytetradecanoyl]amino}-3-O-[(3R)-3-hydroxytetradecanoyl]-4-O-phosphono-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxytetradecanoyl]-2-{[(3R)-3-hydroxytetradecanoyl]amino}-1-O-phosphono-α-D-glucopyranose 4′-α-L-Ara4N-α-Kdo-(2→4)-α-Kdo-(2→6)-lipid IVA = 4-amino-4-deoxy-α-L-arabinopyranosyl 2-deoxy-2-[(3R)-3-hydroxytetradecanamido]-3-O-[(3R)-3-hydroxytetradecanoyl]-4-phospho-β-D-glucopyranosy-(1→6)-2-deoxy-2-[(3R)-3-hydroxytetradecanamido]-3-O-[(3R)-3-hydroxytetradecanoyl]-α-D-glucopyranosyl phosphate lipid A = lipid A of Escherichia coli = 2-deoxy-2-{[(3R)-3-(dodecanoyloxy)tetradecanoyl]amino}-3-O-[(3R)-3-(tetradecanoyloxy)tetradecanoyl]-4-O-phospho-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxytetradecanoyl]-2-{[(3R)-3-hydroxytetradecanoyl]amino}-1-O-phosphono-α-D-glucopyranose α-Kdo-(2→4)-α-Kdo-(2→6)-lipid A = (3-deoxy-α-D-manno-oct-2-ulopyranosylonate)-(2→4)-(3-deoxy-α-D-manno-oct-2-ulopyranosylonate)-(2→6)-2-deoxy-2-{[(3R)-3-(dodecanoyloxy)tetradecanoyl]amino}-3-O-[(3R)-3-(tetradecanoyloxy)tetradecanoyl]-4-O-phospho-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxytetradecanoyl]-2-{[(3R)-3-hydroxytetradecanoyl]amino}-1-O-phosphono-α-D-glucopyranose α-Kdo-(2→4)-α-Kdo-(2→6)-[4′-P-α-L-Ara4N]-lipid A = (3-deoxy-α-D-manno-oct-2-ulopyranosylonate)-(2→4)-(3-deoxy-α-D-manno-oct-2-ulopyranosylonate)-(2→6)-2-deoxy-2-{[(3R)-3-(dodecanoyloxy)tetradecanoyl]amino}-3-O-[(3R)-3-(tetradecanoyloxy)tetradecanoyl]-4-O-(4-amino-4-deoxy-α-L-arabinopyranosyl)phospho-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxytetradecanoyl]-2-{[(3R)-3-hydroxytetradecanoyl]amino}-1-O-phosphono-α-D-glucopyranose |
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Other name(s): | undecaprenyl phosphate-α-L-Ara4N transferase; 4-amino-4-deoxy-L-arabinose lipid A transferase; polymyxin resistance protein PmrK; arnT (gene name) | ||||||||||||||
Systematic name: | 4-amino-4-deoxy-α-L-arabinopyranosyl ditrans,octacis-undecaprenyl-phosphate:lipid IVA 4-amino-4-deoxy-L-arabinopyranosyltransferase | ||||||||||||||
Comments: | Integral membrane protein present in the inner membrane of certain Gram negative endobacteria. In strains that do not produce 3-deoxy-D-manno-octulosonic acid (Kdo), the enzyme adds a single arabinose unit to the 1-phosphate moiety of the tetra-acylated lipid A precursor, lipid IVA. In the presence of a Kdo disaccharide, the enzyme primarily adds an arabinose unit to the 4-phosphate of lipid A molecules. The Salmonella typhimurium enzyme can add arabinose units to both positions. | ||||||||||||||
Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc, PDB | ||||||||||||||
References: |
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EC | 2.4.99.14 | ||||||||||||||
Accepted name: | (Kdo)2-lipid IVA (2-8) 3-deoxy-D-manno-octulosonic acid transferase | ||||||||||||||
Reaction: | α-Kdo-(2→4)-α-Kdo-(2→6)-lipid IVA + CMP-β-Kdo = α-Kdo-(2→8)-α-Kdo-(2→4)-α-Kdo-(2→6)-lipid IVA + CMP | ||||||||||||||
For diagram of Kdo4-Lipid IVA biosynthesis, click here | |||||||||||||||
Glossary: | (Kdo)2-lipid IVA = α-Kdo-(2→4)-α-Kdo-(2→6)-lipid IVA = (3-deoxy-α-D-manno-oct-2-ulopyranosylonate)-(2→4)-(3-deoxy-α-D-manno-oct-2-ulopyranosylonate)-(2→6)-2-deoxy-2-{[(3R)-3-hydroxytetradecanoyl]amino}-3-O-[(3R)-3-hydroxytetradecanoyl]-4-O-phosphono-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxytetradecanoyl]-2-{[(3R)-3-hydroxytetradecanoyl]amino}-1-O-phosphono-α-D-glucopyranose (Kdo)3-lipid IVA = α-Kdo-(2→8)-α-Kdo-(2→4)-α-Kdo-(2→6)-lipid IVA = (3-deoxy-α-D-manno-oct-2-ulopyranosylonate)-(2→8)-(3-deoxy-α-D-manno-oct-2-ulopyranosylonate)-(2→4)-(3-deoxy-α-D-manno-oct-2-ulopyranosylonate)-(2→6)-2-deoxy-2-{[(3R)-3-hydroxytetradecanoyl]amino}-3-O-[(3R)-3-hydroxytetradecanoyl]-4-O-phosphono-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxytetradecanoyl]-2-{[(3R)-3-hydroxytetradecanoyl]amino}-1-O-phosphono-α-D-glucopyranose CMP-β-Kdo = CMP-3-deoxy-β-D-manno-oct-2-ulopyranosylonate |
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Other name(s): | Kdo transferase; waaA (gene name); kdtA (gene name); 3-deoxy-D-manno-oct-2-ulosonic acid transferase; 3-deoxy-manno-octulosonic acid transferase; (KDO)2-lipid IVA (2-8) 3-deoxy-D-manno-octulosonic acid transferase | ||||||||||||||
Systematic name: | CMP-3-deoxy-D-manno-oct-2-ulosonate:(Kdo)2-lipid IVA 3-deoxy-D-manno-oct-2-ulosonate transferase [(2→8) glycosidic bond-forming] | ||||||||||||||
Comments: | The enzymes from Chlamydia transfer three or more 3-deoxy-D-manno-oct-2-ulosonate residues and generate genus-specific epitopes. | ||||||||||||||
Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc | ||||||||||||||
References: |
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EC | 2.4.99.15 | ||||||||||||||
Accepted name: | (Kdo)3-lipid IVA (2-4) 3-deoxy-D-manno-octulosonic acid transferase | ||||||||||||||
Reaction: | α-Kdo-(2→8)-α-Kdo-(2→4)-α-Kdo-(2→6)-lipid IVA + CMP-β-Kdo = α-Kdo-(2→8)-[α-Kdo-(2→4)]-α-Kdo-(2→4)-α-Kdo-(2→6)-lipid IVA + CMP | ||||||||||||||
For diagram of Kdo4-Lipid IVA biosynthesis, click here | |||||||||||||||
Glossary: | (Kdo)3-lipid IVA = α-Kdo-(2→8)-α-Kdo-(2→4)-α-Kdo-(2→6)-lipid IVA = (3-deoxy-α-D-manno-oct-2-ulopyranosylonate)-(2→8)-(3-deoxy-α-D-manno-oct-2-ulopyranosylonate)-(2→4)-(3-deoxy-α-D-manno-oct-2-ulopyranosylonate)-(2→6)-2-deoxy-2-{[(3R)-3-hydroxytetradecanoyl]amino}-3-O-[(3R)-3-hydroxytetradecanoyl]-4-O-phosphono-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxytetradecanoyl]-2-{[(3R)-3-hydroxytetradecanoyl]amino}-1-O-phosphono-α-D-glucopyranose (Kdo)4-lipid IVA = α-Kdo-(2→8)-[α-Kdo-(2→4)]-α-Kdo-(2→4)-α-Kdo-(2→6)-lipid IVA = (3-deoxy-α-D-manno-oct-2-ulopyranosylonate)-(2→8)-[(3-deoxy-α-D-manno-oct-2-ulopyranosylonate)-(2→4)]-(3-deoxy-α-D-manno-oct-2-ulopyranosylonate)-(2→4)-(3-deoxy-α-D-manno-oct-2-ulopyranosylonate)-(2→6)-2-deoxy-2-{[(3R)-3-hydroxytetradecanoyl]amino}-3-O-[(3R)-3-hydroxytetradecanoyl]-4-O-phosphono-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxytetradecanoyl]-2-{[(3R)-3-hydroxytetradecanoyl]amino}-1-O-phosphono-α-D-glucopyranose CMP-β-Kdo = CMP-3-deoxy-β-D-manno-oct-2-ulopyranosylonate |
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Other name(s): | Kdo transferase; waaA (gene name); kdtA (gene name); 3-deoxy-D-manno-oct-2-ulosonic acid transferase; 3-deoxy-manno-octulosonic acid transferase; (KDO)3-lipid IVA (2-4) 3-deoxy-D-manno-octulosonic acid transferase | ||||||||||||||
Systematic name: | CMP-3-deoxy-D-manno-oct-2-ulosonate:(Kdo)3-lipid IVA 3-deoxy-D-manno-oct-2-ulosonate transferase [(2→4) glycosidic bond-forming] | ||||||||||||||
Comments: | The enzyme from Chlamydia psittaci transfers four Kdo residues to lipid A, forming a branched tetrasaccharide with the structure α-Kdo-(2,8)-[α-Kdo-(2,4)]-α-Kdo-(2,4)-α-Kdo (cf. EC 2.4.99.12 [lipid IVA 3-deoxy-D-manno-octulosonic acid transferase], EC 2.4.99.13 [(Kdo)-lipid IVA 3-deoxy-D-manno-octulosonic acid transferase], and EC 2.4.99.14 [(Kdo)2-lipid IVA (2-8) 3-deoxy-D-manno-octulosonic acid transferase]). | ||||||||||||||
Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc | ||||||||||||||
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EC | 2.7.1.130 | ||||||||||||||
Accepted name: | tetraacyldisaccharide 4′-kinase | ||||||||||||||
Reaction: | ATP + a lipid A disaccharide = ADP + a lipid IVA | ||||||||||||||
For diagram of lipid IVA biosynthesis, click here | |||||||||||||||
Glossary: | a lipid A disaccharide = a dephospho-lipid IVA = 2-deoxy-2-{[(3R)-3-hydroxyacyl]amino}-3-O-[(3R)-3-hydroxyacyl]-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxyacyl]-2-{[(3R)-3-hydroxyacyl]amino}-1-O-phospho-α-D-glucopyranose a lipid IVA = 2-deoxy-2-{[(3R)-3-hydroxyacyl]amino}-3-O-[(3R)-3-hydroxyacyl]-4-O-phospho-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxyacyl]-2-{[(3R)-3-hydroxyacyl]amino}-1-O-phospho-α-D-glucopyranose |
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Other name(s): | lpxK (gene name); lipid-A 4′-kinase; ATP:2,2′,3,3′-tetrakis[(3R)-3-hydroxytetradecanoyl]-β-D-glucosaminyl-(1→6)-α-D-glucosaminyl-phosphate 4′-O-phosphotransferase | ||||||||||||||
Systematic name: | ATP:2-deoxy-2-{[(3R)-3-hydroxyacyl]amino}-3-O-[(3R)-3-hydroxyacyl]-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxyacyl]-2-{[(3R)-3-hydroxyacyl]amino}-1-O-phospho-α-D-glucopyranose 4′-O-phosphotransferase | ||||||||||||||
Comments: | Involved with EC 2.3.1.129 (acyl-[acyl-carrier-protein]—UDP-N-acetylglucosamine O-acyltransferase) and EC 2.4.1.182 (lipid-A-disaccharide synthase) in the biosynthesis of the phosphorylated glycolipid, lipid A, in the outer membrane of Gram-negative bacteria. | ||||||||||||||
Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc, PDB, CAS registry number: 107309-06-8 | ||||||||||||||
References: |
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EC | 2.7.1.166 | ||||||||||||||
Accepted name: | 3-deoxy-D-manno-octulosonic acid kinase | ||||||||||||||
Reaction: | α-Kdo-(2→6)-lipid IVA + ATP = 4-O-phospho-α-Kdo-(2→6)-lipid IVA + ADP | ||||||||||||||
Glossary: | (Kdo)-lipid IVA = α-Kdo-(2→6)-lipid IVA = (3-deoxy-α-D-manno-oct-2-ulopyranosylonate)-(2→6)-2-deoxy-2-{[(3R)-3-hydroxytetradecanoyl]amino}-3-O-[(3R)-3-hydroxytetradecanoyl]-4-O-phosphono-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxytetradecanoyl]-2-{[(3R)-3-hydroxytetradecanoyl]amino}-1-O-phosphono-α-D-glucopyranose (4-O-phospho-KDO)-lipid IVA = 4-O-phospho-α-Kdo-(2→6)-lipid IVA = (3-deoxy-4-O-phosphono-α-D-manno-oct-2-ulopyranosylonate)-(2→6)-2-deoxy-2-{[(3R)-3-hydroxytetradecanoyl]amino}-3-O-[(3R)-3-hydroxytetradecanoyl]-4-O-phosphono-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxytetradecanoyl]-2-{[(3R)-3-hydroxytetradecanoyl]amino}-1-O-phosphono-α-D-glucopyranose |
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Other name(s): | kdkA (gene name); Kdo kinase | ||||||||||||||
Systematic name: | ATP:(Kdo)-lipid IVA 3-deoxy-α-D-manno-oct-2-ulopyranose 4-phosphotransferase | ||||||||||||||
Comments: | The enzyme phosphorylates the 4-OH position of Kdo in (Kdo)-lipid IVA. | ||||||||||||||
Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc | ||||||||||||||
References: |
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EC | 2.7.4.29 | ||||||||||||||
Accepted name: | Kdo2-lipid A phosphotransferase | ||||||||||||||
Reaction: | ditrans-octacis-undecaprenyl diphosphate + α-D-Kdo-(2→4)-α-D-Kdo-(2→6)-lipid A = ditrans-octacis-undecaprenyl phosphate + α-D-Kdo-(2→4)-α-D-Kdo-(2→6)-lipid A 1-diphosphate | ||||||||||||||
Glossary: | lipid A = 2-deoxy-2-[(3R)-3-(tetradecanoyloxy)tetradecanamido]-3-O-[(3R)-3-(dodecanoyloxy)tetradecanoyl]-4-O-phospho-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxytetradecanoyl]-2-[(3R)-3-hydroxytetradecanamido]-α-D-glucopyranosyl phosphate lipid A 1-diphosphate = 2-deoxy-2-[(3R)-3-(tetradecanoyloxy)tetradecanamido]-3-O-[(3R)-3-(dodecanoyloxy)tetradecanoyl]-4-O-phospho-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxytetradecanoyl]-2-[(3R)-3-hydroxytetradecanamido]-α-D-glucopyranosyl diphosphate |
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Other name(s): | lipid A undecaprenyl phosphotransferase; LpxT; YeiU | ||||||||||||||
Systematic name: | ditrans-octacis-undecaprenyl-diphosphate:α-D-Kdo-(2→4)-α-D-Kdo-(2→6)-lipid-A phosphotransferase | ||||||||||||||
Comments: | An inner-membrane protein. The activity of the enzyme is regulated by PmrA. In vitro the enzyme can use diacylglycerol 3-diphosphate as the phosphate donor. | ||||||||||||||
Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc | ||||||||||||||
References: |
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EC | 2.7.4.30 | ||||||||||||||
Transferred entry: | lipid A phosphoethanolamine transferase. Now EC 2.7.8.43, lipid A phosphoethanolamine transferase | ||||||||||||||
EC | 2.7.8.42 | ||||||||||||||
Accepted name: | Kdo2-lipid A phosphoethanolamine 7′′-transferase | ||||||||||||||
Reaction: | (1) diacylphosphatidylethanolamine + α-D-Kdo-(2→4)-α-D-Kdo-(2→6)-lipid A = diacylglycerol + 7-O-[2-aminoethoxy(hydroxy)phosphoryl]-α-D-Kdo-(2→4)-α-D-Kdo-(2→6)-lipid A (2) diacylphosphatidylethanolamine + α-D-Kdo-(2→4)-α-D-Kdo-(2→6)-lipid IVA = diacylglycerol + 7-O-[2-aminoethoxy(hydroxy)phosphoryl]-α-D-Kdo-(2→4)-α-D-Kdo-(2→6)-lipid IVA |
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Glossary: | lipid A = 2-deoxy-2-[(3R)-3-(tetradecanoyloxy)tetradecanamido]-3-O-[(3R)-3-(dodecanoyloxy)tetradecanoyl]-4-O-phospho-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxytetradecanoyl]-2-[(3R)-3-hydroxytetradecanamido]-α-D-glucopyranosyl phosphate lipid IVA = 2-deoxy-2-[(3R)-3-hydroxytetradecanamido]-3-O-[(3R)-3-hydroxytetradecanoyl]-4-O-phospho-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxytetradecanoyl]-2-[(3R)-3-hydroxytetradecanamido]-α-D-glucopyranosyl phosphate |
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Other name(s): | eptB (gene name) | ||||||||||||||
Systematic name: | diacylphosphatidylethanolamine:α-D-Kdo-(2→4)-α-D-Kdo-(2→6)-lipid-A 7′′-phosphoethanolaminetransferase | ||||||||||||||
Comments: | The enzyme has been characterized from the bacterium Escherichia coli. It is activated by Ca2+ ions and is silenced by the sRNA MgrR. | ||||||||||||||
Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc | ||||||||||||||
References: |
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EC | 2.7.8.43 | ||||||||||||||
Accepted name: | lipid A phosphoethanolamine transferase | ||||||||||||||
Reaction: | (1) diacylphosphatidylethanolamine + lipid A = diacylglycerol + lipid A 1-(2-aminoethyl diphosphate) (2) diacylphosphatidylethanolamine + lipid A = diacylglycerol + lipid A 4′-(2-aminoethyl diphosphate) (3) diacylphosphatidylethanolamine + lipid A 1-(2-aminoethyl diphosphate) = diacylglycerol + lipid A 1,4′-bis(2-aminoethyl diphosphate) |
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Glossary: | lipid A (Campylobacter jejuni) = 2,3-dideoxy-2,3-bis[(3R)-3-(hexadecanoyloxy)tetradecanamido]-4-O-phospho-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxytetradecanoyl]-2-[(3R)-3-hydroxytetradecanamido]-α-D-glucopyranosyl phosphate lipid A (Escherichia coli) = 2-deoxy-2-[(3R)-3-(tetradecanoyloxy)tetradecanamido]-3-O-[(3R)-3-(dodecanoyloxy)tetradecanoyl]-4-O-phospho-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxytetradecanoyl]-2-[(3R)-3-hydroxytetradecanamido]-α-D-glucopyranosyl phosphate lipid A (Helicobacter pylori) = 2-deoxy-2-[(3R)-3-(octadecanoyloxy)octadecanamido]-4-O-phospho-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxyhexadecanoyl]-2-[(3R)-3-hydroxyoctadecanamido]-α-D-glucopyranosyl phosphate lipid A (Neisseria meningitidis) = 2-deoxy-3-O-[(3R)-3-hydroxydodecanoyl]-2-[(3R)-3-(dodecanoyloxy)tetradecanamido]-4-O-phospho-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxydodecanoyl]-2-[(3R)-3-(dodecanoyloxy)tetradecanamido]-α-D-glucopyranosyl phosphate lipid A 1-[(2-aminoethyl) diphosphate] = P1-(2-aminoethyl) P2-(2-deoxy-2-[(3R)-3-(tetradecanoyloxy)tetradecanamido]-3-O-[(3R)-3-(dodecanoyloxy)tetradecanoyl]-4-O-phospho-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxytetradecanoyl]-2-[(3R)-3-hydroxytetradecanamido]-α-D-glucopyranosyl) diphosphate lipid A 1,4′-bis(2-aminoethyl diphosphate) = P1-(2-aminoethyl) P2-(2-deoxy-2-[(3R)-3-(tetradecanoyloxy)tetradecanamido]-3-O-[(3R)-3-(dodecanoyloxy)tetradecanoyl]-4-O-(2-aminoethyldiphospho)-β-D-glucopyranosyl-(1→6)-2-deoxy-3-O-[(3R)-3-hydroxytetradecanoyl]-2-[(3R)-3-hydroxytetradecanamido]-α-D-glucopyranosyl) diphosphate |
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Other name(s): | lipid A PEA transferase; LptA | ||||||||||||||
Systematic name: | diacylphosphatidylethanolamine:lipid-A ethanolaminephosphotransferase | ||||||||||||||
Comments: | The enzyme adds one or two ethanolamine phosphate groups to lipid A giving a diphosphate, sometimes in combination with EC 2.4.2.43 (lipid IVA 4-amino-4-deoxy-L-arabinosyltransferase) giving products with 4-amino-4-deoxy-β-L-arabinose groups at the phosphates of lipid A instead of diphosphoethanolamine groups. It will also act on lipid IVA and Kdo2-lipid A. | ||||||||||||||
Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc | ||||||||||||||
References: |
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EC | 3.1.1.51 | ||||||||||||||
Accepted name: | phorbol-diester hydrolase | ||||||||||||||
Reaction: | phorbol 12,13-dibutanoate + H2O = phorbol 13-butanoate + butanoate | ||||||||||||||
For diagram of reaction, click here | |||||||||||||||
Other name(s): | diacylphorbate 12-hydrolase; diacylphorbate 12-hydrolase; phorbol-12,13-diester 12-ester hydrolase; PDEH | ||||||||||||||
Systematic name: | 12,13-diacylphorbate 12-acylhydrolase | ||||||||||||||
Comments: | Hydrolyses the 12-ester bond in a variety of 12,13-diacylphorbols (phorbol is a diterpenoid); this reaction inactivates the tumour promotor 12-O-tetradecanoylphorbol-13-acetate from croton oil. | ||||||||||||||
Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number: 81181-74-0 | ||||||||||||||
References: |
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EC | 3.6.1.54 | ||||||||||||||
Accepted name: | UDP-2,3-diacylglucosamine diphosphatase | ||||||||||||||
Reaction: | a UDP-2-N,3-O-bis[(3R)-3-hydroxyacyl]-α-D-glucosamine + H2O = a lipid X + UMP | ||||||||||||||
For diagram of lipid IVA biosynthesis, click here | |||||||||||||||
Glossary: | a lipid X = 2-N-[(3R)-3-hydroxyacyl]-3-O-[(3R)-3-hydroxyacyl]-α-D-glucosamine 1-phosphate = 2-N,3-O-bis[(3R)-3-hydroxyacyl]-α-D-glucosamine |
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Other name(s): | lpxH (gene name); UDP-2,3-diacylglucosamine hydrolase; UDP-2,3-diacylglucosamine pyrophosphatase; ybbF (gene name); UDP-2,3-bis[(3R)-3-hydroxymyristoyl]-α-D-glucosamine 2,3-bis[(3R)-3-hydroxymyristoyl]-β-D-glucosaminyl 1-phosphate phosphohydrolase (incorrect); UDP-2-N,3-O-bis[(3R)-3-hydroxytetradecanoyl]-α-D-glucosamine 2-N,3-O-bis[(3R)-3-hydroxytetradecanoyl]-α-D-glucosaminyl 1-phosphate phosphohydrolase | ||||||||||||||
Systematic name: | UDP-2-N,3-O-bis[(3R)-3-hydroxyacyl]-α-D-glucosamine 2-N,3-O-bis[(3R)-3-hydroxyacyl]-α-D-glucosamine-1-phosphate phosphohydrolase | ||||||||||||||
Comments: | The enzyme catalyses a step in the biosynthesis of lipid A. | ||||||||||||||
Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc, PDB | ||||||||||||||
References: |
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