7Y2E

Zn-Carbonic Anhydrase II complexed with 3NPA after UV at 120 K

• PDB DOI: https://doi.org/10.2210/pdb7Y2E/pdb

• Classification: METAL BINDING PROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2022-06-09 Released: 2023-12-20 
• Deposition Author(s): Kim, C.U., Kim, J.K.
• Funding Organization(s): Other private

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.20 Å
• R-Value Free: 0.155 
• R-Value Work: 0.125 
• R-Value Observed: 0.126 

Literature

Temperature series of human Carbonic Anhydrase II with photolysis of caged CO2

Kim, C.U., Kim, J.K.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

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

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 29.49 kDa 
• Atom Count: 2,393 
• Modelled Residue Count: 257 
• Deposited Residue Count: 260 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Carbonic anhydrase 2	A	260	Homo sapiens	Mutation(s): 0  Gene Names: CA2 EC: 4.2.1.1 (PDB Primary Data), 4.2.1.69 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for P00918 (Homo sapiens) Explore P00918  Go to UniProtKB:  P00918
PHAROS:  P00918 GTEx:  ENSG00000104267

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
3NT (Subject of Investigation/LOI)	C [auth A]	3-NITROTOLUENE C7 H7 N O2 QZYHIOPPLUPUJF-UHFFFAOYSA-N
ZN (Subject of Investigation/LOI)	B [auth A]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.20 Å
• R-Value Free: 0.155 
• R-Value Work: 0.125 
• R-Value Observed: 0.126 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 42.249	α = 90
b = 41.364	β = 104.33
c = 72.187	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling
REFMAC	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-12-20 
Deposition Author(s): Kim, C.U., Kim, J.K.

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Funding Organization	Location	Grant Number
Other private	Korea, Republic Of	SSTF-BA1702-04 (Samsung Science and Technology Foundation)

Revision History  

• Version 1.0: 2023-12-20
  Type: Initial release