glycosyltransferase family 8 protein catalyzes the transfer of sugar moieties from activated donor molecules to specific acceptor molecules, forming glycosidic bonds; similar to Escherichia coli lipopolysaccharide 1,2-glucosyltransferase, which adds the glucose(II) group on the galactose(I) group of LPS
A4GalT_like proteins catalyze the addition of galactose or glucose residues to the ...
32-265
1.07e-67
A4GalT_like proteins catalyze the addition of galactose or glucose residues to the lipooligosaccharide (LOS) or lipopolysaccharide (LPS) of the bacterial cell surface; The members of this family of glycosyltransferases catalyze the addition of galactose or glucose residues to the lipooligosaccharide (LOS) or lipopolysaccharide (LPS) of the bacterial cell surface. The enzymes exhibit broad substrate specificities. The known functions found in this family include: Alpha-1,4-galactosyltransferase, LOS-alpha-1,3-D-galactosyltransferase, UDP-glucose:(galactosyl) LPS alpha1,2-glucosyltransferase, UDP-galactose: (glucosyl) LPS alpha1,2-galactosyltransferase, and UDP-glucose:(glucosyl) LPS alpha1,2-glucosyltransferase. Alpha-1,4-galactosyltransferase from N. meningitidis adds an alpha-galactose from UDP-Gal (the donor) to a terminal lactose (the acceptor) of the LOS structure of outer membrane. LOSs are virulence factors that enable the organism to evade the immune system of host cells. In E. coli, the three alpha-1,2-glycosyltransferases, that are involved in the synthesis of the outer core region of the LPS, are all members of this family. The three enzymes share 40 % of sequence identity, but have different sugar donor or acceptor specificities, representing the structural diversity of LPS.
Pssm-ID: 133037 [Multi-domain] Cd Length: 248 Bit Score: 212.07 E-value: 1.07e-67
Glycosyl transferase family 8; This family includes enzymes that transfer sugar residues to ...
33-264
6.48e-33
Glycosyl transferase family 8; This family includes enzymes that transfer sugar residues to donor molecules. Members of this family are involved in lipopolysaccharide biosynthesis and glycogen synthesis. This family includes Lipopolysaccharide galactosyltransferase, lipopolysaccharide glucosyltransferase 1, and glycogenin glucosyltransferase.
Pssm-ID: 279798 [Multi-domain] Cd Length: 252 Bit Score: 122.43 E-value: 6.48e-33
A4GalT_like proteins catalyze the addition of galactose or glucose residues to the ...
32-265
1.07e-67
A4GalT_like proteins catalyze the addition of galactose or glucose residues to the lipooligosaccharide (LOS) or lipopolysaccharide (LPS) of the bacterial cell surface; The members of this family of glycosyltransferases catalyze the addition of galactose or glucose residues to the lipooligosaccharide (LOS) or lipopolysaccharide (LPS) of the bacterial cell surface. The enzymes exhibit broad substrate specificities. The known functions found in this family include: Alpha-1,4-galactosyltransferase, LOS-alpha-1,3-D-galactosyltransferase, UDP-glucose:(galactosyl) LPS alpha1,2-glucosyltransferase, UDP-galactose: (glucosyl) LPS alpha1,2-galactosyltransferase, and UDP-glucose:(glucosyl) LPS alpha1,2-glucosyltransferase. Alpha-1,4-galactosyltransferase from N. meningitidis adds an alpha-galactose from UDP-Gal (the donor) to a terminal lactose (the acceptor) of the LOS structure of outer membrane. LOSs are virulence factors that enable the organism to evade the immune system of host cells. In E. coli, the three alpha-1,2-glycosyltransferases, that are involved in the synthesis of the outer core region of the LPS, are all members of this family. The three enzymes share 40 % of sequence identity, but have different sugar donor or acceptor specificities, representing the structural diversity of LPS.
Pssm-ID: 133037 [Multi-domain] Cd Length: 248 Bit Score: 212.07 E-value: 1.07e-67
Glycosyl transferase family 8; This family includes enzymes that transfer sugar residues to ...
33-264
6.48e-33
Glycosyl transferase family 8; This family includes enzymes that transfer sugar residues to donor molecules. Members of this family are involved in lipopolysaccharide biosynthesis and glycogen synthesis. This family includes Lipopolysaccharide galactosyltransferase, lipopolysaccharide glucosyltransferase 1, and glycogenin glucosyltransferase.
Pssm-ID: 279798 [Multi-domain] Cd Length: 252 Bit Score: 122.43 E-value: 6.48e-33
Members of glycosyltransferase family 8 (GT-8) are involved in lipopolysaccharide biosynthesis ...
30-264
1.88e-29
Members of glycosyltransferase family 8 (GT-8) are involved in lipopolysaccharide biosynthesis and glycogen synthesis; Members of this family are involved in lipopolysaccharide biosynthesis and glycogen synthesis. GT-8 comprises enzymes with a number of known activities: lipopolysaccharide galactosyltransferase, lipopolysaccharide glucosyltransferase 1, glycogenin glucosyltransferase, and N-acetylglucosaminyltransferase. GT-8 enzymes contains a conserved DXD motif which is essential in the coordination of a catalytic divalent cation, most commonly Mn2+.
Pssm-ID: 132996 [Multi-domain] Cd Length: 246 Bit Score: 112.92 E-value: 1.88e-29
Glycogenin belongs the GT 8 family and initiates the biosynthesis of glycogen; Glycogenin ...
126-270
8.16e-11
Glycogenin belongs the GT 8 family and initiates the biosynthesis of glycogen; Glycogenin initiates the biosynthesis of glycogen by incorporating glucose residues through a self-glucosylation reaction at a Tyr residue, and then acts as substrate for chain elongation by glycogen synthase and branching enzyme. It contains a conserved DxD motif and an N-terminal beta-alpha-beta Rossmann-like fold that are common to the nucleotide-binding domains of most glycosyltransferases. The DxD motif is essential for coordination of the catalytic divalent cation, most commonly Mn2+. Glycogenin can be classified as a retaining glycosyltransferase, based on the relative anomeric stereochemistry of the substrate and product in the reaction catalyzed. It is placed in glycosyltransferase family 8 which includes lipopolysaccharide glucose and galactose transferases and galactinol synthases.
Pssm-ID: 133018 [Multi-domain] Cd Length: 240 Bit Score: 61.12 E-value: 8.16e-11
GT8_like_1 represents a subfamily of GT8 with unknown function; A subfamily of ...
111-264
8.54e-09
GT8_like_1 represents a subfamily of GT8 with unknown function; A subfamily of glycosyltransferase family 8 with unknown function: Glycosyltransferase family 8 comprises enzymes with a number of known activities; lipopolysaccharide galactosyltransferase lipopolysaccharide glucosyltransferase 1, glycogenin glucosyltransferase and inositol 1-alpha-galactosyltransferase. It is classified as a retaining glycosyltransferase, based on the relative anomeric stereochemistry of the substrate and product in the reaction catalyzed.
Pssm-ID: 133051 [Multi-domain] Cd Length: 257 Bit Score: 55.47 E-value: 8.54e-09
The C-terminal domain of HUGT1-like is highly homologous to the GT 8 family; C-terminal domain ...
49-155
1.96e-03
The C-terminal domain of HUGT1-like is highly homologous to the GT 8 family; C-terminal domain of glycoprotein glucosyltransferase (UGT). UGT is a large glycoprotein whose C-terminus contains the catalytic activity. This catalytic C-terminal domain is highly homologous to Glycosyltransferase Family 8 (GT 8) and contains the DXD motif that coordinates donor sugar binding, characteristic for Family 8 glycosyltransferases. GT 8 proteins are retaining enzymes based on the relative anomeric stereochemistry of the substrate and product in the reaction catalyzed. The non-catalytic N-terminal portion of the human UTG1 (HUGT1) has been shown to monitor the protein folding status and activate its glucosyltransferase activity.
Pssm-ID: 133054 Cd Length: 248 Bit Score: 39.30 E-value: 1.96e-03
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.
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