6GWU

Carbonic anhydrase CaNce103p from Candida albicans

• PDB DOI: https://doi.org/10.2210/pdb6GWU/pdb

• Classification: LYASE
• Organism(s): Candida albicans
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2018-06-26 Released: 2018-11-07 
• Deposition Author(s): Brynda, J., Dostal, J., Heidingsfeld, O., Machacek, S., Blaha, J., Pichova, I.
• Funding Organization(s): Czech Science Foundation, Ministry of Education (Czech Republic)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.279 
• R-Value Work: 0.241 
• R-Value Observed: 0.241 

Literature

Crystal structure of carbonic anhydrase CaNce103p from the pathogenic yeast Candida albicans.

Dostal, J., Brynda, J., Blaha, J., Machacek, S., Heidingsfeld, O., Pichova, I.

(2018) BMC Struct Biol 18: 14-14

• PubMed: 30367660 
• DOI: https://doi.org/10.1186/s12900-018-0093-4
• Primary Citation of Related Structures:  
  6GWU


• PubMed Abstract: 
  

  The pathogenic yeast Candida albicans can proliferate in environments with different carbon dioxide concentrations thanks to the carbonic anhydrase CaNce103p, which accelerates spontaneous conversion of carbon dioxide to bicarbonate and vice versa. Without functional CaNce103p, C. albicans cannot survive in atmospheric air. CaNce103p falls into the β-carbonic anhydrase class, along with its ortholog ScNce103p from Saccharomyces cerevisiae. The crystal structure of CaNce103p is of interest because this enzyme is a potential target for surface disinfectants.

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Organizational Affiliation: 

Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo náměstí 2, 166 10, Prague, Czech Republic.

Biological Assembly 1  

Global Symmetry: Dihedral - D2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

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

Biological Assembly Evidence: homology

Macromolecule Content

• Total Structure Weight: 93.2 kDa 
• Atom Count: 6,269 
• Modelled Residue Count: 819 
• Deposited Residue Count: 832 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Carbonic anhydrase	A, B, C, D	208	Candida albicans	Mutation(s): 0  Gene Names: NCE103, CAALFM_C301300CA, CaO19.1721, CaO19.9289 EC: 4.2.1.1
UniProt
Find proteins for Q5AJ71 (Candida albicans (strain SC5314 / ATCC MYA-2876)) Explore Q5AJ71  Go to UniProtKB:  Q5AJ71

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PGE	K [auth B]	TRIETHYLENE GLYCOL C6 H14 O4 ZIBGPFATKBEMQZ-UHFFFAOYSA-N
PEG	H [auth A], I [auth A]	DI(HYDROXYETHYL)ETHER C4 H10 O3 MTHSVFCYNBDYFN-UHFFFAOYSA-N
BME	F [auth A], G [auth A], M [auth C], O [auth D]	BETA-MERCAPTOETHANOL C2 H6 O S DGVVWUTYPXICAM-UHFFFAOYSA-N
ZN	E [auth A], J [auth B], L [auth C], N [auth D]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.279 
• R-Value Work: 0.241 
• R-Value Observed: 0.241 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 69.363	α = 90
b = 90.28	β = 90
c = 167.105	γ = 90

Software Package:

Software Name	Purpose
XDS	data reduction
XSCALE	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
MOLREP	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2018-11-07 
Deposition Author(s): Brynda, J., Dostal, J., Heidingsfeld, O., Machacek, S., Blaha, J., Pichova, I.

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Funding Organization	Location	Grant Number
Czech Science Foundation	Czech Republic	GA17-08343S
Ministry of Education (Czech Republic)	Czech Republic	LO1302

Revision History  

• Version 1.0: 2018-11-07
  Type: Initial release
  
• Version 1.1: 2024-01-17
  Changes: Data collection, Database references, Derived calculations, Refinement description