1B0I

ALPHA-AMYLASE FROM ALTEROMONAS HALOPLANCTIS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.180 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structures of the psychrophilic Alteromonas haloplanctis alpha-amylase give insights into cold adaptation at a molecular level.

Aghajari, N.Feller, G.Gerday, C.Haser, R.

(1998) Structure 6: 1503-1506


  • PubMed Abstract: 
  • . Enzymes from psychrophilic (cold-adapted) microorganisms operate at temperatures close to 0 degreesC, where the activity of their mesophilic and thermophilic counterparts is drastically reduced. It has generally been assumed that thermophily is ass ...

    . Enzymes from psychrophilic (cold-adapted) microorganisms operate at temperatures close to 0 degreesC, where the activity of their mesophilic and thermophilic counterparts is drastically reduced. It has generally been assumed that thermophily is associated with rigid proteins, whereas psychrophilic enzymes have a tendency to be more flexible.


    Related Citations: 
    • Crystal Structures of the Psychrophilic Alpha-amylase from Alteromonas Haloplanctis in Its Native Form and Complexed with an Inhibitor
      Aghajari, N.,Feller, G.,Gerday, C.H.,Haser, R.
      (1998) Protein Sci. 7: 564


    Organizational Affiliation

    Institut de Biologie et Chimie des Protéines UPR 412, CNRS 7 Passage du Vercors 69367 Lyon cedex 07 France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (ALPHA-AMYLASE)
A
453Pseudoalteromonas haloplanktisGene Names: amy
EC: 3.2.1.1
Find proteins for P29957 (Pseudoalteromonas haloplanktis)
Go to UniProtKB:  P29957
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CL
Query on CL

Download SDF File 
Download CCD File 
A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
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: 2.4 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.180 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 56.800α = 90.00
b = 80.300β = 90.00
c = 120.100γ = 90.00
Software Package:
Software NamePurpose
X-PLORrefinement
DENZOdata reduction
AMoREphasing
CCP4data scaling
ROTAVATAdata reduction
ROTAVATAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-11-17
    Type: Initial release
  • Version 1.1: 2008-04-26
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-10-04
    Type: Refinement description