1XYZ

A COMMON PROTEIN FOLD AND SIMILAR ACTIVE SITE IN TWO DISTINCT FAMILIES OF BETA-GLYCANASES


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.40 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.183 
  • R-Value Observed: 0.183 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

A common protein fold and similar active site in two distinct families of beta-glycanases.

Dominguez, R.Souchon, H.Spinelli, S.Dauter, Z.Wilson, K.S.Chauvaux, S.Beguin, P.Alzari, P.M.

(1995) Nat Struct Biol 2: 569-576

  • DOI: https://doi.org/10.1038/nsb0795-569
  • Primary Citation of Related Structures:  
    1CEC, 1XYZ

  • PubMed Abstract: 

    The structure of Clostridium thermocellum endoglucanase CelC, a member of the largest cellulase family (family A), has been determined at 2.15 A resolution. The protein folds into an (alpha/beta)8 barrel, with a deep active-site cleft generated by the insertion of a helical subdomain. The structure of the catalytic core of xylanase XynZ, which belongs to xylanase family F, has been determined at 1.4 A resolution. In spite of significant differences in substrate specificity and structure (including the absence of the helical subdomain), the general polypeptide folding pattern, architecture of the active site and catalytic mechanism of XynZ and CelC are similar, suggesting a common evolutionary origin.


  • Organizational Affiliation

    Unité d'Immunologie Structurale, URA 1961 CNRS, Institute Pasteur, Paris, France.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
1,4-BETA-D-XYLAN-XYLANOHYDROLASE
A, B
347Acetivibrio thermocellusMutation(s): 0 
EC: 3.2.1.8
UniProt
Find proteins for P10478 (Acetivibrio thermocellus (strain ATCC 27405 / DSM 1237 / JCM 9322 / NBRC 103400 / NCIMB 10682 / NRRL B-4536 / VPI 7372))
Explore P10478 
Go to UniProtKB:  P10478
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP10478
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.40 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.183 
  • R-Value Observed: 0.183 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 47.1α = 100.54
b = 51.1β = 83.79
c = 70.74γ = 101.64
Software Package:
Software NamePurpose
ARP/wARPmodel building
X-PLORmodel building
X-PLORrefinement
DENZOdata reduction
X-PLORphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1996-01-29
    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: 2024-02-14
    Changes: Data collection, Database references