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 

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.Mol.Biol. 2: 569-576

  • Primary Citation of Related Structures:  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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ENDOGLUCANASE CELC
A
343Clostridium thermocellumGene Names: celC
EC: 3.2.1.4
Find proteins for P0C2S3 (Clostridium thermocellum)
Go to UniProtKB:  P0C2S3
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.215 
  • R-Value Work: 0.168 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 51.400α = 90.00
b = 84.330β = 90.00
c = 87.500γ = 90.00
Software Package:
Software NamePurpose
ARP/wARPmodel building
X-PLORphasing
X-PLORmodel building
DENZOdata reduction
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1996-01-29
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance