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The role of an inner loop in the catalytic mechanism of soybean beta-amylase
1WDR
Primary Citation
 
 
  •   Molecular Description Hide
    Classification: Hydrolase
    Structure Weight: 57469.00
    Molecule: Beta-amylase
    Polymer: 1 Type: protein Length: 495
    Chains: A
    EC#: 3.2.1.2   
    Mutation: T342S
    Organism Glycine max
    Gene Name BMY1
    UniProtKB:   Protein Feature View | Search PDB | P10538  
     
  •   Structure Validation Hide

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  •   Related Citations in PDB Entry (REMARK 1) Hide
     
  •   Source Hide
    Polymer: 1
    Scientific Name: Glycine max   Taxonomy   Common Name: Soybean Expression System: Escherichia coli  
     
  •   Related PDB Entries Hide
    Identifier Details
    1BFN  recombinant soybean beta-amylase complexed with beta-cyclodextrin 
    1BYB  soybean beta-amylase complexed with 200mM maltose and complexed with maltotetraose 
    1BYD  soybean beta-amylase reacted with 100mM maltal and complexed with D-deoxymaltose 
    1Q6C  soybean beta-amylase complexed with maltose 
    1V3H  soybean beta-amylase mutant (E186Q) complexed with maltopentaose 
    1V3I  soybean beta-amylase mutant (E380Q) complexed with maltose 
    1WDP  the same protein, wild type 
    1WDQ  the same protein, mutant (T342V) 
    1WDS  the same protein, mutant (T342A) 
     
  •   Ligand Chemical Component Hide
     
  •   External Ligand Annotations Hide
    Identifier   Binding Affinity (Sequence Identity %)
    MAL
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    MAL
    N/Ain BindingDB
    N/Ain BindingMoad
    Kd: 3050000 nM - data from PDBbind  
     
  •   Modified Residues Hide
    Identifier Formula Parent Type
    CME
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    CME C5 H11 N O3 S2 CYS lPeptideLinking
     
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  •   Structural Biology Knowledgebase Data Hide
     
 
Data in orange boxes are gathered from external resources (when available).
 
  Biological Assembly       
Biological assembly 1 assigned by authors
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  •   Deposition Summary Hide
    Authors:   Kang, Y.N.,  Adachi, M.,  Utsumi, S.,  Mikami, B.

    Deposition:   2004-05-17
    Release:   2005-04-05
    Last Modified (REVDAT):   2009-02-24
     
  •   Revision History    Hide
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    2011-07-13
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  •   Experimental Details Hide
    Method:   X-RAY DIFFRACTION
    Exp. Data:
      Structure Factors
    EDS  
    Resolution[Å]:   1.35
    R-Value: 0.130 (obs.)
    R-Free: 0.171
    Space Group: P 31 2 1
    Unit Cell:
      Length [Å] Angles [°]
    a = 85.13 α = 90.00 
    b = 85.13 β = 90.00 
    c = 143.60 γ = 120.00