1FLJ | pdb_00001flj

CRYSTAL STRUCTURE OF S-GLUTATHIOLATED CARBONIC ANHYDRASE III

• PDB DOI: https://doi.org/10.2210/pdb1FLJ/pdb

• Classification: LYASE
• Organism(s): Rattus norvegicus
• Mutation(s): No 


• Deposited: 2000-08-14 Released: 2000-09-04 
• Deposition Author(s): Mallis, R.J., Poland, B.W., Chatterjee, T.K., Fisher, R.A., Darmawan, S., Honzatko, R.B., Thomas, J.A.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 
  0.213 (Depositor) 
• R-Value Work: 
  0.155 (Depositor) 
• R-Value Observed: 
  0.155 (Depositor) 

Literature

Crystal structure of S-glutathiolated carbonic anhydrase III.

Mallis, R.J., Poland, B.W., Chatterjee, T.K., Fisher, R.A., Darmawan, S., Honzatko, R.B., Thomas, J.A.

(2000) FEBS Lett 482: 237-241

• PubMed: 11024467 
• DOI: https://doi.org/10.1016/s0014-5793(00)02022-6
• Primary Citation Related Structures: 
  1FLJ


• PubMed Abstract: 
  

  S-Glutathiolation of carbonic anhydrase III (CAIII) occurs rapidly in hepatocytes under oxidative stress. The crystal structure of the S-glutathiolated CAIII from rat liver reveals covalent adducts on cysteines 183 and 188. Electrostatic charge and steric contacts at each modification site inversely correlate with the relative rates of reactivity of these cysteines toward glutathione (GSH). Diffuse electron density associated with the GSH adducts suggests a lack of preferred bonding interactions between CAIII and the glutathionyl moieties. Hence, the GSH adducts are available for binding by a protein capable of reducing this mixed disulfide. These properties are consistent with the participation of CAIII in the protection/recovery from the damaging effects of oxidative agents.

---

Organizational Affiliation: 
• Department of Biochemistry, Biophysics and Molecular Biology, Iowa State University, Ames, IA 50011, USA.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 30.05 kDa 
• Atom Count: 2,365 
• Modeled Residue Count: 260 
• Deposited Residue Count: 260 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CARBONIC ANHYDRASE III	A	260	Rattus norvegicus	Mutation(s): 0  EC: 4.2.1.1
UniProt
Find proteins for P14141 (Rattus norvegicus) Explore P14141  Go to UniProtKB:  P14141

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GSH	C [auth A], D [auth A]	Glutathione C10 H17 N3 O6 S RWSXRVCMGQZWBV-WDSKDSINSA-N
ZN	B [auth A]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Biologically Interesting Molecules (External Reference) 

1 Unique

Entity ID: 3
ID	Chains	Name	Type/Class	2D Diagram	3D Interactions
PRD_002593 (GSH)	C [auth A], D [auth A]	Glutathione	Peptide-like / Oxidation-reduction

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free:  0.213 (Depositor) 
• R-Value Work:  0.155 (Depositor) 
• R-Value Observed: 0.155 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 41.25	α = 90
b = 44.73	β = 99.73
c = 66.91	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2000-09-04 
Deposition Author(s): Mallis, R.J., Poland, B.W., Chatterjee, T.K., Fisher, R.A., Darmawan, S., Honzatko, R.B., Thomas, J.A.

Revision History  

• Version 1.0: 2000-09-04
  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: 2011-12-21
  Changes: Non-polymer description
• Version 1.4: 2017-10-04
  Changes: Refinement description
• Version 1.5: 2025-03-26
  Changes: Data collection, Database references, Derived calculations, Structure summary