2GV7
Structure of Matriptase in Complex with Inhibitor CJ-672
Summary for 2GV7
| Entry DOI | 10.2210/pdb2gv7/pdb |
| Related | 2GV6 |
| Descriptor | Suppressor of tumorigenicity 14, (S)-4-(4-(3-(3-CARBAMIMIDOYLPHENYL)-2-(2,4,6-TRIISOPROPYLPHENYLSULFONAMIDO)PROPANOYL)PIPERAZINE-1-CARBONYL)PIPERIDINE-1-CARBOXIMIDAMIDE (3 entities in total) |
| Functional Keywords | matriptase, inhibitor, complex structure, hydrolase |
| Biological source | Homo sapiens (human) |
| Cellular location | Membrane; Single-pass type II membrane protein (Probable): Q9Y5Y6 |
| Total number of polymer chains | 1 |
| Total formula weight | 27158.69 |
| Authors | Bode, W. (deposition date: 2006-05-02, release date: 2006-06-06, Last modification date: 2024-10-30) |
| Primary citation | Steinmetzer, T.,Schweinitz, A.,Sturzebecher, A.,Donnecke, D.,Uhland, K.,Schuster, O.,Steinmetzer, P.,Muller, F.,Friedrich, R.,Than, M.E.,Bode, W.,Sturzebecher, J. Secondary Amides of Sulfonylated 3-Amidinophenylalanine. New Potent and Selective Inhibitors of Matriptase. J.Med.Chem., 49:4116-4126, 2006 Cited by PubMed Abstract: Matriptase is an epithelium-derived type II transmembrane serine protease and has been implicated in the activation of substrates such as pro-HGF/SF and pro-uPA, which are likely involved in tumor progression and metastasis. Through screening, we have identified bis-basic secondary amides of sulfonylated 3-amidinophenylalanine as matriptase inhibitors. X-ray analyses of analogues 8 and 31 in complex with matriptase revealed that these inhibitors occupy, in addition to part of the previously described S4-binding site, the cleft formed by the molecular surface and the unique 60 loop of matriptase. Therefore, optimization of the inhibitors included the incorporation of appropriate sulfonyl substituents that could improve binding of these inhibitors into both characteristic matriptase subsites. The most potent derivatives inhibit matriptase highly selective with K(i) values below 5 nM. Molecular modeling revealed that their improved affinity results from interaction with the S4 site of matriptase. Analogues 8 and 59 were studied in an orthotopic xenograft mouse model of prostate cancer. Compared to control, both inhibitors reduced tumor growth, as well as tumor dissemination. PubMed: 16821772DOI: 10.1021/jm051272l PDB entries with the same primary citation |
| Experimental method | X-RAY DIFFRACTION (2.2 Å) |
Structure validation
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