5vvk

X-ray diffraction
2.9Å resolution

Cas1-Cas2 bound to full-site mimic

Released:
Source organism: Escherichia coli K-12
Primary publication:
Structures of the CRISPR genome integration complex.
Science 357 1113-1118 (2017)
PMID: 28729350

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero decamer (preferred)
PDBe Complex ID:
PDB-CPX-119300 (preferred)
Entry contents:
2 distinct polypeptide molecules
4 distinct DNA molecules
Macromolecules (6 distinct):
CRISPR-associated endonuclease Cas1 Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 308 amino acids
Theoretical weight: 33.57 KDa
Source organism: Escherichia coli K-12
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q46896 (Residues: 1-305; Coverage: 100%)
Gene names: JW2725, b2755, cas1, ygbT
Sequence domains: CRISPR associated protein Cas1
Structure domains:
CRISPR-associated endoribonuclease Cas2 Chains: E, F
Molecule details ›
Chains: E, F
Length: 94 amino acids
Theoretical weight: 10.53 KDa
Source organism: Escherichia coli K-12
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P45956 (Residues: 1-94; Coverage: 100%)
Gene names: JW5438, b2754, cas2, ygbF
Sequence domains: CRISPR-associated protein (Cas_Cas2CT1978)
DNA (5'-D(*GP*CP*CP*CP*CP*AP*GP*TP*AP*GP*C)-3') Chain: G
Molecule details ›
Chain: G
Length: 11 nucleotides
Theoretical weight: 3.32 KDa
DNA (5'-D(*GP*AP*CP*CP*AP*CP*CP*AP*GP*TP*G)-3') Chain: H
Molecule details ›
Chain: H
Length: 11 nucleotides
Theoretical weight: 3.34 KDa
DNA (58-MER) Chain: J
Molecule details ›
Chain: J
Length: 58 nucleotides
Theoretical weight: 17.91 KDa
DNA (58-MER) Chain: K
Molecule details ›
Chain: K
Length: 58 nucleotides
Theoretical weight: 17.97 KDa

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 8.3.1
Spacegroup: P21
Unit cell:
a: 74.9Å b: 197.612Å c: 95.344Å
α: 90° β: 112.7° γ: 90°
R-values:
R R work R free
0.218 0.217 0.254
Expression system: Escherichia coli BL21(DE3)