29SZ | pdb_000029sz

Crystal structure of carbonic anhydrase II with 3-(benzylsulfonyl)phenyl sulfamate

• PDB DOI: https://doi.org/10.2210/pdb29SZ/pdb

• Classification: LYASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2026-04-07 Released: 2026-10-21 
• Deposition Author(s): Paketuryte-Latve, V., Smirnov, A., Manakova, E.N., Grazulis, S.
• Funding Organization(s): Not funded

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.12 Å
• R-Value Free: 
  0.182 (Depositor), 0.184 (DCC) 
• R-Value Work: 
  0.155 (Depositor), 0.161 (DCC) 
• R-Value Observed: 
  0.157 (Depositor) 

Starting Model: experimental

Literature

Structure-Affinity and Selectivity of Aryl-Sulfamates as Inhibitors of Carbonic Anhydrase IX

Stancaitis, L., Liberis, M., Baranauskiene, L., Paketuryte-Latve, V., Kvietkauskaite, A., Petrauskas, V., Manakova, E., Smirnov, A., Mickeviciute, A., Juozapaitiene, V., Gedgaudas, M., Kojis, T., Matuliene, J., Grazulis, S., Capkauskaite, E., Matulis, D.

(2026) J Med Chem 69: 22993-23008

• DOI: https://doi.org/10.1021/acs.jmedchem.6c02393

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: isothermal titration calorimetry

Macromolecule Content 

• Total Structure Weight: 29.84 kDa 
• Atom Count: 2,488 
• Modeled 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 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
A1J4I( Subject of Investigation/LOI)	E [auth A]	[3-(phenylmethyl)sulfonylphenyl] sulfamate C13 H13 N O5 S2 UVNCVDVYNKEGSN-UHFFFAOYSA-N
DMS	C [auth A], D [auth A]	DIMETHYL SULFOXIDE C2 H6 O S IAZDPXIOMUYVGZ-UHFFFAOYSA-N
ZN	B [auth A]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.12 Å
• R-Value Free:  0.182 (Depositor), 0.184 (DCC) 
• R-Value Work:  0.155 (Depositor), 0.161 (DCC) 
• R-Value Observed: 0.157 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 42.132	α = 90
b = 41.08	β = 104.42
c = 72.277	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
Aimless	data scaling
MOLREP	phasing
PDB_EXTRACT	data extraction
XDS	data reduction

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2026-10-21 
Deposition Author(s): Paketuryte-Latve, V., Smirnov, A., Manakova, E.N., Grazulis, S.

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Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2026-10-21
  Type: Initial release