2ZE0

Alpha-glucosidase GSJ


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.202 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Crystal structure of GH13 alpha-glucosidase GSJ from one of the deepest sea bacteria

Shirai, T.Hung, V.S.Morinaka, K.Kobayashi, T.Ito, S.

(2008) Proteins 73: 126-133

  • DOI: 10.1002/prot.22044

  • PubMed Abstract: 
  • The crystal structure of the GH13 alpha-glucosidase (GSJ) from deep-sea bacterium Geobacillus sp. strain HTA-462 was determined to a 2.0 A resolution. Comparisons of the GSJ structure with that of other GH13 enzymes with different catalytic activitie ...

    The crystal structure of the GH13 alpha-glucosidase (GSJ) from deep-sea bacterium Geobacillus sp. strain HTA-462 was determined to a 2.0 A resolution. Comparisons of the GSJ structure with that of other GH13 enzymes with different catalytic activities revealed that the catalytic cleft of GSJ was widely opened when compared with the homologues. The wide opening of the catalytic cleft originated from conformational changes of active site residues and disorder of the regions close to the catalytic center. This structural feature of GSJ would explain the ability of this enzyme to accept a wide variety of nonsugar molecules as acceptors in the transglycosylation reaction.


    Related Citations: 
    • Crystallization and preliminary X-ray study of alpha-glucosidase from Geobacillus sp strain HTA-462, one of the deepest sea bacteria
      Shirai, T.,Hung, V.S.,Akita, M.,Hatada, Y.,Ito, S.,Horikoshi, K.
      (2003) Acta Crystallogr.,Sect.D 59: 1278


    Organizational Affiliation

    Department of Bioscience, Nagahama Institute of Bioscience and Technology, 1266 Tamura, Nagahama 526-0829, Japan. t_shirai@nagahama-i-bio.ac.jp




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Alpha-glucosidase
A
555Geobacillus sp. HTA-462Mutation(s): 0 
Gene Names: gsj
EC: 3.2.1.1
Find proteins for Q33E90 (Geobacillus sp. HTA-462)
Go to UniProtKB:  Q33E90
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CA
Query on CA

Download SDF File 
Download CCD File 
A
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.202 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 103.829α = 90.00
b = 90.621β = 109.40
c = 72.285γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
CNSrefinement
REFMACrefinement
HKL-2000data reduction
AMoREphasing
HKL-2000data collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-12-18
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Source and taxonomy, Version format compliance