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].

Glycosyl transferases group 1.

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.

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.

BshAfrom Staphylococcus aureus complexed with UDP [Staphylococcus aureus]

ChainA, Glycosyltransferase [Staphylococcus aureus subsp. aureus CN1]

Crystalstructure of Corynebacterium glutamicum PimB' in complex with GDP-Man (triclinic crystal form) [Corynebacterium glutamicum],3OKA_B Crystal structure of Corynebacterium glutamicum PimB' in complex with GDP-Man (triclinic crystal form) [Corynebacterium glutamicum]

Crystalstructure of Corynebacterium glutamicum PimB' bound to GDP (orthorhombic crystal form) [Corynebacterium glutamicum],3OKP_A Crystal structure of Corynebacterium glutamicum PimB' bound to GDP-Man (orthorhombic crystal form) [Corynebacterium glutamicum]

ChainA, Alr3699 protein [Nostoc sp. PCC 7120 = FACHB-418],4XSO_B Chain B, Alr3699 protein [Nostoc sp. PCC 7120 = FACHB-418],4XSP_A Chain A, Alr3699 protein [Nostoc sp. PCC 7120 = FACHB-418],4XSP_B Chain B, Alr3699 protein [Nostoc sp. PCC 7120 = FACHB-418],4XSR_A Chain A, Alr3699 protein [Nostoc sp. PCC 7120 = FACHB-418],4XSR_B Chain B, Alr3699 protein [Nostoc sp. PCC 7120 = FACHB-418],4XSU_A Chain A, Alr3699 protein [Nostoc sp. PCC 7120 = FACHB-418],4XSU_B Chain B, Alr3699 protein [Nostoc sp. PCC 7120 = FACHB-418]

Phosphatidylinositol N-acetylglucosaminyltransferase gpi3 subunit OS=Schizosaccharomyces pombe (strain 972 / ATCC 24843) OX=284812 GN=gpi3 PE=3 SV=1

Phosphatidylinositol N-acetylglucosaminyltransferase GPI3 subunit OS=Saccharomyces cerevisiae (strain RM11-1a) OX=285006 GN=SPT14 PE=3 SV=1

Phosphatidylinositol N-acetylglucosaminyltransferase GPI3 subunit OS=Saccharomyces cerevisiae (strain ATCC 204508 / S288c) OX=559292 GN=SPT14 PE=1 SV=4

Phosphatidylinositol N-acetylglucosaminyltransferase GPI3 subunit OS=Saccharomyces cerevisiae (strain YJM789) OX=307796 GN=SPT14 PE=3 SV=1

Phosphatidylinositol N-acetylglucosaminyltransferase GPI3 subunit OS=Saccharomyces cerevisiae (strain AWRI1631) OX=545124 GN=SPT14 PE=3 SV=2