4LU3

The crystal structure of the human carbonic anhydrase XIV


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.206 
  • R-Value Work: 0.181 
  • R-Value Observed: 0.181 

wwPDB Validation   3D Report Full Report



Literature

The structural comparison between membrane-associated human carbonic anhydrases provides insights into drug design of selective inhibitors.

Alterio, V.Pan, P.Parkkila, S.Buonanno, M.Supuran, C.T.Monti, S.M.De Simone, G.

(2014) Biopolymers 101: 769-778

  • DOI: 10.1002/bip.22456
  • Primary Citation of Related Structures:  
    4LU3

  • PubMed Abstract: 
  • Carbonic anhydrase isoform XIV (CA XIV) is the last member of the human (h) CA family discovered so far, being localized in brain, kidneys, colon, small intestine, urinary bladder, liver, and spinal cord. It has recently been described as a possible drug ...

    Carbonic anhydrase isoform XIV (CA XIV) is the last member of the human (h) CA family discovered so far, being localized in brain, kidneys, colon, small intestine, urinary bladder, liver, and spinal cord. It has recently been described as a possible drug target for treatment of epilepsy, some retinopathies as well as some skin tumors. Human carbonic anhydrase (hCA) XIV is a membrane-associated protein consisting of an N-terminal extracellular domain, a putative transmembrane region, and a small cytoplasmic tail. In this article, we report the expression, purification, and the crystallographic structure of the entire extracellular domain of this enzyme. The analysis of the structure revealed the typical α-CA fold, in which a 10-stranded β-sheet forms the core of the molecule, while the comparison with all the other membrane associated isoforms (hCAs IV, IX, and XII) allowed to identify the diverse oligomeric arrangement and the sequence and structural differences observed in the region 127-136 as the main factors to consider in the design of selective inhibitors for each one of the membrane associated α-CAs.


    Organizational Affiliation

    Institute of Biostructures and Bioimaging, CNR, Via Mezzocannone 16, 80134, Naples, Italy.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Carbonic anhydrase 14 A279Homo sapiensMutation(s): 0 
Gene Names: CA14UNQ690/PRO1335
EC: 4.2.1.1
Find proteins for Q9ULX7 (Homo sapiens)
Explore Q9ULX7 
Go to UniProtKB:  Q9ULX7
NIH Common Fund Data Resources
PHAROS:  Q9ULX7
Protein Feature View
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  • Reference Sequence
Oligosaccharides

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Entity ID: 2
MoleculeChainsChain Length2D Diagram Glycosylation3D Interactions
alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
B
5 N-Glycosylation Oligosaccharides Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.206 
  • R-Value Work: 0.181 
  • R-Value Observed: 0.181 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 88.61α = 90
b = 88.61β = 90
c = 108.9γ = 90
Software Package:
Software NamePurpose
CrystalCleardata collection
AMoREphasing
CNSrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-01-01
    Type: Initial release
  • Version 1.1: 2014-01-08
    Changes: Other
  • Version 1.2: 2014-05-14
    Changes: Database references
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Atomic model, Data collection, Database references, Derived calculations, Structure summary