Biology:(KDO)2-lipid IVA (2-8) 3-deoxy-D-manno-octulosonic acid transferase

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Short description: Class of enzymes
(KDO)2-lipid IVA (2-8) 3-deoxy-D-manno-octulosonic acid transferase
Identifiers
EC number2.4.99.14
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum

(KDO)2-lipid IVA (2-8) 3-deoxy-D-manno-octulosonic acid transferase (EC 2.4.99.14, KDO transferase, waaA (gene), kdtA (gene), 3-deoxy-D-manno-oct-2-ulosonic acid transferase, 3-deoxy-manno-octulosonic acid transferase) is an enzyme with 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).[1][2][3] This enzyme catalyses the following chemical reaction

alpha-Kdo-(2->4)-alpha-Kdo-(2->6)-lipid IVA + CMP-alpha-Kdo [math]\displaystyle{ \rightleftharpoons }[/math] alpha-Kdo-(2->8)-alpha-Kdo-(2->4)-alpha-Kdo-(2->6)-lipid IVA + CMP

The enzymes from Chlamydia transfer three or more 3-deoxy-D-manno-oct-2-ulosonate residues and generate genus-specific epitopes.

References

  1. "Molecular cloning, sequence analysis, and functional characterization of the lipopolysaccharide biosynthetic gene kdtA encoding 3-deoxy-alpha-D-manno-octulosonic acid transferase of Chlamydia pneumoniae strain TW-183". Molecular Microbiology 18 (3): 391–9. November 1995. doi:10.1111/j.1365-2958.1995.mmi_18030391.x. PMID 8748024. 
  2. "The genus-specific lipopolysaccharide epitope of Chlamydia is assembled in C. psittaci and C. trachomatis by glycosyltransferases of low homology". Molecular Microbiology 10 (5): 935–41. December 1993. doi:10.1111/j.1365-2958.1993.tb00965.x. PMID 7523826. 
  3. "A novel 3-deoxy-D-manno-octulosonic acid transferase from Chlamydia trachomatis required for expression of the genus-specific epitope". The Journal of Biological Chemistry 267 (26): 18702–7. September 1992. PMID 1382060. 

External links