9EBZ

Escherichia coli Carbonic Anhydrase 2 in Space Group C222(1)

• PDB DOI: https://doi.org/10.2210/pdb9EBZ/pdb

• Classification: LYASE
• Organism(s): Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2024-11-13 Released: 2024-11-20 
• Deposition Author(s): Rankin, M.R., Smith, J.L.
• Funding Organization(s): National Institutes of Health/National Institute of Diabetes and Digestive and Kidney Disease (NIH/NIDDK), National Institutes of Health/National Cancer Institute (NIH/NCI)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.66 Å
• R-Value Free: 0.287 
• R-Value Work: 0.261 
• R-Value Observed: 0.262 

Starting Model: experimental

Literature

Serendipitous High-Resolution Structure of Escherichia coli Carbonic Anhydrase 2

Rankin, M.R., Smith, J.L.

To be published.

Biological Assembly 1  

Global Symmetry: Dihedral - D2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

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

Macromolecule Content

• Total Structure Weight: 100.78 kDa 
• Atom Count: 6,831 
• Modelled Residue Count: 852 
• Deposited Residue Count: 880 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Carbonic anhydrase	A, B, C, D	220	Escherichia coli BL21(DE3)	Mutation(s): 0  EC: 4.2.1.1
UniProt
Find proteins for A0A140NBR3 (Escherichia coli (strain B / BL21-DE3)) Explore A0A140NBR3  Go to UniProtKB:  A0A140NBR3

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ZN (Subject of Investigation/LOI)	E [auth A], F [auth B], G [auth C], H [auth D]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.66 Å
• R-Value Free: 0.287 
• R-Value Work: 0.261 
• R-Value Observed: 0.262 
• Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 113.227	α = 90
b = 119.145	β = 90
c = 161.01	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XDS	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-11-20 
Deposition Author(s): Rankin, M.R., Smith, J.L.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of Diabetes and Digestive and Kidney Disease (NIH/NIDDK)	United States	R01DK042303
National Institutes of Health/National Cancer Institute (NIH/NCI)	United States	F31CA265082

Revision History  

• Version 1.0: 2024-11-20
  Type: Initial release