7QSI

human Carbonic Anhydrase II in complex with indoline-1-sulfonamide

• PDB DOI: https://doi.org/10.2210/pdb7QSI/pdb

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


• Deposited: 2022-01-13 Released: 2023-01-25 
• Deposition Author(s): Angeli, A., Ferraroni, M.
• Funding Organization(s): Not funded

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.30 Å
• R-Value Free: 0.184 
• R-Value Work: 0.163 

Literature

Diversely substituted sulfamides for fragment-based drug discovery of carbonic anhydrase inhibitors: synthesis and inhibitory profile.

Sharonova, T., Zhmurov, P., Kalinin, S., Nocentini, A., Angeli, A., Ferraroni, M., Korsakov, M., Supuran, C.T., Krasavin, M.

(2022) J Enzyme Inhib Med Chem 37: 857-865

• PubMed: 35296197 
• DOI: https://doi.org/10.1080/14756366.2022.2051023
• Primary Citation of Related Structures:  
  7QSI


• PubMed Abstract: 
  

  A series of sulfamide fragments has been synthesised and investigated for human carbonic anhydrase inhibition. One of the fragments showing greater selectivity for cancer-related isoforms h CA IX and XII was co-crystalized with h CA II showing significant potential for fragment periphery evolution via fragment growth and linking. These opportunities will be identified in the future via the screening of this fragment structure for co-operative carbonic anhydrase binding with other structurally diverse fragments.[Figure: see text].

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Organizational Affiliation: 

Institute of Chemistry, Saint Petersburg State University, Saint Petersburg, Russia.

Biological Assembly 1  

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

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

Macromolecule Content

• Total Structure Weight: 29.64 kDa 
• Atom Count: 2,337 
• 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 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
EWF (Subject of Investigation/LOI)	D [auth AAA]	2,3-dihydroindole-1-sulfonamide C8 H10 N2 O2 S IWPJHISUYDXHGJ-UHFFFAOYSA-N
GOL (Subject of Investigation/LOI)	C [auth AAA]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
ZN (Subject of Investigation/LOI)	B [auth AAA]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.30 Å
• R-Value Free: 0.184 
• R-Value Work: 0.163 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 42.36	α = 90
b = 41.56	β = 104.495
c = 72.07	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: 2023-01-25 
Deposition Author(s): Angeli, A., Ferraroni, M.

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Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2023-01-25
  Type: Initial release
  
• Version 1.1: 2024-01-31
  Changes: Data collection, Refinement description
• Version 1.2: 2024-02-07
  Changes: Database references