Entry
Name
lipopolysaccharide 3-alpha-galactosyltransferase;
UDP-galactose:lipopolysaccharide alpha,3-galactosyltransferase;
UDP-galactose:polysaccharide galactosyltransferase;
uridine diphosphate galactose:lipopolysaccharide alpha-3-galactosyltransferase;
uridine diphosphogalactose-lipopolysaccharide alpha,3-galactosyltransferase;
UDP-galactose:lipopolysaccharide 3-alpha-D-galactosyltransferase
Class
Transferases;
Glycosyltransferases;
Hexosyltransferases
BRITE hierarchy
Sysname
UDP-alpha-D-galactose:lipopolysaccharide 3-alpha-D-galactosyltransferase
Reaction(IUBMB)
UDP-alpha-D-galactose + lipopolysaccharide = UDP + 3-alpha-D-galactosyl-[lipopolysaccharide glucose] [RN:
R01997 ]
Reaction(KEGG)
Substrate
UDP-alpha-D-galactose [CPD:
C00052 ];
lipopolysaccharide [CPD:
C00338 ]
Product
UDP [CPD:
C00015 ];
3-alpha-D-galactosyl-[lipopolysaccharide glucose] [CPD:
C04473 ]
Comment
Transfers alpha-D-galactosyl residues to D-glucose in the partially completed core of lipopolysaccharide [cf. EC
2.4.1.56 (lipopolysaccharide N-acetylglucosaminyltransferase), EC
2.4.1.58 (lipopolysaccharide glucosyltransferase I) and EC
2.4.1.73 (lipopolysaccharide glucosyltransferase II)].
History
EC 2.4.1.44 created 1972, modified 2002
Orthology
K03278 UDP-D-galactose:(glucosyl)LPS alpha-1,3-D-galactosyltransferase
Genes
KIE : NCTC12125_03936(rfaJ_1)
AAPC : QG404_00670 QG404_01675(waaO) QG404_06615
» show all
Taxonomy
Reference
Authors
Endo A, Rothfield L.
Title
Studies of a phospholipid-requiring bacterial enzyme. I. Purification and properties of uridine diphosphate galactose: lipopolysaccharide alpha-3-galactosyl transferase.
Journal
Reference
Authors
Wollin R, Creeger ES, Rothfield LI, Stocker BA, Lindberg AA.
Title
Salmonella typhimurium mutants defective in UDP-D-galactose:lipopolysaccharide alpha 1,6-D-galactosyltransferase. Structural, immunochemical, and enzymologic studies of rfaB mutants.
Journal
J Biol Chem 258:3769-74 (1983)
Other DBs
ExplorEnz - The Enzyme Database: 2.4.1.44
ExPASy - ENZYME nomenclature database: 2.4.1.44