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 

wwPDB Validation   3D Report Full Report


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: https://doi.org/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.


  • 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
MoleculeChains Sequence LengthOrganismDetailsImage
CELLOBIOHYDROLASE CEL6A (FORMERLY CALLED CBH II)
A, B
363Trichoderma reeseiMutation(s): 0 
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
Sequence Annotations
Expand
  • Reference Sequence
Oligosaccharides

Help

Entity ID: 2
MoleculeChains Length2D Diagram Glycosylation3D Interactions
beta-D-glucopyranose-(1-4)-beta-D-xylopyranose
C
2N/A
Glycosylation Resources
GlyTouCan:  G77350QW
GlyCosmos:  G77350QW
GlyGen:  G77350QW
Entity ID: 3
MoleculeChains Length2D Diagram Glycosylation3D Interactions
alpha-D-glucopyranose-(1-4)-alpha-D-xylopyranose
D
2N/A
Glycosylation Resources
GlyTouCan:  G94034AJ
GlyCosmos:  G94034AJ
GlyGen:  G94034AJ
Small Molecules
Ligands 5 Unique
IDChains Name / 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
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
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
IOD
Query on IOD

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

Download Ideal Coordinates CCD File 
N [auth A],
Z [auth B]
COBALT (II) ION
Co
XLJKHNWPARRRJB-UHFFFAOYSA-N
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

View Full Validation Report



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