7ZL6

Azosemide in complex with human Carbonic anhydrase II (hCA II)

• PDB DOI: https://doi.org/10.2210/pdb7ZL6/pdb

• Classification: LYASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2022-04-14 Released: 2023-04-26 
• Deposition Author(s): Angeli, A., Ferraroni, M.
• Funding Organization(s): Not funded

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.38 Å
• R-Value Free: 0.185 
• R-Value Work: 0.161 

Literature

Sulfonamide diuretic azosemide as an efficient carbonic anhydrase inhibitor

Ferraroni, M., Angeli, A., Pinteala, M., Supuran, C.T.

(2022) J Mol Struct 1268: 133672

• DOI: https://doi.org/10.1016/j.molstruc.2022.133672

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 29.73 kDa 
• Atom Count: 2,353 
• Modelled Residue Count: 258 
• Deposited Residue Count: 260 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Carbonic anhydrase 2	A [auth AAA]	260	Homo sapiens	Mutation(s): 0  Gene Names: CA2 EC: 4.2.1.1
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
IWE (Subject of Investigation/LOI)	C [auth AAA]	Azosemide C12 H11 Cl N6 O2 S2 HMEDEBAJARCKCT-UHFFFAOYSA-N
ZN	B [auth AAA]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.38 Å
• R-Value Free: 0.185 
• R-Value Work: 0.161 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 42.64	α = 90
b = 41.58	β = 104.522
c = 72.2	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XSCALE	data scaling
REFMAC	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-04-26 
Deposition Author(s): Angeli, A., Ferraroni, M.

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Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2023-04-26
  Type: Initial release
  
• Version 1.1: 2023-11-08
  Changes: Data collection, Database references
• Version 1.2: 2024-02-07
  Changes: Refinement description