7QSI | pdb_00007qsi

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 (Depositor), 0.184 (DCC) 
• R-Value Work: 
  0.163 (Depositor), 0.163 (DCC) 

Starting Model: experimental

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 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.
Neurofarba Department, Universita Degli Studi di Firenze, Florence, Italy.
Pharmaceutical Technology Transfer Center, Ushinsky Yaroslavl State Pedagogical University, Yaroslavl, 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 
• Modeled 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 (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
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 (Depositor), 0.184 (DCC) 
• R-Value Work:  0.163 (Depositor), 0.163 (DCC) 

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