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
- PubMed: 2690945
- Primary Citation of Related Structures:
- PubMed Abstract:
- 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
- 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
- The Active Site of Aspartic Proteinases
Pearl, L.,Blundell, T.
(1984) FEBS Lett. 174: 96
- 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
- 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
- Four-Fold Structural Repeat in the Acid Proteases
Blundell, T.L.,Sewell, B.T.,Mclachlan, A.D.
(1979) Biochim.Biophys.Acta 580: 24
The conformation of a statine-containing renin inhibitor complexed with the aspartic proteinase from the fungus Endothia parasitica (EC 220.127.116.11) 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 18.104.22.168) 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.
Department of Crystallography, Birkbeck College, London, U.K.