› 4xw4

X-ray diffraction
1.82Å resolution

X-ray structure of PKAc with AMPPNP, SP20, calcium ions

Released:
DOI: 10.2210/pdb4xw4/pdb
PDB entry 4xw4 coloured by chain, front view.
PDB entry 4xw4 coloured by chain, side view.
PDB entry 4xw4 coloured by chain, top view.
Source organisms:
Primary publication:
Phosphoryl Transfer Reaction Snapshots in Crystals: INSIGHTS INTO THE MECHANISM OF PROTEIN KINASE A CATALYTIC SUBUNIT.
Gerlits O, Tian J, Das A, Langan P, Heller WT, Kovalevsky A, Kovalevsky A
J Biol Chem 290 15538-15548 (2015)
PMID: 25925954

Function and Biology Details

Reaction catalysed: 
ATP + a protein = ADP + a phosphoprotein
Biochemical function:
Biological process:
Cellular component:
Sequence domains:

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-138545 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
cAMP-dependent protein kinase catalytic subunit alpha Chain: A
Molecule details ›
Chain: A
Length: 356 amino acids
Theoretical weight: 41.57 KDa
Source organism: Mus musculus
Expression system: Escherichia coli
UniProt:
  • Canonical: P05132 (Residues: 15-351; Coverage: 96%)
Gene names: Pkaca, Prkaca
Sequence domains: Protein kinase domain
Structure domains:
cAMP-dependent protein kinase inhibitor alpha Chain: B
Molecule details ›
Chain: B
Length: 20 amino acids
Theoretical weight: 2.2 KDa
Source organism: Oryctolagus cuniculus
Expression system: Not provided
UniProt:
  • Canonical: P61926 (Residues: 6-25; Coverage: 26%)
Gene names: PKIA, PRKACN1

Ligands and Environments

2 bound ligands:
Ligand CA 2 x CA
Ligand ANP 1 x ANP
2 modified residues:
Ligand SEP 2 x SEP
Ligand TPO 1 x TPO

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU MICROMAX-007 HF
Spacegroup: P212121
Unit cell:
a: 56.364Å b: 78.816Å c: 97.985Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.184 0.184 0.24
Expression systems:
  • Escherichia coli
  • Not provided

Quick links

Citations

1 review citation

Metal Fluorides: Tools for Structural and Computational Analysis of Phosphoryl Transfer Enzymes.
Jin et al. (2017)
12 other articles

1 mention without citation

Phosphoryl Transfer Reaction Snapshots in Crystals: INSIGHTS INTO THE MECHANISM OF PROTEIN KINASE A CATALYTIC SUBUNIT.
Gerlits et al. (2015)