1UP6

Structure of the 6-phospho-beta glucosidase from Thermotoga maritima at 2.55 Angstrom resolution in the tetragonal form with manganese, NAD+ and glucose-6-phosphate


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.55 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.200 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

An Unusual Mechanism of Glycoside Hydrolysis Involving Redox and Elimination Steps by a Family 4 Beta-Glycosidase from Thermotoga Maritima.

Yip, V.L.Varrot, A.Davies, G.J.Rajan, S.S.Yang, X.Thompson, J.Anderson, W.F.Withers, S.G.

(2004) J.Am.Chem.Soc. 126: 8354

  • DOI: 10.1021/ja047632w

  • PubMed Abstract: 
  • Among the numerous well-characterized families of glycosidases, family 4 appears to be the anomaly, requiring both catalytic NAD+ and a divalent metal for activity. The unusual cofactor requirement prompted the proposal of a mechanism involving key N ...

    Among the numerous well-characterized families of glycosidases, family 4 appears to be the anomaly, requiring both catalytic NAD+ and a divalent metal for activity. The unusual cofactor requirement prompted the proposal of a mechanism involving key NAD+-mediated redox steps as well as elimination of the glycosidic oxygen. Primary kinetic isotope effects for the 2- and 3-deutero substrate analogues, isotopic exchange with solvent, and structural analysis of a 6-phospho-beta-glucosidase, BglT (E.C. 3.2.1.6), provided evidence in support of the proposed mechanism, which has striking resemblances to that of the sugar dehydratases. Furthermore, analysis of the stereochemical outcome indicated that family 4 enzymes are retaining glycosidases.


    Organizational Affiliation

    Department of Chemistry, University of British Columbia, Vancouver, BC, Canada V6T 1Z1.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
6-PHOSPHO-BETA-GLUCOSIDASE
A, B, C, D, E, F, G, H
416Thermotoga maritima (strain ATCC 43589 / MSB8 / DSM 3109 / JCM 10099)Mutation(s): 0 
Gene Names: bglT
EC: 3.2.1.86
Find proteins for Q9X108 (Thermotoga maritima (strain ATCC 43589 / MSB8 / DSM 3109 / JCM 10099))
Go to UniProtKB:  Q9X108
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MN
Query on MN

Download SDF File 
Download CCD File 
A, C, G
MANGANESE (II) ION
Mn
WAEMQWOKJMHJLA-UHFFFAOYSA-N
 Ligand Interaction
SO4
Query on SO4

Download SDF File 
Download CCD File 
B, D, E, G
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
G6P
Query on G6P

Download SDF File 
Download CCD File 
A, C
ALPHA-D-GLUCOSE-6-PHOSPHATE
C6 H13 O9 P
NBSCHQHZLSJFNQ-DVKNGEFBSA-N
 Ligand Interaction
NAD
Query on NAD

Download SDF File 
Download CCD File 
A, C, G
NICOTINAMIDE-ADENINE-DINUCLEOTIDE
C21 H27 N7 O14 P2
BAWFJGJZGIEFAR-NNYOXOHSSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, B, C, D, E, F, G, H
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.55 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.200 
  • Space Group: P 43 21 2
Unit Cell:
Length (Å)Angle (°)
a = 179.438α = 90.00
b = 179.438β = 90.00
c = 282.911γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
AMoREphasing
SCALEPACKdata scaling
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2004-08-02
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance