2,3,2'3'-tetrakis(beta-hydroxymyristoyl)-D-glucosaminyl-1,6-beta-D-glucosamine 1,4'-bisphosphate is a member of the chemical class known as Dihexoses. These are disaccharides containing two hexose carbohydrates. Lipid IV(A) is involved in KDO metabolism. The enzyme is a single polypeptide that catalyzes the transfer of two KDO residues to a tetraacyldisaccharide-1,4'-bisphosphate precursor of lipid A, designated lipid IVA (Belunis, C. (PMID 7499229 ) E. coli KdtA (EcKdtA) is a bifunctional enzyme that transfers two KDO units from two CMP-KDO molecules to lipid IV(A). (PMID 20394418 ) The analog, KDO-lipid IVA, functions as an acceptor, but is mannosylated at less than 1% the rate of KDO2-lipid IVA. (PMID 9446588 )
Belongs to the class of organic compounds known as 1-acylglycerol-3-phosphates. These are lysophosphatidic acids where the glycerol is esterified with a fatty acid at O-1 position.
Belunis CJ, Clementz T, Carty SM, Raetz CR: Inhibition of lipopolysaccharide biosynthesis and cell growth following inactivation of the kdtA gene in Escherichia coli. J Biol Chem. 1995 Nov 17;270(46):27646-52. doi: 10.1074/jbc.270.46.27646. [PubMed:7499229 ]
Kadrmas JL, Raetz CR: Enzymatic synthesis of lipopolysaccharide in Escherichia coli. Purification and properties of heptosyltransferase i. J Biol Chem. 1998 Jan 30;273(5):2799-807. doi: 10.1074/jbc.273.5.2799. [PubMed:9446588 ]
Chung HS, Raetz CR: Interchangeable domains in the Kdo transferases of Escherichia coli and Haemophilus influenzae. Biochemistry. 2010 May 18;49(19):4126-37. doi: 10.1021/bi100343e. [PubMed:20394418 ]