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.

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.

Vibrio cholerae WavL and similar sequences. This family is most closely related to the GT4 family of glycosyltransferases. WavL in Vibrio cholerae has been shown to be involved in the biosynthesis of the lipopolysaccharide core.

Glycosyl transferases group 1.

Glycosyl transferases group 1. Mutations in this domain of PIGA lead to disease (Paroxysmal Nocturnal haemoglobinuria). Members of this family transfer activated sugars to a variety of substrates, including glycogen, Fructose-6-phosphate and lipopolysaccharides. Members of this family transfer UDP, ADP, GDP or CMP linked sugars. The eukaryotic glycogen synthases may be distant members of this family.

Sucrose-phosphatesynthase (tll1590) from Thermosynechococcus elongatus [Thermosynechococcus vestitus],6KIH_B Sucrose-phosphate synthase (tll1590) from Thermosynechococcus elongatus [Thermosynechococcus vestitus],6KIH_C Sucrose-phosphate synthase (tll1590) from Thermosynechococcus elongatus [Thermosynechococcus vestitus],6KIH_D Sucrose-phosphate synthase (tll1590) from Thermosynechococcus elongatus [Thermosynechococcus vestitus],6KIH_E Sucrose-phosphate synthase (tll1590) from Thermosynechococcus elongatus [Thermosynechococcus vestitus],6KIH_F Sucrose-phosphate synthase (tll1590) from Thermosynechococcus elongatus [Thermosynechococcus vestitus],6KIH_G Sucrose-phosphate synthase (tll1590) from Thermosynechococcus elongatus [Thermosynechococcus vestitus],6KIH_H Sucrose-phosphate synthase (tll1590) from Thermosynechococcus elongatus [Thermosynechococcus vestitus],6KIH_I Sucrose-phosphate synthase (tll1590) from Thermosynechococcus elongatus [Thermosynechococcus vestitus],6KIH_J Sucrose-phosphate synthase (tll1590) from Thermosynechococcus elongatus [Thermosynechococcus vestitus],6KIH_K Sucrose-phosphate synthase (tll1590) from Thermosynechococcus elongatus [Thermosynechococcus vestitus],6KIH_L Sucrose-phosphate synthase (tll1590) from Thermosynechococcus elongatus [Thermosynechococcus vestitus]

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]

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

Phosphatidyl-myo-inositol mannosyltransferase OS=Mycobacterium leprae (strain TN) OX=272631 GN=pimA PE=3 SV=1

Sulfoquinovosyl transferase SQD2 OS=Arabidopsis thaliana OX=3702 GN=SQD2 PE=1 SV=1

GDP-mannose-dependent alpha-mannosyltransferase OS=Mycolicibacterium smegmatis (strain ATCC 700084 / mc(2)155) OX=246196 GN=mgtA PE=3 SV=1

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