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Volumn 20, Issue 14, 2010, Pages 4060-4064

Diazinones as P2 replacements for pyrazole-based cathepsin S inhibitors

Author keywords

Cathepsin; Fragment based screening; Protease; Tethering; X ray crystallography

Indexed keywords

CATHEPSIN S INHIBITOR; DIAZINONE DERIVATIVE; PYRAZOLE; PYRIDAZINONE DERIVATIVE; UNCLASSIFIED DRUG;

EID: 77953872634     PISSN: 0960894X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.bmcl.2010.05.086     Document Type: Article
Times cited : (19)

References (31)
  • 13
    • 77953872717 scopus 로고    scopus 로고
    • Allen, D.; Ameriks, M. K.; Axe, F. U.; Burdett, M.; Cai, H.; Choong, I.; Edwards, James P.; Lew, W.; Meduna, S. P. PCT Int. Appl. WO2008100635A1, 2008.
    • Allen, D.; Ameriks, M. K.; Axe, F. U.; Burdett, M.; Cai, H.; Choong, I.; Edwards, James P.; Lew, W.; Meduna, S. P. PCT Int. Appl. WO2008100635A1, 2008.
  • 14
    • 77953872343 scopus 로고    scopus 로고
    • Allen, D.; Ameriks, M. K.; Axe, F. U.; Burdett, M.; Cai, H.; Choong, I.; Edwards, J. P.; Lew, W.; Meduna, S. P. PCT Int. Appl. WO2008100620A2, 2008.
    • Allen, D.; Ameriks, M. K.; Axe, F. U.; Burdett, M.; Cai, H.; Choong, I.; Edwards, J. P.; Lew, W.; Meduna, S. P. PCT Int. Appl. WO2008100620A2, 2008.
  • 15
    • 46849089254 scopus 로고    scopus 로고
    • For recent reviews on fragment-based drug discovery, see:
    • For recent reviews on fragment-based drug discovery, see:. Congreve M., Chessari G., Tisi D., and Woodhead A.J. J. Med. Chem. 51 (2008) 3661
    • (2008) J. Med. Chem. , vol.51 , pp. 3661
    • Congreve, M.1    Chessari, G.2    Tisi, D.3    Woodhead, A.J.4
  • 16
    • 84991718926 scopus 로고    scopus 로고
    • Jahnke, W., Erlanson, D. A., Eds. Fragment-Based Approaches in Drug Discovery. In Methods and Principles in Medicinal Chemistry, Mannhold, R., Kubinyi, H., Folkers, G., Eds.; 2006; 34, Wiley-VCH: Weinheim, Germany.
    • Jahnke, W., Erlanson, D. A., Eds. Fragment-Based Approaches in Drug Discovery. In Methods and Principles in Medicinal Chemistry, Mannhold, R., Kubinyi, H., Folkers, G., Eds.; 2006; Vol. 34, Wiley-VCH: Weinheim, Germany.
  • 18
    • 12344326695 scopus 로고    scopus 로고
    • The term Tethering is a service mark of Sunesis Pharmaceuticals Inc. for its fragment-based drug discovery:
    • The term Tethering is a service mark of Sunesis Pharmaceuticals Inc. for its fragment-based drug discovery:. Oslob J.D., and Erlanson D.A. Drug Discovery Today 3 (2004) 143
    • (2004) Drug Discovery Today , vol.3 , pp. 143
    • Oslob, J.D.1    Erlanson, D.A.2
  • 21
    • 77953871674 scopus 로고    scopus 로고
    • note
    • CatS cysteine mutants were expressed in SF9 cells as histidine-tagged proteins. Following purification over a Ni-NTA column, the CatS mutants were processed by 0.4 mg/mL pepsin, 100 mM NaOAc, pH 4.5, 5 mM DTT, 2.5 mM EDTA for 2 h at 40 °C. Pepsin enzymatic activity was stopped by raising the pH of the digestion to 7.5. Further purification was not required for screening, since the molecular weight of pepsin is larger than CatS and does not interfere with deconvolution of the fragment hits.
  • 22
    • 77953872504 scopus 로고    scopus 로고
    • note
    • Monophore screening conditions: 10-15 μM CatS mutant, 1 mM β-mercaptoethanol, 50 μM monophore (500 μM total in pools of 10), 50 mM Tris, pH 7.5. Monophore hits were identified by visual inspection of the deconvoluted masses of the monophore-protein conjugates and then ranked by fractional conjugation (the fraction of protein that remains conjugated to the discrete monophores in the presence of increasing concentrations of β-mercaptoethanol).
  • 23
    • 77953871882 scopus 로고    scopus 로고
    • For a detailed description of the enzymatic assay, see: Allen, D.; Choong, I.; Lew, W. PCT Int. Appl. WO2008100622A2, 2008.
    • For a detailed description of the enzymatic assay, see: Allen, D.; Choong, I.; Lew, W. PCT Int. Appl. WO2008100622A2, 2008.
  • 24
    • 77953872048 scopus 로고    scopus 로고
    • note
    • The monophore corresponding to adduct 3 was non-covalently docked to the structure of CatS in the area surrounding the E115C residue. Only binding conformations that placed the sulfur of the linker within 5 Å of the cysteine residue were retained. The monophores were then covalently attached as disulfides to the cysteine mutant and minimization was attempted to match each conformation from the non-covalent docking. The conformations were then scored and the lowest energy conformation for adduct 3 is shown in Figure 2.
  • 31
    • 77953872388 scopus 로고    scopus 로고
    • note
    • -6 cm/s): compound 22, A-B = 1.3/B-A = 1.5; compound 27, A-B = 2.5/B-A = 2.9; compound 32, A-B = 0.6/B-A = 3.7.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.