2CAB | pdb_00002cab

STRUCTURE, REFINEMENT AND FUNCTION OF CARBONIC ANHYDRASE ISOZYMES. REFINEMENT OF HUMAN CARBONIC ANHYDRASE I

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Work: 
    0.193 (Depositor) 

wwPDB Validation 3D Report Full Report

Validation slider image for 2CAB

This is version 1.4 of the entry. See complete history. 

Literature

Structure, refinement, and function of carbonic anhydrase isozymes: refinement of human carbonic anhydrase I

Kannan, K.K., Ramanadham, M., Jones, T.A.

(1984) Ann N Y Acad Sci 429: 49-60

  • DOI: https://doi.org/10.1111/j.1749-6632.1984.tb12314.x
  • Primary Citation Related Structures: 
    2CAB

  • PubMed Abstract: 

    The structure of human erythrocyte carbonic anhydrase I has been refined to a final R value of 19% to 2-A resolution by a combination of least squares refinement and model fitting in a three-dimensional graphics display. About 300 solvent atoms have been located bound to the protein molecule. An interesting hydrogen bond network involving Zn2+, the liganded solvent, side chain groups of Thr-199, Glu-106, Thr-7, and His-64 through two solvent molecules have been found that may be important for the catalytic mechanism of the carbonic anhydrase.

Macromolecule Content 

  • Total Structure Weight: 28.85 kDa 
  • Atom Count: 2,010 
  • Modeled Residue Count: 256 
  • Deposited Residue Count: 260 
  • Unique protein chains: 1

Macromolecules

Find similar proteins by:
|  3D Structure
Entity ID: 1
MoleculeChains  Sequence LengthOrganismDetailsImage
CARBONIC ANHYDRASE FORM B260Homo sapiensMutation(s): 0 
EC: 4.2.1.1 (PDB Primary Data), 4.2.1.69 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for P00915 (Homo sapiens)
Explore P00915 
Go to UniProtKB:  P00915
PHAROS:  P00915
GTEx:  ENSG00000133742 
Entity Groups
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP00915
Sequence Annotations
Expand
Reference Sequence

Small Molecules

Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
ZN

Query on ZN


Download:Ideal Coordinates CCD File
B [auth A]ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Work:  0.193 (Depositor) 
Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 81.5α = 90
b = 73.6β = 90
c = 37.1γ = 90
Software Package:
Software NamePurpose
CORELSrefinement

Structure Validation

View Full Validation Report



View more in-depth experimental data

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1984-02-02
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-11-29
    Changes: Derived calculations, Other
  • Version 1.4: 2024-02-14
    Changes: Data collection, Database references, Derived calculations