1EDG

SINGLE CRYSTAL STRUCTURE DETERMINATION OF THE CATALYTIC DOMAIN OF CELCCA CARRIED OUT AT 15 DEGREE C

• PDB DOI:  https://doi.org/10.2210/pdb1EDG/pdb

• Classification: CELLULOSE DEGRADATION
• Organism(s): Ruminiclostridium cellulolyticum H10
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 1995-07-07 Released: 1996-08-17 
• Deposition Author(s): Ducros, V., Czjzek, M., Haser, R.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free: 0.220 
• R-Value Work: 0.191 
• R-Value Observed: 0.191 

Literature

Crystal structure of the catalytic domain of a bacterial cellulase belonging to family 5.

Ducros, V., Czjzek, M., Belaich, A., Gaudin, C., Fierobe, H.P., Belaich, J.P., Davies, G.J., Haser, R.

(1995) Structure 3: 939-949

• PubMed: 8535787 
• DOI: https://doi.org/10.1016/S0969-2126(01)00228-3
• Primary Citation of Related Structures:  
  1EDG


• PubMed Abstract: 
  

Cellulases are glycosyl hydrolases--enzymes that hydrolyze glycosidic bonds. They have been widely studied using biochemical and microbiological techniques and have attracted industrial interest because of their potential in biomass conversion and in the paper and textile industries. Glycosyl hydrolases have lately been assigned to specific families on the basis of similarities in their amino acid sequences. The cellulase endoglucanase A produced by Clostridium cellulolyticum (CelCCA) belongs to family 5.

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Related Citations: 

• Characterization of Endoglucanase a from Clostridium Cellulolyticum
  Fierobe, H.P., Gaudin, C., Belaich, A., Loutfi, M., Faure, E., Bagnara, C., Baty, D., Belaich, J.P.
  (1991) J Bacteriol 173: 7956

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Organizational Affiliation: 

Institut de Biologie Structurale et Microbiologie, URA 1296, CNRS, Marseille, France.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 43.14 kDa 
• Atom Count: 3,410 
• Modelled Residue Count: 380 
• Deposited Residue Count: 380 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ENDOGLUCANASE A	A	380	Ruminiclostridium cellulolyticum H10	Mutation(s): 0  Gene Names: celCCA, Ccel_1099 EC: 3.2.1.4
UniProt
Find proteins for P17901 (Ruminiclostridium cellulolyticum (strain ATCC 35319 / DSM 5812 / JCM 6584 / H10)) Explore P17901  Go to UniProtKB:  P17901

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free: 0.220 
• R-Value Work: 0.191 
• R-Value Observed: 0.191 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 52.4	α = 90
b = 76.2	β = 90
c = 113.5	γ = 90

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
DENZO	data reduction
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1996-08-17 
Deposition Author(s): Ducros, V., Czjzek, M., Haser, R.

Revision History  

• Version 1.0: 1996-08-17
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Source and taxonomy, Version format compliance