1GPB | pdb_00001gpb

GLYCOGEN PHOSPHORYLASE B: DESCRIPTION OF THE PROTEIN STRUCTURE

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Structure Motif: Primary M-CSA Annotation

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1gpba_	Alpha and beta proteins (a/b)	UDP-Glycosyltransferase/glycogen phosphorylase	UDP-Glycosyltransferase/glycogen phosphorylase	Oligosaccharide phosphorylase	Glycogen phosphorylase	rabbit (Oryctolagus cuniculus ) [TaxId: 9986 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Type B glycosyltransferase-like	8033137	3001586	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	UPAR_LY6	e1gpbA1	A: beta barrels	X: Repetitive alpha hairpins	H: Snake toxin-like	T: Snake toxin-like	F: UPAR_LY6	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.2000	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Glycogen Phosphorylase B	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00343	Carbohydrate phosphorylase (Phosphorylase)	Carbohydrate phosphorylase	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	GLYCOGEN PHOSPHORYLASE B	1,4-alpha-oligoglucan phosphorylase activity glycosyltransferase activity glycogen phosphorylase activity transferase activity hexosyltransferase activity catalytic activity vitamin binding vitamin B6 binding pyridoxal phosphate binding ion binding binding anion binding heterocyclic compound binding small molecule binding 1,4-alpha-oligoglucan phosphorylase activity glycosyltransferase activity glycogen phosphorylase activity transferase activity hexosyltransferase activity catalytic activity vitamin binding vitamin B6 binding pyridoxal phosphate binding ion binding binding anion binding heterocyclic compound binding small molecule binding nucleoside phosphate binding nucleotide binding	carbohydrate metabolic process catabolic process glucan catabolic process energy derivation by oxidation of organic compounds glycogen metabolic process carbohydrate catabolic process primary metabolic process generation of precursor metabolites and energy macromolecule catabolic process polysaccharide metabolic process glucan metabolic process glycogen catabolic process polysaccharide catabolic process metabolic process carbohydrate metabolic process catabolic process glucan catabolic process energy derivation by oxidation of organic compounds glycogen metabolic process carbohydrate catabolic process primary metabolic process generation of precursor metabolites and energy macromolecule catabolic process polysaccharide metabolic process glucan metabolic process glycogen catabolic process polysaccharide catabolic process metabolic process cellular process energy reserve metabolic process macromolecule metabolic process	intracellular anatomical structure skeletal muscle myofibril intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle contractile muscle fiber cytoplasm supramolecular fiber myofibril supramolecular polymer supramolecular complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR000811	Glycosyl transferase, family 35	Family
A	IPR035090	Phosphorylase pyridoxal-phosphate attachment site	Conserved Site
A	IPR011833	Glycogen/starch/alpha-glucan phosphorylase	Family

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

Chains	Enzyme Name	Description	Catalytic Residues
A	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 \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 2.4.1.1 (PDB Primary Data) Search M-CSA Motif + EC 2.4.1.1

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.