1G45

CARBONIC ANHYDRASE II (F131V) COMPLEXED WITH 4-(AMINOSULFONYL)-N-[(2-FLUOROPHENYL)METHYL]-BENZAMIDE

• PDB DOI: https://doi.org/10.2210/pdb1G45/pdb

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


• Deposited: 2000-10-26 Released: 2000-11-08 
• Deposition Author(s): Kim, C.-Y., Chang, J.S., Doyon, J.B., Baird Jr., T.T., Fierke, C.A., Jain, A., Christianson, D.W.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.83 Å
• R-Value Free: 0.239 
• R-Value Work: 0.181 

Literature

Contribution of Flourine to Protein-ligand Affinity in the Binding of Flouroaromatic Inhibitors to Carbonic Anhydrase II

Kim, C.-Y., Chang, J.S., Doyon, J.B., Baird Jr., T.T., Fierke, C.A., Jain, A., Christianson, D.W.

(2000) J Am Chem Soc 122: 12125-12134

• DOI: https://doi.org/10.1021/ja002627n

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 29.68 kDa 
• Atom Count: 2,249 
• Modelled Residue Count: 258 
• Deposited Residue Count: 259 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CARBONIC ANHYDRASE II	A	259	Homo sapiens	Mutation(s): 1  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
FSB	D [auth A]	N-(2-FLUORO-BENZYL)-4-SULFAMOYL-BENZAMIDE C14 H13 F N2 O3 S ULYMHSXFSKOHGH-UHFFFAOYSA-N
HG	C [auth A]	MERCURY (II) ION Hg BQPIGGFYSBELGY-UHFFFAOYSA-N
ZN	B [auth A]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Binding Affinity Annotations
ID	Source	Binding Affinity
FSB	PDBBind:  1G45	Kd: 2.3 (nM) from 1 assay(s)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.83 Å
• R-Value Free: 0.239 
• R-Value Work: 0.181 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 42.89	α = 90
b = 41.92	β = 104.71
c = 72.85	γ = 90

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
DENZO	data reduction
SCALEPACK	data scaling
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2000-11-08 
Deposition Author(s): Kim, C.-Y., Chang, J.S., Doyon, J.B., Baird Jr., T.T., Fierke, C.A., Jain, A., Christianson, D.W.

Revision History  

• Version 1.0: 2000-11-08
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2018-04-04
  Changes: Data collection
• Version 1.4: 2018-04-25
  Changes: Data collection, Derived calculations, Structure summary
• Version 1.5: 2021-10-27
  Changes: Database references, Derived calculations
• Version 1.6: 2024-02-07
  Changes: Data collection