5mga

X-ray diffraction
3Å resolution

Structure of the Cpf1 endonuclease R-loop complex after DNA cleavage

Released:

Function and Biology Details

Reactions catalysed:
Endonucleolytic cleavage to 5'-phosphodinucleotide and 5'-phosphooligonucleotide end-products
RNA = a 5'-hydroxy-ribonucleotide + n nucleoside-2',3'-cyclophosphates
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
PDBe Complex ID:
PDB-CPX-106188 (preferred)
Entry contents:
1 distinct polypeptide molecule
2 distinct DNA molecules
1 distinct RNA molecule
Macromolecules (4 distinct):
CRISPR-associated endonuclease Cas12a Chain: A
Molecule details ›
Chain: A
Length: 1323 amino acids
Theoretical weight: 154.81 KDa
Source organism: Francisella tularensis subsp. novicida U112
Expression system: Escherichia coli BL21
UniProt:
  • Canonical: A0Q7Q2 (Residues: 1-1300; Coverage: 100%)
Gene names: FTN_1397, cas12a, cpf1
Sequence domains:
DNA (26-MER) Chain: C
Molecule details ›
Chain: C
Length: 26 nucleotides
Theoretical weight: 7.94 KDa
Source organism: Francisella tularensis subsp. novicida U112
Expression system: Not provided
DNA (5'-D(P*CP*GP*TP*TP*AP*GP*AP*GP*AP*AP*GP*T)-3') Chain: D
Molecule details ›
Chain: D
Length: 12 nucleotides
Theoretical weight: 3.73 KDa
Source organism: Francisella tularensis subsp. novicida U112
Expression system: Not provided
RNA (40-MER) Chain: B
Molecule details ›
Chain: B
Length: 40 nucleotides
Theoretical weight: 12.81 KDa
Source organism: Francisella tularensis subsp. novicida U112
Expression system: Not provided

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SLS BEAMLINE X06SA
Spacegroup: C2221
Unit cell:
a: 85.223Å b: 137.652Å c: 320.513Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.243 0.242 0.265
Expression systems:
  • Escherichia coli BL21
  • Not provided