6x0m

Electron Microscopy
6.3Å resolution

Bridging of double-strand DNA break activates PARP2/HPF1 to modify chromatin

Released:
Source organism: Homo sapiens
Primary publication:
Bridging of DNA breaks activates PARP2-HPF1 to modify chromatin.
Nature 585 609-613 (2020)
PMID: 32939087
Related structures: EMD-21979

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero octamer (preferred)
PDBe Complex ID:
PDB-CPX-120893 (preferred)
Entry contents:
2 distinct polypeptide molecules
2 distinct DNA molecules
Macromolecules (4 distinct):
Histone PARylation factor 1 Chains: O, o
Molecule details ›
Chains: O, o
Length: 356 amino acids
Theoretical weight: 40.6 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: Q9NWY4 (Residues: 1-346; Coverage: 100%)
Gene names: C4orf27, HPF1
Sequence domains: Histone PARylation factor 1
Poly [ADP-ribose] polymerase 2 Chains: P, p
Molecule details ›
Chains: P, p
Length: 590 amino acids
Theoretical weight: 67.07 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: Q9UGN5 (Residues: 1-583; Coverage: 98%)
Gene names: ADPRT2, ADPRTL2, PARP2
Sequence domains:
DNA (167-MER) Chains: I, i
Molecule details ›
Chains: I, i
Length: 167 nucleotides
Theoretical weight: 51.78 KDa
DNA (167-MER) Chains: J, j
Molecule details ›
Chains: J, j
Length: 167 nucleotides
Theoretical weight: 51.33 KDa

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
Resolution: 6.3Å
Relevant EMDB volumes: EMD-21979
Expression system: Escherichia coli