1x9n

X-ray diffraction
3Å resolution

Crystal Structure of Human DNA Ligase I bound to 5'-adenylated, nicked DNA

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-114795 (preferred)
Entry contents:
1 distinct polypeptide molecule
3 distinct DNA molecules
Macromolecules (4 distinct):
DNA ligase 1 Chain: A
Molecule details ›
Chain: A
Length: 688 amino acids
Theoretical weight: 76.61 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P18858 (Residues: 232-919; Coverage: 75%)
Gene name: LIG1
Sequence domains:
Structure domains:
dideoxy terminated DNA Chain: B
Molecule details ›
Chain: B
Length: 13 nucleotides
Theoretical weight: 3.98 KDa
Source organism: Homo sapiens
Expression system: Not provided
5'-phosphorylated DNA Chain: C
Molecule details ›
Chain: C
Length: 15 nucleotides
Theoretical weight: 4.64 KDa
Source organism: Homo sapiens
Expression system: Not provided
template DNA Chain: D
Molecule details ›
Chain: D
Length: 28 nucleotides
Theoretical weight: 8.53 KDa
Source organism: Homo sapiens
Expression system: Not provided

Ligands and Environments

1 bound ligand:
2 modified residues:

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X25
Spacegroup: P63
Unit cell:
a: 161.889Å b: 161.889Å c: 88.455Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.236 0.235 0.268
Expression systems:
  • Escherichia coli
  • Not provided