6GXE

Carbonic Anhydrase CAIX mimic in complex with inhibitor JS14

• PDB DOI: https://doi.org/10.2210/pdb6GXE/pdb

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


• Deposited: 2018-06-27 Released: 2019-05-08 
• Deposition Author(s): Brynda, J., Rezacova, P., Pospisilova, K.
• Funding Organization(s): Czech Science Foundation

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.30 Å
• R-Value Free: 0.154 
• R-Value Work: 0.125 
• R-Value Observed: 0.125 

Literature

Inhibitor-Polymer Conjugates as a Versatile Tool for Detection and Visualization of Cancer-Associated Carbonic Anhydrase Isoforms

Pospisilova, K., Knedlik, T., Sacha, P., Kostka, L., Schimer, J., Brynda, J., Kral, V., Cigler, P., Navratil, V., Etrych, T., Subr, V., Kugler, M., Fabry, M., Rezacova, P., Konvalinka, J.

(2019) ACS Omega 

• DOI: https://doi.org/10.1021/acsomega.9b00596

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: homology

Macromolecule Content

• Total Structure Weight: 30.3 kDa 
• Atom Count: 2,363 
• Modelled Residue Count: 257 
• Deposited Residue Count: 257 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Carbonic anhydrase 2	A	257	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
FFH	C [auth A], D [auth A]	3-[2-[2-[2-[2-(aminomethyloxy)ethoxy]ethoxy]ethoxy]ethoxy]-~{N}-[4-[4-[(4-sulfamoylphenyl)carbamoylamino]phenoxy]butyl]propanamide C29 H45 N5 O10 S UDWQBPJNUHSQMR-UHFFFAOYSA-N
DMS	E [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: 1.30 Å
• R-Value Free: 0.154 
• R-Value Work: 0.125 
• R-Value Observed: 0.125 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 41.92	α = 90
b = 41.22	β = 103.89
c = 72.11	γ = 90

Software Package:

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

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2019-05-08 
Deposition Author(s): Brynda, J., Rezacova, P., Pospisilova, K.

---

Funding Organization	Location	Grant Number
Czech Science Foundation	Czech Republic	GA15-05677S

Revision History  

• Version 1.0: 2019-05-08
  Type: Initial release
  
• Version 1.1: 2019-12-25
  Changes: Data collection
• Version 1.2: 2024-05-15
  Changes: Data collection, Database references