3P55 | pdb_00003p55

Human carbonic anhydrase II in complex with p-(4-ferrocenyl-1H-1,2,3-triazol-1-yl)benzenesulfonamide

• PDB DOI: https://doi.org/10.2210/pdb3P55/pdb

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


• Deposited: 2010-10-07 Released: 2011-10-12 
• Deposition Author(s): Salmon, A.J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 
  0.223 (Depositor), 0.188 (DCC) 
• R-Value Work: 
  0.187 (Depositor), 0.182 (DCC) 

Starting Model: experimental

Literature

Protein crystal structures with ferrocene and ruthenocene-based enzyme inhibitors.

Salmon, A.J., Williams, M.L., Hofmann, A., Poulsen, S.A.

(2012) Chem Commun (Camb) 48: 2328-2330

• PubMed: 22258283 
• DOI: https://doi.org/10.1039/c2cc15625c
• Primary Citation Related Structures: 
  3P3H, 3P3J, 3P44, 3P55


• PubMed Abstract: 
  

  We have determined the protein X-ray crystal structures of four organometallic inhibitors in complex with their target enzyme carbonic anhydrase II. The barrel-shaped hydrophobic ferrocene and ruthenocene moieties have provided a structure-based avenue to better occupy the hydrophobic binding patch within the enzyme active site.

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Organizational Affiliation: 
• Eskitis Institute for Cell and Molecular Therapies, Griffith University, Nathan, Queensland 4111, Australia.

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: 29.94 kDa 
• Atom Count: 2,260 
• Modeled Residue Count: 257 
• Deposited Residue Count: 260 
• Unique protein chains: 1

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 GTEx:  ENSG00000104267

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
670	B [auth A]	p-(4-ferrocenyl-1H-1,2,3-triazol-1-yl)benzenesulfonamide C18 H8 Fe N4 O2 S SUIAZEHIJKZPJZ-UHFFFAOYSA-N
GOL	C [auth A], D [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
ZN	E [auth A]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free:  0.223 (Depositor), 0.188 (DCC) 
• R-Value Work:  0.187 (Depositor), 0.182 (DCC) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 42.4	α = 90
b = 41.6	β = 104.64
c = 72.23	γ = 90

Software Package:

Software Name	Purpose
Blu-Ice	data collection
CNS	refinement
MOSFLM	data reduction
SCALA	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2011-10-12 
Deposition Author(s): Salmon, A.J.

Revision History  

• Version 1.0: 2011-10-12
  Type: Initial release
  
• Version 1.1: 2012-02-08
  Changes: Database references
• Version 1.2: 2013-08-28
  Changes: Database references
• Version 1.3: 2023-11-01
  Changes: Data collection, Database references, Derived calculations, Refinement description