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High resolution structure of a potent, cyclic protease inhibitor from sunflower seeds
1SFI
Primary Citation
 
 
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  •   Molecular Description Hide
    Classification: Hydrolase/hydrolase Inhibitor
    Structure Weight: 25188.48
    Molecule: TRYPSIN
    Polymer: 1 Type: protein Length: 223
    Chains: A
    EC#: 3.4.21.4   
    Organism Bos taurus
    UniProtKB:   Protein Feature View | Search PDB | P00760  
    Molecule: Trypsin inhibitor 1
    Polymer: 2 Type: protein Length: 14
    Chains: I
    Details: CYCLIC PEPTIDE
    Organism Helianthus annuus
    Gene Name sfti1
    UniProtKB:   Protein Feature View | Search PDB | Q4GWU5  
     
  •   Source Hide
    Polymer: 1
    Scientific Name: Bos taurus   Taxonomy   Common Name: Cattle  
    Polymer: 2
    Scientific Name: Helianthus annuus   Taxonomy   Common Name: Common sunflower  
     
  •   Ligand Chemical Component Hide
    Identifier Formula Name Interactions
    CA
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    Download      		CA Ca
    CALCIUM ION
    SO4
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    Download      		SO4 O4 S
    SULFATE ION
     
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Data in orange boxes are gathered from external resources (when available).
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  Biological Assembly       
Biological assembly 1 assigned by authors and generated by PISA (software)
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  •   Deposition Summary Hide
    Authors:   Luckett, S.,  Garcia, R.S.,  Barker, J.J.,  Konarev, A.V.,  Shewry, P.,  Clarke, A.R.,  Brady, R.L.

    Deposition:   1998-12-16
    Release:   1999-07-09
    Last Modified (REVDAT):   2011-07-13
     
  •   Revision History    Hide
    Mouse over text for details
    2011-07-13
    Atom nomenclature
    2011-07-13
    Binding sites and description
    2011-07-13
    Non-polymer description
    2011-07-13
    Function and keywords
    2011-07-13
    Linkage
    2011-07-13
    Sequence database correspondence
    2011-07-13
    Polymer description
    2011-07-13
    Version format compliance
     
  •   Experimental Details Hide
    Method:   X-RAY DIFFRACTION
    Exp. Data:
    N/A
    Resolution[Å]:   1.65
    R-Value: 0.175 (work)
    R-Free: 0.204
    Space Group: P 21 21 21
    Unit Cell:
      Length [Å] Angles [°]
    a = 60.61 α = 90.00 
    b = 64.43 β = 90.00 
    c = 70.62 γ = 90.00