Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2 FamilyTrehalose-6-phosphate synthase, OtsA 8029595 4003141 SCOP2 (2022-06-29)
ASCOP2 SuperfamilyType B glycosyltransferase-like 8041974 3001586 SCOP2 (2022-06-29)
BSCOP2B SuperfamilyType B glycosyltransferase-like 8041974 3001586 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AGlyco_transf_20_Ne1uqtA2 A: a/b three-layered sandwichesX: UDP-Glycosyltransferase/glycogen phosphorylase (From Topology)H: UDP-Glycosyltransferase/glycogen phosphorylase (From Topology)T: UDP-Glycosyltransferase/glycogen phosphorylaseF: Glyco_transf_20_NECOD (1.6)
AGlyco_transf_20_Ce1uqtA3 A: a/b three-layered sandwichesX: UDP-Glycosyltransferase/glycogen phosphorylase (From Topology)H: UDP-Glycosyltransferase/glycogen phosphorylase (From Topology)T: UDP-Glycosyltransferase/glycogen phosphorylaseF: Glyco_transf_20_CECOD (1.6)
BGlyco_transf_20_Ne1uqtB1 A: a/b three-layered sandwichesX: UDP-Glycosyltransferase/glycogen phosphorylase (From Topology)H: UDP-Glycosyltransferase/glycogen phosphorylase (From Topology)T: UDP-Glycosyltransferase/glycogen phosphorylaseF: Glyco_transf_20_NECOD (1.6)
BGlyco_transf_20_Ce1uqtB2 A: a/b three-layered sandwichesX: UDP-Glycosyltransferase/glycogen phosphorylase (From Topology)H: UDP-Glycosyltransferase/glycogen phosphorylase (From Topology)T: UDP-Glycosyltransferase/glycogen phosphorylaseF: Glyco_transf_20_CECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A3.40.50.2000 Alpha Beta 3-Layer(aba) Sandwich Rossmann fold Glycogen Phosphorylase BCATH (4.3.0)
B3.40.50.2000 Alpha Beta 3-Layer(aba) Sandwich Rossmann fold Glycogen Phosphorylase BCATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B
PF00982Glycosyltransferase family 20 (Glyco_transf_20)Glycosyltransferase family 20- Family

InterPro: Protein Family Classification InterPro Database Homepage

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

ChainsEnzyme NameDescriptionCatalytic Residues
alpha,alpha-trehalose-phosphate synthase (UDP-forming)  M-CSA #622

Escherichia coli trehalose-6-phosphate synthase is part of the glycosyl transferase family 20, the retaining glycosyl transferases. It is able to catalyse the condensation between Glucose-6-phosphate and UDP-glucose to form trehalose-6-phosphate, an important metabolite for many bacteria and plants. Interest in the enzyme stems both from the study of the unusual reaction mechanism and the fact that it plays a key role in bacterial cell wall synthesis in M. tuberculosis, so is a possible target for antibiotics. It displays sequence and structural identity with the glycogen phosphorylases in particular, suggesting a common mechanism and evolutionary origin. Also found to be similar is the pseudo-glycosyltransferase VldE involved in validoxylamine A 7'-phosphate synthesis.

Defined by 2 residues: HIS:A-155 [auth A-154]ASP:A-362 [auth A-361]
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