1CEC

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.215 
  • R-Value Work: 0.168 
  • R-Value Observed: 0.168 

wwPDB Validation 3D Report Full Report


This is version 1.2 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: 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 th ...

    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.


    Related Citations: 
    • Characterization of Two Crystal Forms of Clostridium Thermocellum Endoglucanase Celc
      Dominguez, R., Souchon, H., Alzari, P.M.
      (1994) Proteins 19: 158

    Organizational Affiliation

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



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ENDOGLUCANASE CELCA343Hungateiclostridium thermocellumMutation(s): 0 
Gene Names: MC1061celC
EC: 3.2.1.4
Find proteins for P0C2S3 (Hungateiclostridium thermocellum)
Explore P0C2S3 
Go to UniProtKB:  P0C2S3
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.215 
  • R-Value Work: 0.168 
  • R-Value Observed: 0.168 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 51.4α = 90
b = 84.33β = 90
c = 87.5γ = 90
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 

  • 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