8xyb

Electron Microscopy
3.1Å resolution

hPhK gamma-delta subcomplex in inactive state

Released:
Source organism: Homo sapiens
Primary publication:
Architecture and activation of human muscle phosphorylase kinase.
OpenAccess logo Nat Commun 15 2719 (2024)
PMID: 38548794
Related structures: EMD-36215

Function and Biology Details

Reactions catalysed:
ATP + a protein = ADP + a phosphoprotein
2 ATP + phosphorylase b = 2 ADP + phosphorylase a
ATP + [tau protein] = ADP + [tau protein] phosphate
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
PDBe Complex ID:
PDB-CPX-272758 (preferred)
Entry contents:
3 distinct polypeptide molecules
Macromolecules (3 distinct):
Phosphorylase b kinase regulatory subunit alpha, skeletal muscle isoform Chain: A
Molecule details ›
Chain: A
Length: 1223 amino acids
Theoretical weight: 137.47 KDa
Source organism: Homo sapiens
Expression system: Homo sapiens
UniProt:
  • Canonical: P46020 (Residues: 1-1223; Coverage: 100%)
Gene names: PHKA, PHKA1
Sequence domains:
Calmodulin-1 Chain: D
Molecule details ›
Chain: D
Length: 149 amino acids
Theoretical weight: 16.85 KDa
Source organism: Homo sapiens
Expression system: Homo sapiens
UniProt:
  • Canonical: P0DP23 (Residues: 1-149; Coverage: 100%)
Gene names: CALM, CALM1, CAM, CAM1
Sequence domains: EF-hand domain pair
Phosphorylase b kinase gamma catalytic chain, skeletal muscle/heart isoform Chain: C
Molecule details ›
Chain: C
Length: 387 amino acids
Theoretical weight: 45.08 KDa
Source organism: Homo sapiens
Expression system: Homo sapiens
UniProt:
  • Canonical: Q16816 (Residues: 1-387; Coverage: 100%)
Gene names: PHKG, PHKG1
Sequence domains: Protein kinase domain

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
Resolution: 3.1Å
Relevant EMDB volumes: EMD-36215
Expression system: Homo sapiens