1mq2

X-ray diffraction
3.1Å resolution

Human DNA Polymerase Beta Complexed With Gapped DNA Containing an 8-oxo-7,8-dihydro-Guanine and dAMP

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
Entry contents:
1 distinct polypeptide molecule
3 distinct DNA molecules
Macromolecules (4 distinct):
DNA polymerase beta Chain: A
Molecule details ›
Chain: A
Length: 335 amino acids
Theoretical weight: 38.24 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P06746 (Residues: 1-335; Coverage: 100%)
Gene name: POLB
Sequence domains:
Structure domains:
5'-D(*CP*CP*GP*AP*CP*(8OG)P*TP*CP*GP*CP*AP*TP*CP*AP*GP*C)-3' Chain: T
Molecule details ›
Chain: T
Length: 16 nucleotides
Theoretical weight: 4.86 KDa
Source organism: Homo sapiens
Expression system: Not provided
5'-D(*GP*CP*TP*GP*AP*TP*GP*CP*GP*(2DA))-3' Chain: P
Molecule details ›
Chain: P
Length: 10 nucleotides
Theoretical weight: 3.07 KDa
Source organism: Homo sapiens
Expression system: Not provided
5'-D(P*GP*TP*CP*GP*G)-3' Chain: D
Molecule details ›
Chain: D
Length: 5 nucleotides
Theoretical weight: 1.54 KDa
Source organism: Homo sapiens
Expression system: Not provided

Ligands and Environments

2 bound ligands:

2 modified residues:

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X9B
Spacegroup: P21
Unit cell:
a: 55.2Å b: 81Å c: 55.6Å
α: 90° β: 106.1° γ: 90°
R-values:
R R work R free
0.26 0.257 0.317
Expression systems:
  • Escherichia coli
  • Not provided