1OCN

Mutant D416A of the CELLOBIOHYDROLASE CEL6A FROM HUMICOLA INSOLENS in complex with a cellobio-derived isofagomine at 1.3 angstrom resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.31 Å
  • R-Value Free: 0.162 
  • R-Value Work: 0.130 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Distortion of a Cellobio-Derived Isofagomine Highlights the Potential Conformational Itinerary of Inverting Beta-Glucosidases

Varrot, A.Macdonald, J.Stick, R.V.Pell, G.Gilbert, H.J.Davies, G.J.

(2003) Chem.Commun.(Camb.) 21: 946


  • PubMed Abstract: 
  • A cellobio-derived isofagomine glycosidase inhibitor (Ki approximately 400 nM) displays an unusual distorted 2,5B (boat) conformation upon binding to cellobiohydrolase Cel6A from Humicola insolens, highlighting the different conformational itinerarie ...

    A cellobio-derived isofagomine glycosidase inhibitor (Ki approximately 400 nM) displays an unusual distorted 2,5B (boat) conformation upon binding to cellobiohydrolase Cel6A from Humicola insolens, highlighting the different conformational itineraries used by various glycosidases, with consequences for the design of therapeutic agents.


    Organizational Affiliation

    Structural Biology Laboratory, Department of Chemistry, The University of York, Heslington, York, UK Y010 5YW.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CELLOBIOHYDROLASE II
A
362Humicola insolensGene Names: cel6A (avi2)
EC: 3.2.1.91
Find proteins for Q9C1S9 (Humicola insolens)
Go to UniProtKB:  Q9C1S9
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
IFM
Query on IFM

Download SDF File 
Download CCD File 
A
5-HYDROXYMETHYL-3,4-DIHYDROXYPIPERIDINE
Afegostat, isofagomine, (3R,4R,5R)-5-(HYDROXYMETHYL)PIPERIDINE-3,4-DIOL
C6 H13 N O3
QPYJXFZUIJOGNX-HSUXUTPPSA-N
 Ligand Interaction
CA
Query on CA

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Download CCD File 
A
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
BGC
Query on BGC

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Download CCD File 
A
BETA-D-GLUCOSE
C6 H12 O6
WQZGKKKJIJFFOK-VFUOTHLCSA-N
 Ligand Interaction
NAG
Query on NAG

Download SDF File 
Download CCD File 
A
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.31 Å
  • R-Value Free: 0.162 
  • R-Value Work: 0.130 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 49.357α = 90.00
b = 69.842β = 113.52
c = 51.950γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
AMoREphasing
SCALEPACKdata scaling
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-05-22
    Type: Initial release
  • Version 1.1: 2015-07-15
    Type: Derived calculations, Non-polymer description, Other, Structure summary, Version format compliance