Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyType B glycosyltransferase-like 8033137 3001586 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
APhosphorylase_Ce1gpbA1 A: a/b three-layered sandwichesX: UDP-Glycosyltransferase/glycogen phosphorylase (From Topology)H: UDP-Glycosyltransferase/glycogen phosphorylase (From Topology)T: UDP-Glycosyltransferase/glycogen phosphorylaseF: Phosphorylase_CECOD (1.6)
APhosphorylase_Ne1gpbA2 A: a/b three-layered sandwichesX: UDP-Glycosyltransferase/glycogen phosphorylase (From Topology)H: UDP-Glycosyltransferase/glycogen phosphorylase (From Topology)T: UDP-Glycosyltransferase/glycogen phosphorylaseF: Phosphorylase_NECOD (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)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF00343Carbohydrate phosphorylase (Phosphorylase)Carbohydrate phosphorylase- Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
GLYCOGEN PHOSPHORYLASE B

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

ChainsEnzyme NameDescriptionCatalytic Residues
Glycogen phosphorylase  M-CSA #205

Phophorylases are important allosteric enzymes in the carbohydrate metabolism. Enzymes from different sources differ in their regulatory mechanisms and in their natural substrates. However all known phosphorylases share catalytic and structural properties. For example glycogen phosphorylase catalyses the intracellular degradation of glycogen into glucose-1-phosphate, the first step of glycolysis. It was the first enzyme to be discovered that was controlled by phosphorylation. Other phosphorylases include maltodextrin phosphorylase and starch phosphorylase.

Defined by 6 residues: HIS:A-377LYS:A-568ARG:A-569LYS:A-574THR:A-676LYS:A-680
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