4R5Q

Crystal structure and nuclease activity of the CRISPR-associated Cas4 protein Pcal_0546 from Pyrobaculum calidifontis containing a [2Fe-2S] cluster


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.65 Å
  • R-Value Free: 0.253
  • R-Value Work: 0.228

Literature

Macromolecules
Sequence Display for 4R5Q

Classification: HYDROLASE

Total Structure Weight: 25231.47

Macromolecule Entities
Molecule Chains Length Organism Details
CRISPR-associated exonuclease, Cas4 family A 216 Pyrobaculum calidifontis Gene Name(s): cas4 Pcal_0546
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

Small Molecules
Ligands 2 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
FES
Query on FES

A FE2/S2 (INORGANIC) CLUSTER
Fe2 S2
NIXDOXVAJZFRNF-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
MG
Query on MG

A MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.65 Å
  • R-Value Free: 0.253
  • R-Value Work: 0.228
  • Space Group: I 4 2 2

Unit Cell:

Length (Å) Angle (°)
a = 117.84 α = 90.00
b = 117.84 β = 90.00
c = 89.41 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2014-08-21
  • Released Date: 2014-09-17
  • Deposition author(s): Nocek, B., Skarina, T., Lemak, S., Brown, G., Savchenko, A., Joachimiak, A., Yakunin, A., Midwest Center for Structural Genomics (MCSG)
  • This entry supercedes: 4ONB

Revision History

  • Version 1_0: 2014-09-17

    Type: Initial release

  • Version 1_1: 2017-10-25

    Type: Author supporting evidence, Refinement description