5U34

Crystal structure of AacC2c1-sgRNA binary complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.255 Å
  • R-Value Free: 0.324 
  • R-Value Work: 0.270 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

PAM-Dependent Target DNA Recognition and Cleavage by C2c1 CRISPR-Cas Endonuclease.

Yang, H.Gao, P.Rajashankar, K.R.Patel, D.J.

(2016) Cell 167: 1814-1828.e12

  • DOI: 10.1016/j.cell.2016.11.053
  • Primary Citation of Related Structures:  5U30, 5U31, 5U33

  • PubMed Abstract: 
  • C2c1 is a newly identified guide RNA-mediated type V-B CRISPR-Cas endonuclease that site-specifically targets and cleaves both strands of target DNA. We have determined crystal structures of Alicyclobacillus acidoterrestris C2c1 (AacC2c1) bound to sg ...

    C2c1 is a newly identified guide RNA-mediated type V-B CRISPR-Cas endonuclease that site-specifically targets and cleaves both strands of target DNA. We have determined crystal structures of Alicyclobacillus acidoterrestris C2c1 (AacC2c1) bound to sgRNA as a binary complex and to target DNAs as ternary complexes, thereby capturing catalytically competent conformations of AacC2c1 with both target and non-target DNA strands independently positioned within a single RuvC catalytic pocket. Moreover, C2c1-mediated cleavage results in a staggered seven-nucleotide break of target DNA. crRNA adopts a pre-ordered five-nucleotide A-form seed sequence in the binary complex, with release of an inserted tryptophan, facilitating zippering up of 20-bp guide RNA:target DNA heteroduplex on ternary complex formation. Notably, the PAM-interacting cleft adopts a "locked" conformation on ternary complex formation. Structural comparison of C2c1 ternary complexes with their Cas9 and Cpf1 counterparts highlights the diverse mechanisms adopted by these distinct CRISPR-Cas systems, thereby broadening and enhancing their applicability as genome editing tools.


    Organizational Affiliation

    Structurel Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA. Electronic address: yangh3@mskcc.org.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CRISPR-associated endonuclease C2c1
A
1130Alicyclobacillus acidoterrestris (strain ATCC 49025 / DSM 3922 / CIP 106132 / NCIMB 13137 / GD3B)Gene Names: c2c1
EC: 3.1.-.-
Find proteins for T0D7A2 (Alicyclobacillus acidoterrestris (strain ATCC 49025 / DSM 3922 / CIP 106132 / NCIMB 13137 / GD3B))
Go to UniProtKB:  T0D7A2
Entity ID: 2
MoleculeChainsLengthOrganism
sgRNAB112Alicyclobacillus acidoterrestris
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.255 Å
  • R-Value Free: 0.324 
  • R-Value Work: 0.270 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 83.471α = 90.00
b = 128.198β = 90.00
c = 155.788γ = 90.00
Software Package:
Software NamePurpose
XDSdata scaling
PHASERphasing
PHENIXrefinement
XDSdata reduction
SCALEPACKdata scaling
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationCountryGrant Number
National Institutes of Health/National Institute of General Medical SciencesUnited StatesGM104962
Memorial Sloan-Kettering Cancer Center Core GrantUnited StatesP30 CA008748

Revision History 

  • Version 1.0: 2017-01-25
    Type: Initial release
  • Version 1.1: 2017-09-20
    Type: Author supporting evidence