1GCY

HIGH RESOLUTION CRYSTAL STRUCTURE OF MALTOTETRAOSE-FORMING EXO-AMYLASE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.6 Å
  • R-Value Free: 0.304 
  • R-Value Work: 0.259 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystallization and structural analysis of intact maltotetraose-forming exo-amylase from Pseudomonas stutzeri.

Mezaki, Y.Katsuya, Y.Kubota, M.Matsuura, Y.

(2001) Biosci.Biotechnol.Biochem. 65: 222-225

  • DOI: 10.1271/bbb.65.222

  • PubMed Abstract: 
  • The intact maltotetraose-forming exo-amylase from Pseudomonas stutzeri (G4-1), which has a raw starch binding domain, has been crystallized. The structure was identified (PDB entry 1GCY) by the molecular replacement method using the structure of its ...

    The intact maltotetraose-forming exo-amylase from Pseudomonas stutzeri (G4-1), which has a raw starch binding domain, has been crystallized. The structure was identified (PDB entry 1GCY) by the molecular replacement method using the structure of its catalytic domain (G4-2). The result showed that the raw starch binding domain is in a disordered state, the corresponding electron densities being almost invisible. Superposition of these two enzyme forms showed evidence for the possible location of the raw starch binding domain (SBD). This crystal is a novel case, in that it forms a regular lattice incorporating flexibly bound SBD in the channel of crystal packing of the catalytic domains.


    Related Citations: 
    • Crystal Structure of a Maltotetraose-forming Exo-amylase from Pseudomonas stutzeri
      Morishita, Y.,Hasegawa, K.,Matsuura, Y.,Katsube, Y.,Kubota, M.,Sakai, S.
      (1997) J.Mol.Biol. 267: 661
    • Crystal Structure of a Mutant Maltotetraose-forming Exo-amylase Cocrystallized with Maltopentaose
      Yoshioka, Y.,Hasegawa, K.,Matsuura, Y.,Katsube, Y.,Kubota, M.
      (1997) J.Mol.Biol. 271: 619


    Organizational Affiliation

    Hyogo Prefectural Institute of Industrial Research, Kobe, Japan. mezaki@hyogo-kg.go.jp




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
GLUCAN 1,4-ALPHA-MALTOTETRAHYDROLASE
A
527Pseudomonas stutzeriGene Names: amyP
EC: 3.2.1.60
Find proteins for P13507 (Pseudomonas stutzeri)
Go to UniProtKB:  P13507
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: 1.6 Å
  • R-Value Free: 0.304 
  • R-Value Work: 0.259 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 69.420α = 90.00
b = 171.660β = 90.00
c = 46.350γ = 90.00
Software Package:
Software NamePurpose
X-PLORphasing
X-PLORrefinement
X-PLORmodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-08-30
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance