phosphatidyl-myo-inositol mannosyltransferase. This family is most closely related to the GT4 family of glycosyltransferases and named after PimA in Propionibacterium freudenreichii, which is involved in the biosynthesis of phosphatidyl-myo-inositol mannosides (PIM) which are early precursors in the biosynthesis of lipomannans (LM) and lipoarabinomannans (LAM), and catalyzes the addition of a mannosyl residue from GDP-D-mannose (GDP-Man) to the position 2 of the carrier lipid phosphatidyl-myo-inositol (PI) to generate a phosphatidyl-myo-inositol bearing an alpha-1,2-linked mannose residue (PIM1). Glycosyltransferases catalyze the transfer of sugar moieties from activated donor molecules to specific acceptor molecules, forming glycosidic bonds. The acceptor molecule can be a lipid, a protein, a heterocyclic compound, or another carbohydrate residue. This group of glycosyltransferases is most closely related to the previously defined glycosyltransferase family 1 (GT1). The members of this family may transfer UDP, ADP, GDP, or CMP linked sugars. The diverse enzymatic activities among members of this family reflect a wide range of biological functions. The protein structure available for this family has the GTB topology, one of the two protein topologies observed for nucleotide-sugar-dependent glycosyltransferases. GTB proteins have distinct 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. The members of this family are found mainly in certain bacteria and archaea.

Glycosyltransferase involved in cell wall bisynthesis [Cell wall/membrane/envelope biogenesis].

glycosyltransferases MtfB, WbpX, and similar proteins. This family is most closely related to the GT4 family of glycosyltransferases. MtfB (mannosyltransferase B) in E. coli has been shown to direct the growth of the O9-specific polysaccharide chain. It transfers two mannoses into the position 3 of the previously synthesized polysaccharide.

family 4 and family 28 glycosyltransferases similar to Klebsiella WabH. This family is most closely related to the GT1 family of glycosyltransferases. WabH in Klebsiella pneumoniae has been shown to transfer a GlcNAc residue from UDP-GlcNAc onto the acceptor GalUA residue in the cellular outer core.

capsular polysaccharide biosynthesis glycosyltransferase CapM and similar proteins. This family is most closely related to the GT4 family of glycosyltransferases. CapM in Staphylococcus aureus is required for the synthesis of type 1 capsular polysaccharides.

Crystalstructure of phosphatidyl mannosyltransferase PimA [Mycolicibacterium smegmatis MC2 155],4NC9_A Crystal structure of phosphatidyl mannosyltransferase PimA [Mycolicibacterium smegmatis MC2 155],4NC9_B Crystal structure of phosphatidyl mannosyltransferase PimA [Mycolicibacterium smegmatis MC2 155],4NC9_C Crystal structure of phosphatidyl mannosyltransferase PimA [Mycolicibacterium smegmatis MC2 155],4NC9_D Crystal structure of phosphatidyl mannosyltransferase PimA [Mycolicibacterium smegmatis MC2 155]

CrystalStructure of phosphatidylinositol mannosyltransferase (PimA) from Mycobacterium smegmatis in complex with GDP-Man [Mycolicibacterium smegmatis MC2 155],2GEK_A Crystal Structure of phosphatidylinositol mannosyltransferase (PimA) from Mycobacterium smegmatis in complex with GDP [Mycolicibacterium smegmatis MC2 155]

glycosyltransferasein LPS biosynthesis [Salmonella enterica subsp. enterica serovar Typhimurium str. LT2],6Y6G_A Chain A, Lipopolysaccharide 1,6-galactosyltransferase [Salmonella enterica subsp. enterica serovar Typhimurium str. LT2]

glycosyltransferaseLPS biosynthesis in complex with UDP [Salmonella enterica subsp. enterica serovar Typhimurium str. LT2]

ChainA, Lipopolysaccharide 1,6-galactosyltransferase [Salmonella enterica subsp. enterica serovar Typhimurium str. LT2]

GDP-mannose:cellobiosyl-diphosphopolyprenol alpha-mannosyltransferase OS=Xanthomonas oryzae pv. oryzae (strain PXO99A) OX=360094 GN=gumH PE=3 SV=1

Putative glycosyltransferase EpsF OS=Bacillus subtilis (strain 168) OX=224308 GN=epsF PE=2 SV=1

2-deoxystreptamine N-acetyl-D-glucosaminyltransferase OS=Streptomyces fradiae OX=1906 GN=neoD PE=1 SV=1

GDP-mannose:cellobiosyl-diphosphopolyprenol alpha-mannosyltransferase OS=Xanthomonas campestris OX=339 GN=gumH PE=1 SV=1

Phosphatidyl-myo-inositol mannosyltransferase OS=Mycolicibacterium smegmatis (strain ATCC 700084 / mc(2)155) OX=246196 GN=pimA PE=1 SV=1