THE HIGH RESOLUTION X-RAY STRUCTURE OF PAPAIN COMPLEXED WITH FRAGMENTS OF THE TRYPANOSOMA BRUCEI CYSTEINE PROTEASE INHIBITOR ICP.
2CIO
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  •   Molecular Description Hide
    Classification: Hydrolase/inhibitor
    Structure Weight: 37310.12
    Molecule: PAPAIN
    Polymer: 1 Type: protein Length: 212
    Chains: A
    EC#: 3.4.22.2   
    Organism: Carica papaya
    UniProtKB: Protein Feature View | Search PDB | P00784  
    Molecule: INHIBITOR OF CYSTEINE PEPTIDASE
    Polymer: 2 Type: protein Length: 121
    Chains: B
    Details: TWO PEPTIDE FRAGMENTS FROM DIGESTION OF ICP
    Organism: Trypanosoma brucei
    Gene Name: ICP
    UniProtKB: Protein Feature View | Search PDB | Q868H0  
     
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  •   Source Hide
    Polymer: 1
    Scientific Name: Carica papaya   Taxonomy    
    Polymer: 2
    Scientific Name: Trypanosoma brucei   Taxonomy   Expression System: Escherichia coli  
     
  •   Related PDB Entries Hide
    Identifier Details
    1BP4   USE OF PAPAIN AS A MODEL FOR THE STRUCTURE-BASED DESIGN OF CATHEPSIN K INHIBITORS. CRYSTAL STRUCTURES OF TWO PAPAIN INHIBITOR COMPLEXES DEMONSTRATE BINDING TO S '-SUBSITES. 
    1BQI   USE OF PAPAIN AS A MODEL FOR THE STRUCTURE-BASED DESIGN OF CATHEPSIN K INHIBITORS. CRYSTAL STRUCTURES OF TWO PAPAIN INHIBITOR COMPLEXES DEMONSTRATE BINDING TO S '-SUBSITES. 
    1CVZ   CRYSTAL STRUCTURE ANALYSIS OF PAPAIN WITH CLIK148(CATHEPSIN L SPECIFIC INHIBITOR) 
    1EFF   KNOWLEDGE BASED MODEL OF AN INHIBITOR BOUND TO A THIOL(CYSTEIN) PROTEASE, PAPAIN COMPLEXED WITH NAPQI 
    1KHP   MONOCLINIC FORM OF PAPAIN/ZLFG-DAM COVALENT COMPLEX 
    1KHQ   ORTHORHOMBIC FORM OF PAPAIN/ZLFG-DAM COVALENT COMPLEX 
    1PAD   PAPAIN -ACETYL-ALANYL-ALANYL- PHENYLALANYL- METHYLENYLALANYL DERIVATIVE OF CYSTEINE 25 (/ ACAAPACK) 
    1PE6   PAPAIN COMPLEX WITH E-64-C 
    1PIP   PAPAIN COMPLEX WITH SUCCINYL-GLN-VAL-VAL- ALA-ALA-P-NITROANILIDE 
    1POP   PAPAIN COMPLEX WITH LEUPEPTIN (N-ACETYL-L- LEUCYL-L-LEUCYL-L-ARGININAL) 
    1PPD   2-HYDROXYETHYLTHIOPAPAIN - CRYSTAL FORM D 
    1PPN   PAPAIN CYS-25 WITH BOUND ATOM 
    1PPP   PAPAIN COMPLEX WITH E64-C (FORM II) 
    1STF   PAPAIN (CYS 25 CARBOXYMETHYLATED) COMPLEXED WITH THE INHIBITOR STEFIN B (CYSTATIN B) MUTANT WITH CYS I 8 REPLACED BY SER (C( I 8)S) 
    2PAD   PAPAIN -CYSTEINYL DERIVATIVE OF CYSTEINE-25 (/PAPSSCYS) 
    4PAD   PAPAIN -TOSYL-METHYLENYLLYSYL DERIVATIVE OF CYSTEINE-25 (/TLCK) 
    5PAD   PAPAIN -BENZYLOXYCARBONYL-GLYCYL- PHENYLALANYL- METHYLENYLGLYCYL DERIVATIVE (/ZGPGCK) 
    6PAD   PAPAIN -BENZYLOXYCARBONYL- PHENYLALANYL- METHYLENYLALANYL DERIVATIVE (/ZPACK) 
    9PAP   PAPAIN CYS-25 OXIDIZED 
     
  •   Ligand Chemical Component Hide
    Identifier Formula Name View Interactions
    ACT
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    ACT C2 H3 O2
    ACETATE ION
    GOL
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    GOL C3 H8 O3
    GLYCEROL
     
  •   Modified Residues Hide
    Identifier Formula Parent Type
    OCS
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    OCS C3 H7 N O5 S 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 and generated by PQS (software)
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  •   Deposition Summary Hide
    Authors:   Alphey, M.S.,  Hunter, W.N.

    Deposition:   2006-03-24
    Release:   2006-05-18
    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]:   1.50
    R-Value: 0.179 (obs.)
    R-Free: 0.225
    Space Group: P 21 21 21
    Unit Cell:
      Length [Å] Angles [°]
    a = 42.32 α = 90.00 
    b = 46.12 β = 90.00 
    c = 95.70 γ = 90.00