4V1Z | pdb_00004v1z

The 3-D structure of the cellobiohydrolase, Cel7A, from Aspergillus fumigatus

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.78 Å
  • R-Value Free: 
    0.189 (Depositor), 0.189 (DCC) 
  • R-Value Work: 
    0.144 (Depositor) 
  • R-Value Observed: 
    0.146 (Depositor) 

Starting Model: experimental
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Literature

The Three-Dimensional Structure of the Cellobiohydrolase Cel7A from Aspergillus Fumigatus at 1.5 A Resolution

Moroz, O.V., Maranta, M., Shaghasi, T., Harris, P.V., Wilson, K.S., Davies, G.J.

(2015) Acta Crystallogr Sect F Struct Biol Cryst Commun 71: 114

  • DOI: https://doi.org/10.1107/S2053230X14027307
  • Primary Citation Related Structures: 
    4V1Z, 4V20

  • PubMed Abstract: 

    The enzymatic degradation of plant cell-wall cellulose is central to many industrial processes, including second-generation biofuel production. Key players in this deconstruction are the fungal cellobiohydrolases (CBHs), notably those from family GH7 of the carbohydrate-active enzymes (CAZY) database, which are generally known as CBHI enzymes. Here, three-dimensional structures are reported of the Aspergillus fumigatus CBHI Cel7A solved in uncomplexed and disaccharide-bound forms at resolutions of 1.8 and 1.5 Å, respectively. The product complex with a disaccharide in the +1 and +2 subsites adds to the growing three-dimensional insight into this family of industrially relevant biocatalysts.

    • Organizational Affiliation: 
    • Department of Chemistry, University of York, York Structural Biology Laboratory, York YO10 5DD, England.

Macromolecule Content 

  • Total Structure Weight: 47.49 kDa 
  • Atom Count: 3,912 
  • Modeled Residue Count: 440 
  • Deposited Residue Count: 440 
  • Unique protein chains: 1

Macromolecules

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|  3D Structure
Entity ID: 1
MoleculeChains  Sequence LengthOrganismDetailsImage
CELLOBIOHYDROLASE440Aspergillus fumigatusMutation(s): 0 
EC: 3.2.1.91
UniProt
Find proteins for Q4WM08 (Aspergillus fumigatus (strain ATCC MYA-4609 / CBS 101355 / FGSC A1100 / Af293))
Explore Q4WM08 
Go to UniProtKB:  Q4WM08
Entity Groups
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ4WM08
Glycosylation
Glycosylation Sites: 1
Sequence Annotations
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Reference Sequence

Small Molecules

Modified Residues  1 Unique
IDChains TypeFormula2D DiagramParent
PCA
Query on PCA
A
L-PEPTIDE LINKINGC5 H7 N O3GLN

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.78 Å
  • R-Value Free:  0.189 (Depositor), 0.189 (DCC) 
  • R-Value Work:  0.144 (Depositor) 
  • R-Value Observed: 0.146 (Depositor) 
Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 79.23α = 90
b = 131.39β = 90
c = 45.92γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOLREPphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-01-14
    Type: Initial release
  • Version 1.1: 2015-02-04
    Changes: Database references
  • Version 1.2: 2018-04-25
    Changes: Advisory, Data collection
  • Version 2.0: 2020-03-11
    Changes: Data collection, Derived calculations, Other, Polymer sequence
  • Version 2.1: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Data collection, Derived calculations, Structure summary
  • Version 2.2: 2024-01-10
    Changes: Advisory, Data collection, Database references, Refinement description, Structure summary
  • Version 2.3: 2024-10-16
    Changes: Structure summary