5dqt

X-ray diffraction
3.1Å resolution

Crystal Structure of Cas-DNA-22 complex

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero octamer (preferred)
PDBe Complex ID:
PDB-CPX-118584 (preferred)
Entry contents:
2 distinct polypeptide molecules
2 distinct DNA molecules
Macromolecules (4 distinct):
CRISPR-associated endonuclease Cas1 Chains: A, B, C, D, I, J, K, L
Molecule details ›
Chains: A, B, C, D, I, J, K, L
Length: 305 amino acids
Theoretical weight: 33.24 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, M, N
Molecule details ›
Chains: E, F, M, N
Length: 94 amino acids
Theoretical weight: 10.53 KDa
Source organism: Escherichia coli K-12
Expression system: Escherichia coli
UniProt:
  • Canonical: P45956 (Residues: 1-94; Coverage: 100%)
Gene names: JW5438, b2754, cas2, ygbF
Sequence domains: CRISPR-associated protein (Cas_Cas2CT1978)
DNA (34-MER) Chains: G, O
Molecule details ›
Chains: G, O
Length: 34 nucleotides
Theoretical weight: 10.47 KDa
DNA (33-MER) Chains: H, P
Molecule details ›
Chains: H, P
Length: 33 nucleotides
Theoretical weight: 10.03 KDa

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRF BEAMLINE BL17U
Spacegroup: P21
Unit cell:
a: 71.434Å b: 194.955Å c: 195.202Å
α: 90° β: 90.22° γ: 90°
R-values:
R R work R free
0.213 0.211 0.258
Expression systems:
  • Escherichia coli BL21(DE3)
  • Escherichia coli