4z0u

X-ray diffraction
2Å resolution

Function and Biology Details

Reaction catalysed:
Endonucleolytic cleavage to 5'-phosphomonoester.
Biochemical function:
Cellular component:

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-108527 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Ribonuclease H Chains: A, B
Molecule details ›
Chains: A, B
Length: 155 amino acids
Theoretical weight: 17.62 KDa
Source organism: Escherichia coli O139:H28 str. E24377A
Expression system: Escherichia coli
UniProt:
  • Canonical: A7ZHV1 (Residues: 1-155; Coverage: 100%)
Gene names: EcE24377A_0219, rnhA
Sequence domains: RNase H
Structure domains: Ribonuclease H-like superfamily/Ribonuclease H
Single-stranded DNA-binding protein Chains: D, E
Molecule details ›
Chains: D, E
Length: 10 amino acids
Theoretical weight: 1.3 KDa
Source organism: Escherichia coli
Expression system: Not provided
UniProt:
  • Canonical: P0AGE0 (Residues: 170-178; Coverage: 5%)
Gene names: JW4020, b4059, exrB, lexC, ssb

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 21-ID-D
Spacegroup: P2221
Unit cell:
a: 60.498Å b: 64.855Å c: 79.726Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.213 0.211 0.241
Expression systems:
  • Escherichia coli
  • Not provided