7nzm

Electron Microscopy
3.96Å resolution

Cryo-EM structure of pre-dephosphorylation complex of phosphorylated eIF2alpha with trapped holophosphatase (PP1A_D64A/PPP1R15A/G-actin/DNase I)

Released:

Function and Biology Details

Reactions catalysed:
[a protein]-serine/threonine phosphate + H(2)O = [a protein]-serine/threonine + phosphate
Endonucleolytic cleavage to 5'-phosphodinucleotide and 5'-phosphooligonucleotide end-products
Biochemical function:
Cellular component:

Structure analysis Details

Assembly composition:
hetero pentamer (preferred)
PDBe Complex ID:
PDB-CPX-131122 (preferred)
Entry contents:
5 distinct polypeptide molecules
Macromolecules (6 distinct):
Eukaryotic translation initiation factor 2 subunit 1 Chain: E
Molecule details ›
Chain: E
Length: 186 amino acids
Theoretical weight: 21.82 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P05198 (Residues: 2-187; Coverage: 59%)
Gene names: EIF2A, EIF2S1
Sequence domains:
Serine/threonine-protein phosphatase PP1-alpha catalytic subunit Chain: B
Molecule details ›
Chain: B
Length: 294 amino acids
Theoretical weight: 33.65 KDa
Source organism: Oryctolagus cuniculus
Expression system: Escherichia coli
UniProt:
  • Canonical: P62139 (Residues: 7-300; Coverage: 89%)
Gene names: PPP1A, PPP1CA
Sequence domains:
Actin, alpha skeletal muscle Chain: A
Molecule details ›
Chain: A
Length: 375 amino acids
Theoretical weight: 41.86 KDa
Source organism: Oryctolagus cuniculus
UniProt:
  • Canonical: P68135 (Residues: 3-377; Coverage: 100%)
Gene names: ACTA, ACTA1
Sequence domains: Actin
Deoxyribonuclease-1 Chain: D
Molecule details ›
Chain: D
Length: 260 amino acids
Theoretical weight: 29.09 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: P00639 (Residues: 23-282; Coverage: 100%)
Gene names: DNASE1, DNL1
Sequence domains: Endonuclease/Exonuclease/phosphatase family
Maltose/maltodextrin-binding periplasmic protein; Protein phosphatase 1 regulatory subunit 15A Chain: C
Molecule details ›
Chain: C
Length: 444 amino acids
Theoretical weight: 49.17 KDa
Source organisms: Expression system: Escherichia coli
UniProt:
  • Canonical: O75807 (Residues: 553-624; Coverage: 11%)
  • Canonical: P0AEX9 (Residues: 26-396; Coverage: 100%)
Gene names: GADD34, JW3994, PPP1R15A, b4034, malE
Sequence domains:

Ligands and Environments

Carbohydrate polymer : NEW Components: NAG
2 bound ligands:
1 modified residue:

Experiments and Validation Details

Entry percentile scores
Resolution: 3.96Å
Relevant EMDB volumes: EMD-12665
Expression system: Escherichia coli