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: 29.76 kDa 
• Atom Count: 2,406 
• Modelled Residue Count: 258 
• Deposited Residue Count: 260 
• Unique protein chains: 1

 3M40

Crystal structure of human carbonic anhydrase isozyme II with 4-[N-(6-chloro-5-nitropyrimidin-4-yl)amino]benzenesulfonamide

• PDB DOI:  https://doi.org/10.2210/pdb3M40/pdb

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


• Deposited: 2010-03-10 Released: 2010-10-20 
• Deposition Author(s): Grazulis, S., Manakova, E., Golovenko, D.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free: 0.224 
• R-Value Work: 0.154 
• R-Value Observed: 0.161 

Literature

4-[N-(Substituted 4-pyrimidinyl)amino]benzenesulfonamides as inhibitors of carbonic anhydrase isozymes I, II, VII, and XIII

Sudzius, J., Baranauskiene, L., Golovenko, D., Matuliene, J., Michailoviene, V., Torresan, J., Jachno, J., Sukackaite, R., Manakova, E., Grazulis, S., Tumkevicius, S., Matulis, D.

(2010) Bioorg Med Chem 18: 7413-7421

• PubMed: 20889345 
• DOI: https://doi.org/10.1016/j.bmc.2010.09.011
• Primary Citation of Related Structures:  
  3M3X, 3M40, 3M5E, 3MHI, 3MHL, 3MHM, 3MHO


• PubMed Abstract: 
  

A series of 4-[N-(substituted 4-pyrimidinyl)amino]benzenesulfonamides were designed and synthesised. Their binding potencies as inhibitors of selected recombinant human carbonic anhydrase (hCA) isozymes I, II, VII, and XIII were measured using isothermal titration calorimetry and the thermal shift assay. To determine the structural features of inhibitor binding, the crystal structures of several compounds in complex with hCA II were determined. Several compounds exhibited selectivity towards isozymes I, II, and XIII, and some were potent inhibitors of hCA VII.

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Organizational Affiliation: 

Department of Organic Chemistry, Faculty of Chemistry, Vilnius University, Naugarduko 24, LT-03225 Vilnius, Lithuania.

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

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
J45	C [auth A]	4-[(6-chloro-5-nitropyrimidin-4-yl)amino]benzenesulfonamide C10 H8 Cl N5 O4 S DCTSAUVMCCOZNV-UHFFFAOYSA-N
DMS	D [auth A]	DIMETHYL SULFOXIDE C2 H6 O S IAZDPXIOMUYVGZ-UHFFFAOYSA-N
ZN	B [auth A]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Binding Affinity Annotations
ID	Source	Binding Affinity
J45	Binding MOAD:  3M40	Kd: 170 (nM) from 1 assay(s)
	BindingDB:  3M40	Kd: min: 90, max: 170 (nM) from 2 assay(s)
	PDBBind:  3M40	Kd: 170 (nM) from 1 assay(s)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free: 0.224 
• R-Value Work: 0.154 
• R-Value Observed: 0.161 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 42.184	α = 90
b = 41.165	β = 104.54
c = 72.477	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling
PDB_EXTRACT	data extraction
MOLREP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2010-10-20 
Deposition Author(s): Grazulis, S., Manakova, E., Golovenko, D.

Revision History  

• Version 1.0: 2010-10-20
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2017-10-04
  Changes: Data collection, Refinement description