Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyNucleotide-diphospho-sugar transferases 8043892 3000077 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyNucleotide-diphospho-sugar transferases 8043892 3000077 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AGlyco_transf_7Ne1fr8A1 A: a/b three-layered sandwichesX: Nucleotide-diphospho-sugar transferases (From Topology)H: Nucleotide-diphospho-sugar transferases (From Topology)T: Nucleotide-diphospho-sugar transferasesF: Glyco_transf_7NECOD (1.6)
BGlyco_transf_7Ne1fr8B1 A: a/b three-layered sandwichesX: Nucleotide-diphospho-sugar transferases (From Topology)H: Nucleotide-diphospho-sugar transferases (From Topology)T: Nucleotide-diphospho-sugar transferasesF: Glyco_transf_7NECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A3.90.550.10 Alpha Beta Alpha-Beta Complex Spore Coat Polysaccharide Biosynthesis Protein SpsA Chain ACATH (4.3.0)
B3.90.550.10 Alpha Beta Alpha-Beta Complex Spore Coat Polysaccharide Biosynthesis Protein SpsA Chain ACATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B
PF02709N-terminal domain of galactosyltransferase (Glyco_transf_7C)N-terminal domain of galactosyltransferase- Family
A, B
PF13733N-terminal region of glycosyl transferase group 7 (Glyco_transf_7N)N-terminal region of glycosyl transferase group 7This is the N-terminal half of a family of galactosyltransferases from a wide range of Metazoa with three related galactosyltransferases activities, all three of which are possessed by one sequence in some cases. EC:2.4.1.90, N-acetyllactosamine syn ...This is the N-terminal half of a family of galactosyltransferases from a wide range of Metazoa with three related galactosyltransferases activities, all three of which are possessed by one sequence in some cases. EC:2.4.1.90, N-acetyllactosamine synthase; EC:2.4.1.38, Beta-N-acetylglucosaminyl-glycopeptide beta-1,4- galactosyltransferase; and EC:2.4.1.22 Lactose synthase. Note that N-acetyllactosamine synthase is a component of Lactose synthase along with alpha-lactalbumin, in the absence of alpha-lactalbumin EC:2.4.1.90 is the catalysed reaction.
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, B
BETA 1,4 GALACTOSYLTRANSFERASE

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

ChainsEnzyme NameDescriptionCatalytic Residues
β-N-acetylglucosaminylglycopeptide β-1,4-galactosyltransferase  M-CSA #570

Beta-1,4-galactosyltransferase-1 (Gal-T1) is a Golgi resident type II protein that catalyses the transfer of galactose from UDP-Gal to N-acetylglucosamine in the presence of Mg2+, forming the product N-acetyl-lactosamine. The 1-4- galactosyltransferase (Gal-T) family, consists of at least seven members, including Gal-T1, with a 25 to 55% sequence homology. These enzymes are expressed in different tissues and show differences in the oligosaccharide acceptor specificity.

Defined by 8 residues: ASP:A-138 [auth A-252]ASP:A-140 [auth A-254]TRP:A-200 [auth A-314]GLU:A-203 [auth A-317]ASP:A-204 [auth A-318]MET:A-230 [auth A-344]HIS:A-233 [auth A-347]ARG:A-235 [auth A-349]
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