1QK0

CEL6A WITH A NON-HYDROLYSABLE CELLOTETRAOSE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.181 
  • R-Value Observed: 0.181 

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Ligand Structure Quality Assessment 


This is version 2.0 of the entry. See complete history


Literature

Crystallographic Evidence for Substrate Ring Distortion and Protein Conformational Changes During Catalysis in Cellobiohydrolase Cel6A from Trichoderma Reesei

Zou, J.-Y.Kleywegt, G.J.Stahlberg, J.Driguez, H.Nerinckx, W.Claeyssens, M.Koivula, A.Teeri, T.T.Jones, T.A.

(1999) Structure 7: 1035

  • DOI: 10.1016/s0969-2126(99)80171-3
  • Primary Citation of Related Structures:  
    1QJW, 1QK0, 1QK2

  • PubMed Abstract: 
  • Cel6A is one of the two cellobiohydrolases produced by Trichoderma reesei. The catalytic core has a structure that is a variation of the classic TIM barrel. The active site is located inside a tunnel, the roof of which is formed mainly by a pair of loops.


    Related Citations: 
    • Three-Dimensional Structure of Cellobiohydrolase II from Trichoderma Reesei
      Rouvinen, J., Bergfors, T., Teeri, T., Knowles, J.K., Jones, T.A.
      (1990) Science 249: 380

    Organizational Affiliation

    Department of Cell and Molecular Biology Uppsala University BMC Box 596, S-751 24, Uppsala, Sweden.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CELLOBIOHYDROLASE CEL6A (FORMERLY CALLED CBH II)A, B363Trichoderma reeseiMutation(s): 0 
Gene Names: cbh2
EC: 3.2.1.91
UniProt
Find proteins for P07987 (Hypocrea jecorina)
Explore P07987 
Go to UniProtKB:  P07987
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP07987
Protein Feature View
Expand
  • Reference Sequence
Oligosaccharides

Help

Entity ID: 2
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
beta-D-glucopyranose-(1-4)-beta-D-xylopyranoseC 2N/A Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G77350QW
GlyCosmos:  G77350QW
GlyGen:  G77350QW
Entity ID: 3
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
alpha-D-glucopyranose-(1-4)-alpha-D-xylopyranoseD 2N/A Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G94034AJ
GlyCosmos:  G94034AJ
GlyGen:  G94034AJ
Small Molecules
Ligands 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
IOB (Subject of Investigation/LOI)
Query on IOB

Download Ideal Coordinates CCD File 
AA [auth B],
O [auth A]
3-IODO-BENZYL ALCOHOL
C7 H7 I O
QGCCNWSXJHGUNL-UHFFFAOYSA-N
 Ligand Interaction
NAG
Query on NAG

Download Ideal Coordinates CCD File 
E [auth A],
F [auth A],
P [auth B],
Q [auth B]
2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
MAN
Query on MAN

Download Ideal Coordinates CCD File 
G [auth A],
H [auth A],
I [auth A],
J [auth A],
K [auth A],
G [auth A],
H [auth A],
I [auth A],
J [auth A],
K [auth A],
L [auth A],
M [auth A],
R [auth B],
S [auth B],
T [auth B],
U [auth B],
V [auth B],
W [auth B],
X [auth B]
alpha-D-mannopyranose
C6 H12 O6
WQZGKKKJIJFFOK-PQMKYFCFSA-N
 Ligand Interaction
IOD
Query on IOD

Download Ideal Coordinates CCD File 
Y [auth B]IODIDE ION
I
XMBWDFGMSWQBCA-UHFFFAOYSA-M
 Ligand Interaction
CO
Query on CO

Download Ideal Coordinates CCD File 
N [auth A],
Z [auth B]
COBALT (II) ION
Co
XLJKHNWPARRRJB-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.181 
  • R-Value Observed: 0.181 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 48.5α = 90
b = 74.69β = 103.19
c = 91.14γ = 90
Software Package:
Software NamePurpose
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
CNSphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1999-09-18
    Type: Initial release
  • Version 1.1: 2016-01-27
    Changes: Data collection, Database references, Derived calculations, Non-polymer description, Other, Refinement description, Version format compliance
  • Version 1.2: 2019-10-23
    Changes: Author supporting evidence, Data collection, Derived calculations, Experimental preparation, Other, Structure summary
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Advisory, Atomic model, Data collection, Derived calculations, Structure summary