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The role of an inner loop in the catalytic mechanism of soybean beta-amylase
1WDQ
Primary Citation
 
 
  •   Molecular Description Hide
    Classification: Hydrolase
    Structure Weight: 57128.69
    Molecule: Beta-amylase
    Polymer: 1 Type: protein Length: 495
    Chains: A
    EC#: 3.2.1.2   
    Mutation: T342V
    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 
    1WDR  the same protein, mutant (T342S) 
    1WDS  the same protein, mutant (T342A) 
     
  •   Ligand Chemical Component Hide
    Identifier Formula Name View Interactions
    MAL
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    MAL C12 H22 O11
    MALTOSE
    MAL:1WDQ
    SO4
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    SO4 O4 S
    SULFATE ION
     
  •   External Ligand Annotations Hide
    Identifier   Binding Affinity (Sequence Identity %)
    MAL
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    MAL
    N/Ain BindingDB
    Kd: 10450000 nM - data from BindingMOAD  
    Kd: 10450000 nM - data from PDBbind  
     
  •   External Domain Annotations Hide
     
  •   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
     
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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]:   1.28
    R-Value: 0.135 (obs.)
    R-Free: 0.174
    Space Group: P 31 2 1
    Unit Cell:
      Length [Å] Angles [°]
    a = 84.99 α = 90.00 
    b = 84.99 β = 90.00 
    c = 144.02 γ = 120.00