8v55

Electron Microscopy
4.2Å resolution

Human mitochondrial DNA polymerase gamma bound to a replication fork in an open conformation

Released:

Function and Biology Details

Reaction catalysed:
Deoxynucleoside triphosphate + DNA(n) = diphosphate + DNA(n+1)
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
hetero pentamer (preferred)
PDBe Complex ID:
PDB-CPX-270860 (preferred)
Entry contents:
2 distinct polypeptide molecules
2 distinct DNA molecules
Macromolecules (4 distinct):
DNA polymerase subunit gamma-1 Chain: A
Molecule details ›
Chain: A
Length: 1229 amino acids
Theoretical weight: 138.72 KDa
Source organism: Homo sapiens
Expression system: unidentified baculovirus
UniProt:
  • Canonical: P54098 (Residues: 26-1239; Coverage: 98%)
Gene names: MDP1, POLG, POLG1, POLGA
Sequence domains: DNA mitochondrial polymerase exonuclease domain
DNA polymerase subunit gamma-2 Chains: B, C
Molecule details ›
Chains: B, C
Length: 474 amino acids
Theoretical weight: 53.79 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: Q9UHN1 (Residues: 26-485; Coverage: 95%)
Gene names: MTPOLB, POLG2
Sequence domains: Anticodon binding domain
DNA primer chain Chain: P
Molecule details ›
Chain: P
Length: 25 nucleotides
Theoretical weight: 7.6 KDa
DNA template chain Chain: T
Molecule details ›
Chain: T
Length: 44 nucleotides
Theoretical weight: 13.6 KDa

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
Resolution: 4.2Å
Relevant EMDB volumes: EMD-42980
Expression systems:
  • unidentified baculovirus
  • Escherichia coli