Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

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

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

Macromolecule Content

• Total Structure Weight: 29977.63 
• Atom Count: 2125 
• Residue Count: 260 
• Unique protein chains: 1

3M98

Crystal structure of human carbonic anhydrase isozyme II with 5-(1H-benzimidazol-1-ylacetyl)-2-chlorobenzenesulfonamide

• DOI: 10.2210/pdb3M98/pdb

• Classification: LYASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli


• Deposited: 2010-03-21 Released: 2011-03-02 
• Deposition Author(s): Grazulis, S., Manakova, E., Golovenko, D.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.5 Å
• R-Value Free: 0.184 
• R-Value Work: 0.135 

Literature

Crystal structure of human carbonic anhydrase isozyme II with 5-(1H-benzimidazol-1-ylacetyl)-2-chlorobenzenesulfonamide

Capkauskaite, E., Baranauskiene, L., Grazulis, S., Manakova, E., Golovenko, D., Matulis, D.

To be published.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Carbonic anhydrase 2	A	260	Homo sapiens	Mutation(s): 0  Gene Names: CA2 EC: 4.2.1.1
Find proteins for P00918 (Homo sapiens) Go to Gene View: CA2 Go to UniProtKB:  P00918

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
E02	A	5-(1H-benzimidazol-1-ylacetyl)-2-chlorobenzenesulfonamide C15 H12 Cl N3 O3 S XXDZSNJTAQNIAQ-UHFFFAOYSA-N
ZN	A	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N
DMS	A	DIMETHYL SULFOXIDE C2 H6 O S IAZDPXIOMUYVGZ-UHFFFAOYSA-N
MES	A	2-(N-MORPHOLINO)-ETHANESULFONIC ACID C6 H13 N O4 S SXGZJKUKBWWHRA-UHFFFAOYSA-N

External Ligand Annotations
ID	Binding Affinity (Sequence Identity %)
E02	Kd: 530 - 1600 nM (100) BINDINGDB

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.5 Å
• R-Value Free: 0.184 
• R-Value Work: 0.135 
• Space Group: P 1 2₁ 1

Unit Cell:

Length (Å)	Angle (°)
a = 42.233	α = 90.00
b = 41.112	β = 104.05
c = 72.109	γ = 90.00

Software Package:

Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
MAR345	data collection
REFMAC	refinement
PDB_EXTRACT	data extraction

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2010-03-21 
• Released Date: 2011-03-02 
• Deposition Author(s): Grazulis, S., Manakova, E., Golovenko, D.

Revision History 

• Version 1.0: 2011-03-02
  Type: Initial release
• Version 1.1: 2011-07-13
  Type: Version format compliance
• Version 1.2: 2017-11-08
  Type: Refinement description