The Enzyme Database

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EC 2.4.99.12     
Accepted name: lipid IVA 3-deoxy-D-manno-octulosonic acid transferase
Reaction: CMP-β-Kdo + a lipid IVA + CMP-β-Kdo = CMP + an α-Kdo-(2→6)-[lipid IVA]
For diagram of Kdo4-Lipid IVA biosynthesis, click here
Glossary: CMP-β-Kdo = CMP-3-deoxy-β-D-manno-octulosonate = CMP-3-deoxy-β-D-manno-oct-2-ulopyranosylonate
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
Other name(s): waaA (gene name); kdtA (gene name); 3-deoxy-D-manno-oct-2-ulosonic acid transferase; 3-deoxy-manno-octulosonic acid transferase; lipid IVA KDO transferase; CMP-3-deoxy-D-manno-oct-2-ulosonate:lipid IVA 3-deoxy-D-manno-oct-2-ulosonate transferase; KDO transferase
Systematic name: CMP-3-deoxy-β-D-manno-oct-2-ulosonate:[lipid IVA] 3-deoxy-D-manno-oct-2-ulosonate transferase (configuration-inverting)
Comments: The enzyme from Escherichia coli is bifunctional and transfers two 3-deoxy-D-manno-oct-2-ulosonate residues to lipid IVA (cf. EC 2.4.99.13 [(Kdo)-lipid IVA 3-deoxy-D-manno-octulosonic acid transferase]) [1]. The monofunctional enzymes from Bordetella pertusis, Aquifex aeolicus and Haemophilus influenzae catalyse the transfer of a single 3-deoxy-D-manno-oct-2-ulosonate residue from CMP-3-deoxy-D-manno-oct-2-ulosonate to lipid IVA [2-4]. The enzymes from Chlamydia transfer three or more 3-deoxy-D-manno-oct-2-ulosonate residues and generate genus-specific epitopes [5].
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
References:
1.  Belunis, C.J. and Raetz, C.R. Biosynthesis of endotoxins. Purification and catalytic properties of 3-deoxy-D-manno-octulosonic acid transferase from Escherichia coli. J. Biol. Chem. 267 (1992) 9988–9997. [PMID: 1577828]
2.  Isobe, T., White, K.A., Allen, A.G., Peacock, M., Raetz, C.R. and Maskell, D.J. Bordetella pertussis waaA encodes a monofunctional 2-keto-3-deoxy-D-manno-octulosonic acid transferase that can complement an Escherichia coli waaA mutation. J. Bacteriol. 181 (1999) 2648–2651. [DOI] [PMID: 10198035]
3.  Mamat, U., Schmidt, H., Munoz, E., Lindner, B., Fukase, K., Hanuszkiewicz, A., Wu, J., Meredith, T.C., Woodard, R.W., Hilgenfeld, R., Mesters, J.R. and Holst, O. WaaA of the hyperthermophilic bacterium Aquifex aeolicus is a monofunctional 3-deoxy-D-manno-oct-2-ulosonic acid transferase involved in lipopolysaccharide biosynthesis. J. Biol. Chem. 284 (2009) 22248–22262. [DOI] [PMID: 19546212]
4.  White, K.A., Kaltashov, I.A., Cotter, R.J. and Raetz, C.R. A mono-functional 3-deoxy-D-manno-octulosonic acid (Kdo) transferase and a Kdo kinase in extracts of Haemophilus influenzae. J. Biol. Chem. 272 (1997) 16555–16563. [DOI] [PMID: 9195966]
5.  Lobau, S., Mamat, U., Brabetz, W. and Brade, H. Molecular cloning, sequence analysis, and functional characterization of the lipopolysaccharide biosynthetic gene kdtA encoding 3-deoxy-α-D-manno-octulosonic acid transferase of Chlamydia pneumoniae strain TW-183. Mol. Microbiol. 18 (1995) 391–399. [DOI] [PMID: 8748024]
[EC 2.4.99.12 created 2010, modified 2011]
 
 
EC 2.4.99.13     
Accepted name: (Kdo)-lipid IVA 3-deoxy-D-manno-octulosonic acid transferase
Reaction: α-Kdo-(2→6)-lipid IVA + CMP-β-Kdo = α-Kdo-(2→4)-α-Kdo-(2→6)-lipid IVA + CMP
For diagram of Kdo4-Lipid IVA biosynthesis, click here
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
(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
CMP-β-Kdo = CMP-3-deoxy-β-D-manno-oct-2-ulopyranosylonate
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)-lipid IVA 3-deoxy-D-manno-octulosonic acid transferase
Systematic name: CMP-3-deoxy-D-manno-oct-2-ulosonate:(Kdo)-lipid IVA 3-deoxy-D-manno-oct-2-ulosonate transferase
Comments: The bifunctional enzyme from Escherichia coli transfers two 3-deoxy-D-manno-oct-2-ulosonate residues to lipid IVA (cf. EC 2.4.99.12 [lipid IVA 3-deoxy-D-manno-octulosonic acid transferase]) [1]. The enzymes from Chlamydia transfer three or more 3-deoxy-D-manno-oct-2-ulosonate residues and generate genus-specific epitopes [4].
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
References:
1.  Belunis, C.J. and Raetz, C.R. Biosynthesis of endotoxins. Purification and catalytic properties of 3-deoxy-D-manno-octulosonic acid transferase from Escherichia coli. J. Biol. Chem. 267 (1992) 9988–9997. [PMID: 1577828]
2.  Lobau, S., Mamat, U., Brabetz, W. and Brade, H. Molecular cloning, sequence analysis, and functional characterization of the lipopolysaccharide biosynthetic gene kdtA encoding 3-deoxy-α-D-manno-octulosonic acid transferase of Chlamydia pneumoniae strain TW-183. Mol. Microbiol. 18 (1995) 391–399. [DOI] [PMID: 8748024]
[EC 2.4.99.13 created 2010, modified 2011]
 
 
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
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:
1.  Lobau, S., Mamat, U., Brabetz, W. and Brade, H. Molecular cloning, sequence analysis, and functional characterization of the lipopolysaccharide biosynthetic gene kdtA encoding 3-deoxy-α-D-manno-octulosonic acid transferase of Chlamydia pneumoniae strain TW-183. Mol. Microbiol. 18 (1995) 391–399. [DOI] [PMID: 8748024]
2.  Mamat, U., Baumann, M., Schmidt, G. and Brade, H. The genus-specific lipopolysaccharide epitope of Chlamydia is assembled in C. psittaci and C. trachomatis by glycosyltransferases of low homology. Mol. Microbiol. 10 (1993) 935–941. [DOI] [PMID: 7523826]
3.  Belunis, C.J., Mdluli, K.E., Raetz, C.R. and Nano, F.E. A novel 3-deoxy-D-manno-octulosonic acid transferase from Chlamydia trachomatis required for expression of the genus-specific epitope. J. Biol. Chem. 267 (1992) 18702–18707. [PMID: 1382060]
[EC 2.4.99.14 created 2010, modified 2011]
 
 
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
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
References:
1.  Brabetz, W., Lindner, B. and Brade, H. Comparative analyses of secondary gene products of 3-deoxy-D-manno-oct-2-ulosonic acid transferases from Chlamydiaceae in Escherichia coli K-12. Eur. J. Biochem. 267 (2000) 5458–5465. [DOI] [PMID: 10951204]
2.  Holst, O., Bock, K., Brade, L. and Brade, H. The structures of oligosaccharide bisphosphates isolated from the lipopolysaccharide of a recombinant Escherichia coli strain expressing the gene gseA [3-deoxy-D-manno-octulopyranosonic acid (Kdo) transferase] of Chlamydia psittaci 6BC. Eur. J. Biochem. 229 (1995) 194–200. [DOI] [PMID: 7744029]
[EC 2.4.99.15 created 2010, modified 2011]
 
 


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