glycosyltransferase family protein may synthesize oligosaccharides, polysaccharides, and glycoconjugates by transferring the sugar moiety from an activated nucleotide-sugar donor to an acceptor molecule, which may be a growing oligosaccharide, a lipid, or a protein
Glycosyltransferase family A (GT-A) includes diverse families of glycosyl transferases with a ...
91-373
2.85e-176
Glycosyltransferase family A (GT-A) includes diverse families of glycosyl transferases with a common GT-A type structural fold; Glycosyltransferases (GTs) are enzymes that synthesize oligosaccharides, polysaccharides, and glycoconjugates by transferring the sugar moiety from an activated nucleotide-sugar donor to an acceptor molecule, which may be a growing oligosaccharide, a lipid, or a protein. Based on the stereochemistry of the donor and acceptor molecules, GTs are classified as either retaining or inverting enzymes. To date, all GT structures adopt one of two possible folds, termed GT-A fold and GT-B fold. This hierarchy includes diverse families of glycosyl transferases with a common GT-A type structural fold, which has two tightly associated beta/alpha/beta domains that tend to form a continuous central sheet of at least eight beta-strands. The majority of the proteins in this superfamily are Glycosyltransferase family 2 (GT-2) proteins. But it also includes families GT-43, GT-6, GT-8, GT13 and GT-7; which are evolutionarily related to GT-2 and share structure similarities.
The actual alignment was detected with superfamily member pfam03414:
Pssm-ID: 472172 Cd Length: 289 Bit Score: 491.59 E-value: 2.85e-176
Glycosyltransferase family 6 comprises enzymes responsible for the production of the human ABO ...
101-372
2.71e-169
Glycosyltransferase family 6 comprises enzymes responsible for the production of the human ABO blood group antigens; Glycosyltransferase family 6, GT_6, comprises enzymes with three known activities: alpha-1,3-galactosyltransferase, alpha-1,3 N-acetylgalactosaminyltransferase, and alpha-galactosyltransferase. UDP-galactose:beta-galactosyl alpha-1,3-galactosyltransferase (alpha3GT) catalyzes the transfer of galactose from UDP-alpha-d-galactose into an alpha-1,3 linkage with beta-galactosyl groups in glycoconjugates. The enzyme exists in most mammalian species but is absent from humans, apes, and old world monkeys as a result of the mutational inactivation of the gene. The alpha-1,3 N-acetylgalactosaminyltransferase and alpha-galactosyltransferase are responsible for the production of the human ABO blood group antigens. A N-acetylgalactosaminyltransferases use a UDP-GalNAc donor to convert the H-antigen acceptor to the A antigen, whereas a galactosyltransferase uses a UDP-galactose donor to convert the H-antigen acceptor to the B antigen. Alpha-1,3 N-acetylgalactosaminyltransferase and alpha-galactosyltransferase differ only in the identity of four critical amino acid residues.
Pssm-ID: 133008 Cd Length: 271 Bit Score: 472.97 E-value: 2.71e-169
Glycosyltransferase family 6 comprises enzymes responsible for the production of the human ABO ...
101-372
2.71e-169
Glycosyltransferase family 6 comprises enzymes responsible for the production of the human ABO blood group antigens; Glycosyltransferase family 6, GT_6, comprises enzymes with three known activities: alpha-1,3-galactosyltransferase, alpha-1,3 N-acetylgalactosaminyltransferase, and alpha-galactosyltransferase. UDP-galactose:beta-galactosyl alpha-1,3-galactosyltransferase (alpha3GT) catalyzes the transfer of galactose from UDP-alpha-d-galactose into an alpha-1,3 linkage with beta-galactosyl groups in glycoconjugates. The enzyme exists in most mammalian species but is absent from humans, apes, and old world monkeys as a result of the mutational inactivation of the gene. The alpha-1,3 N-acetylgalactosaminyltransferase and alpha-galactosyltransferase are responsible for the production of the human ABO blood group antigens. A N-acetylgalactosaminyltransferases use a UDP-GalNAc donor to convert the H-antigen acceptor to the A antigen, whereas a galactosyltransferase uses a UDP-galactose donor to convert the H-antigen acceptor to the B antigen. Alpha-1,3 N-acetylgalactosaminyltransferase and alpha-galactosyltransferase differ only in the identity of four critical amino acid residues.
Pssm-ID: 133008 Cd Length: 271 Bit Score: 472.97 E-value: 2.71e-169
Database: CDSEARCH/cdd Low complexity filter: no Composition Based Adjustment: yes E-value threshold: 0.01
References:
Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
of the residues that compose this conserved feature have been mapped to the query sequence.
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(labeled illustration) Standard Display shows only the best scoring domain model from each source, in each hit category listed below for each region on the query sequence.
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