9C6A

The CRISPR associated adenosine deaminase Cad1-CARF in the apo form

• PDB DOI: https://doi.org/10.2210/pdb9C6A/pdb

• Classification: CYTOSOLIC PROTEIN
• Organism(s): Bacteroidales bacterium
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2024-06-07 Released: 2024-10-30 
• Deposition Author(s): Majumder, P., Patel, D.J.
• Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.60 Å
• R-Value Free: 0.317 
• R-Value Work: 0.248 
• R-Value Observed: 0.252 

Starting Model: in silico

Literature

The CRISPR associated adenosine deaminase Cad1 converts ATP to ITP to provide antiviral immunity

Majumder, P., Patel, D.J., Baca, C.F., Marraffini, L.A., Hickling, J.H., Ye, L., Brady, S.F., Teplova, M.

(2024) Cell 

• DOI: https://doi.org/10.1016/j.cell.2024.10.002

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly Evidence: gel filtration

Biological Assembly 2  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 75.86 kDa 
• Atom Count: 5,340 
• Modelled Residue Count: 663 
• Deposited Residue Count: 664 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Adenosine deaminase domain-containing protein	A, B, C, D	166	Bacteroidales bacterium	Mutation(s): 0  Gene Names: DCM62_02910
UniProt
Find proteins for A0A3C0QUR5 (Bacteroidales bacterium) Explore A0A3C0QUR5  Go to UniProtKB:  A0A3C0QUR5

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.60 Å
• R-Value Free: 0.317 
• R-Value Work: 0.248 
• R-Value Observed: 0.252 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 53.615	α = 90
b = 96.801	β = 90
c = 155.722	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
Aimless	data scaling
MOLREP	phasing
HKL-2000	data reduction

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-10-30 
Deposition Author(s): Majumder, P., Patel, D.J.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	NIHGM129430, NIHGM145888

Revision History  

• Version 1.0: 2024-10-30
  Type: Initial release