lipopolysaccharide heptosyltransferase and similar proteins. Lipopolysaccharide heptosyltransferase (2.4.99.B6) is involved in the biosynthesis of lipooligosaccharide (LOS). Lipopolysaccharide (LPS) is a major component of the outer membrane of gram-negative bacteria. LPS heptosyltransferase transfers heptose molecules from ADP-heptose to 3-deoxy-D-manno-octulosonic acid (KDO), a part of the inner core component of LPS. This family also contains lipopolysaccharide 1,2-N-acetylglucosaminetransferase EC 2.4.1.56 and belongs to the GT-B structural superfamily of glycoslytransferases, which have characteristic N- and C-terminal domains each containing a typical Rossmann fold. The two domains have high structural homology despite minimal sequence homology. The large cleft that separates the two domains includes the catalytic center and permits a high degree of flexibility.

ADP-heptose:LPS heptosyltransferase [Cell wall/membrane/envelope biogenesis].

Glycosyltransferase family 9 (heptosyltransferase). Members of this family belong to glycosyltransferase family 9. Lipopolysaccharide is a major component of the outer leaflet of the outer membrane in Gram-negative bacteria. It is composed of three domains; lipid A, Core oligosaccharide and the O-antigen. All of these enzymes transfer heptose to the lipopolysaccharide core.

lipopolysaccharide heptosyltransferase III, putative. This family consists of examples of the putative ADP-heptose:LPS heptosyltransferase III, an enzyme of LPS inner core region biosynthesis. LPS, composed of lipid A, a core region, and O antigen, is found in the outer membrane of Gram-negative bacteria. This enzyme may be less widely distributed than heptosyltransferases I and II. [Cell envelope, Biosynthesis and degradation of surface polysaccharides and lipopolysaccharides]

lipopolysaccharide core biosynthesis protein; Provisional

Thecrystal structure of the glycosyl transferase family 9 from Veillonella parvula DSM 2008 [Veillonella parvula DSM 2008],3TOV_B The crystal structure of the glycosyl transferase family 9 from Veillonella parvula DSM 2008 [Veillonella parvula DSM 2008]

Structureof E. coli ADP-heptose lps heptosyltransferase II [Escherichia coli]

Chain6, Photosynthetic NDH subunit of subcomplex B1 [Hordeum vulgare subsp. spontaneum],7F9O_6 Chain 6, Photosynthetic NDH subunit of subcomplex B1 [Hordeum vulgare subsp. spontaneum]

E.coli heptosyltransferase WaaC. [Escherichia coli UTI89],2GT1_B E. coli heptosyltransferase WaaC. [Escherichia coli UTI89]

Thestructure of a ternary complex of E. coli WaaC [Escherichia coli],6DFE_B The structure of a ternary complex of E. coli WaaC [Escherichia coli]

Lipopolysaccharide core heptosyltransferase RfaQ OS=Escherichia coli OX=562 GN=rfaQ PE=1 SV=1

Lipopolysaccharide core heptosyltransferase RfaQ OS=Escherichia coli (strain K12) OX=83333 GN=rfaQ PE=3 SV=2

ADP-heptose--LPS heptosyltransferase 2 OS=Haemophilus influenzae (strain ATCC 51907 / DSM 11121 / KW20 / Rd) OX=71421 GN=rfaF PE=3 SV=1

ADP-heptose--LPS heptosyltransferase 2 OS=Escherichia coli (strain K12) OX=83333 GN=rfaF PE=1 SV=1

ADP-heptose--LPS heptosyltransferase 2 OS=Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720) OX=99287 GN=rfaF PE=3 SV=1