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].

putative colanic acid biosynthesis glycosyl transferase WcaC and similar proteins. This family is most closely related to the GT4 family of glycosyltransferases. Escherichia coli WcaC has been predicted to function in colanic acid biosynthesis. WcfI in Bacteroides fragilis has been shown to be involved in the capsular polysaccharide biosynthesis.

sucrose-phosphate synthase and similar proteins. This family is most closely related to the GT4 family of glycosyltransferases. The sucrose-phosphate synthases in this family may be unique to plants and photosynthetic bacteria. This enzyme catalyzes the synthesis of sucrose 6-phosphate from fructose 6-phosphate and uridine 5'-diphosphate-glucose, a key regulatory step of sucrose metabolism. The activity of this enzyme is regulated by phosphorylation and moderated by the concentration of various metabolites and light.

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.

CrystalStructure of a family GT4 glycosyltransferase from Bacillus anthracis ORF BA1558. [Bacillus anthracis str. Ames],2JJM_B Crystal Structure of a family GT4 glycosyltransferase from Bacillus anthracis ORF BA1558. [Bacillus anthracis str. Ames],2JJM_C Crystal Structure of a family GT4 glycosyltransferase from Bacillus anthracis ORF BA1558. [Bacillus anthracis str. Ames],2JJM_D Crystal Structure of a family GT4 glycosyltransferase from Bacillus anthracis ORF BA1558. [Bacillus anthracis str. Ames],2JJM_E Crystal Structure of a family GT4 glycosyltransferase from Bacillus anthracis ORF BA1558. [Bacillus anthracis str. Ames],2JJM_F Crystal Structure of a family GT4 glycosyltransferase from Bacillus anthracis ORF BA1558. [Bacillus anthracis str. Ames],2JJM_G Crystal Structure of a family GT4 glycosyltransferase from Bacillus anthracis ORF BA1558. [Bacillus anthracis str. Ames],2JJM_H Crystal Structure of a family GT4 glycosyltransferase from Bacillus anthracis ORF BA1558. [Bacillus anthracis str. Ames],2JJM_I Crystal Structure of a family GT4 glycosyltransferase from Bacillus anthracis ORF BA1558. [Bacillus anthracis str. Ames],2JJM_J Crystal Structure of a family GT4 glycosyltransferase from Bacillus anthracis ORF BA1558. [Bacillus anthracis str. Ames],2JJM_K Crystal Structure of a family GT4 glycosyltransferase from Bacillus anthracis ORF BA1558. [Bacillus anthracis str. Ames],2JJM_L Crystal Structure of a family GT4 glycosyltransferase from Bacillus anthracis ORF BA1558. [Bacillus anthracis str. Ames]

CrystalStructure of the Glycosyltransferase BaBshA bound with UDP and L-malate [Bacillus anthracis],3MBO_B Crystal Structure of the Glycosyltransferase BaBshA bound with UDP and L-malate [Bacillus anthracis],3MBO_C Crystal Structure of the Glycosyltransferase BaBshA bound with UDP and L-malate [Bacillus anthracis],3MBO_D Crystal Structure of the Glycosyltransferase BaBshA bound with UDP and L-malate [Bacillus anthracis],3MBO_E Crystal Structure of the Glycosyltransferase BaBshA bound with UDP and L-malate [Bacillus anthracis],3MBO_F Crystal Structure of the Glycosyltransferase BaBshA bound with UDP and L-malate [Bacillus anthracis],3MBO_G Crystal Structure of the Glycosyltransferase BaBshA bound with UDP and L-malate [Bacillus anthracis],3MBO_H Crystal Structure of the Glycosyltransferase BaBshA bound with UDP and L-malate [Bacillus anthracis]

ChainA, Glycosyltransferase [Staphylococcus aureus subsp. aureus CN1]

BshAfrom Staphylococcus aureus complexed with UDP [Staphylococcus aureus]

N-acetyl-alpha-D-glucosaminyl L-malate synthase OS=Bacillus anthracis OX=1392 GN=bshA PE=1 SV=1

Uncharacterized glycosyltransferase MJ1178 OS=Methanocaldococcus jannaschii (strain ATCC 43067 / DSM 2661 / JAL-1 / JCM 10045 / NBRC 100440) OX=243232 GN=MJ1178 PE=3 SV=1