2ER9

X-RAY STUDIES OF ASPARTIC PROTEINASE-STATINE INHIBITOR COMPLEXES.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Work: 0.170 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history

Literature

X-ray studies of aspartic proteinase-statine inhibitor complexes.

Cooper, J.B.Foundling, S.I.Blundell, T.L.Boger, J.Jupp, R.A.Kay, J.

(1989) Biochemistry 28: 8596-8603

  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The conformation of a statine-containing renin inhibitor complexed with the aspartic proteinase from the fungus Endothia parasitica (EC 3.4.23.6) has been determined by X-ray diffraction at 2.2-A resolution (R = 0.17). We describe the structure of th ...

    The conformation of a statine-containing renin inhibitor complexed with the aspartic proteinase from the fungus Endothia parasitica (EC 3.4.23.6) has been determined by X-ray diffraction at 2.2-A resolution (R = 0.17). We describe the structure of the complex at high resolution and compare this with a 3.0-A resolution analysis of a bound inhibitor, L-364,099, containing a cyclohexylalanine analogue of statine. The inhibitors bind in extended conformations in the long active-site cleft, and the hydroxyl of the transition-state analogue, statine, interacts strongly with the catalytic aspartates via hydrogen bonds to the essential carboxyl groups. This work provides a detailed structural analysis of the role of statine in peptide inhibitors. It shows conclusively that statine should be considered a dipeptide analogue (occupying P1 to P1') despite lacking the equivalent of a P1' side chain, although other inhibitor residues (especially P2) may compensate by interacting at the unoccupied S1' specificity subsite.


    Related Citations: 
    • The Active Site of Aspartic Proteinases
      Pearl, L.,Blundell, T.
      (1984) FEBS Lett. 174: 96
    • Active Site of Acid Proteinases
      Blundell, T.L.,Jones, H.B.,Khan, G.,Taylor, G.,Sewell, T.S.,Pearl, L.H.,Wood, S.P.
      (1979) Proc.FEBS Meet. 60: 281
    • X-Ray Analysis and Circular Dichroism of the Acid Protease from Endothia Parasitica and Chymosin
      Jenkins, J.,Tickle, I.,Sewell, T.,Ungaretti, L.,Wollmer, A.,Blundell, T.
      (1977) Adv.Exp.Med.Biol. 95: 43
    • Structural Evidence for Gene Duplication in the Evolution of Acid Proteases
      Tang, J.,James, M.N.G.,Hsu, I.N.,Jenkins, J.A.,Blundell, T.L.
      (1978) Nature 271: 618
    • Four-Fold Structural Repeat in the Acid Proteases
      Blundell, T.L.,Sewell, B.T.,Mclachlan, A.D.
      (1979) Biochim.Biophys.Acta 580: 24
    • Homology Among Acid Proteases. Comparison of Crystal Structures at 3 Angstroms Resolution of Acid Proteases from Rhizopus Chinensis and Endothia Parasitica
      Subramanian, E.,Swan, I.D.A.,Liu, M.,Davies, D.R.,Jenkins, J.A.,Tickle, I.J.,Blundell, T.L.
      (1977) Proc.Natl.Acad.Sci.USA 74: 556
    • The Three-Dimensional Structure of Acid Proteinases
      Blundell, T.L.,Jenkins, J.A.,Khan, G.,Roychowdhury, P.,Sewell, T.,Tickle, I.J.,Wood, E.A.
      (1979) Proc.FEBS Meet. 52: 81


    Organizational Affiliation

    Department of Crystallography, Birkbeck College, London, U.K.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ENDOTHIAPEPSIN
E
330Cryphonectria parasiticaMutation(s): 0 
Gene Names: EAPA (EPN-1)
EC: 3.4.23.22
Find proteins for P11838 (Cryphonectria parasitica)
Go to UniProtKB:  P11838
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
L363,564
I
8N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Biologically Interesting Molecules 1 Unique
IDChainsNameType/Class2D Diagram3D Interactions
PRD_000268
Query on PRD_000268
IL-364,099Peptide-like / Inhibitor

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Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Work: 0.170 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 53.500α = 90.00
b = 73.900β = 109.10
c = 45.600γ = 90.00
Software Package:
Software NamePurpose
PROLSQrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1991-01-15
    Type: Initial release
  • Version 1.1: 2008-03-03
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Atomic model, Database references, Derived calculations, Non-polymer description, Structure summary, Version format compliance
  • Version 1.3: 2012-12-12
    Type: Other
  • Version 1.4: 2017-11-29
    Type: Derived calculations, Other