메뉴 건너뛰기




Volumn 17, Issue 17, 2007, Pages 4761-4766

Identification and characterization of 3-substituted pyrazolyl esters as alternate substrates for cathepsin B: The confounding effects of DTT and cysteine in biological assays

Author keywords

Alternate substrate; Cathepsin B; Cysteine; DTT; HTS; MLSMR; Pyrazole esters

Indexed keywords

CATHEPSIN B; CYSTEINE; DITHIOTHREITOL; ESTER DERIVATIVE; PYRAZOLE; PYRAZOLYL ESTER; UNCLASSIFIED DRUG;

EID: 34547506020     PISSN: 0960894X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.bmcl.2007.06.091     Document Type: Article
Times cited : (21)

References (34)
  • 9
    • 34547494218 scopus 로고    scopus 로고
    • note
    • Penn Center for Molecular Discovery: http://www.seas.upenn.edu/~pcmd/ Molecular Library Screening Center Network: http://nihroadmap.nih.gov/molecularlibraries/.
  • 10
    • 34547522991 scopus 로고    scopus 로고
    • PubChem: http://pubchem.ncbi.nlm.nih.gov/.
  • 11
    • 34547521247 scopus 로고    scopus 로고
    • PubChem web address for PCMD cathepsin B hits: http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=pcassay&term=488,453,523.
  • 13
    • 34547542748 scopus 로고    scopus 로고
    • note
    • 50 values for each compound. Cathepsin B (Calbiochem 219362) was activated by incubating with assay buffer for 15 min. Assay buffer consisted of 100 mM sodium-potassium phosphate, pH 6.8 (86 mM potassium phosphate, monobasic; 7 mm sodium phosphate, monobasic; 7 mM sodium phosphate, tribasic), 1 mM EDTA, and 2 mM DTT. Upon activation, cathepsin B was incubated with Z-Arg-Arg-AMC substrate (15 μM) and test compound in 10 μL of assay buffer for 1 h at room temperature. Fluorescence of AMC released by enzyme-catalyzed hydrolysis of Z-Arg-Arg-AMC was read on a Perkin-Elmer Envision microplate reader (excitation 355 nm, emission 460 nm).
  • 14
    • 34547547339 scopus 로고    scopus 로고
    • note
    • +: 350.0269].
  • 15
    • 34547524622 scopus 로고    scopus 로고
    • note
    • A single crystal X-ray structure of pyrazole ester 2 was also obtained to verify its structure.
  • 18
    • 0023801314 scopus 로고
    • For the cyclization of hydrazide-substituted ureas using this protocol, see:
    • For the cyclization of hydrazide-substituted ureas using this protocol, see:. Drummond J.T., and Johnson G. J. Heterocycl. Chem. 25 (1988) 1123
    • (1988) J. Heterocycl. Chem. , vol.25 , pp. 1123
    • Drummond, J.T.1    Johnson, G.2
  • 20
    • 34547535961 scopus 로고    scopus 로고
    • PC Spartan is available from Wavefunction, Inc., 18401 Von Karman Avenue, Suite 370 Irvine, CA 92612.
  • 24
    • 34547549493 scopus 로고    scopus 로고
    • note
    • 50, a concentration at which most of the enzymatic activity should be regained if the compound is rapidly reversible.
  • 25
    • 34547512102 scopus 로고    scopus 로고
    • note
    • Pyrazolones 12, 14, and 15 were found to be inactive in the cathepsin B assay.
  • 30
    • 34547510192 scopus 로고    scopus 로고
    • 2 in Bacterial Bioluminescence Reaction with Flavinmononucleotide Activated with N-methylimidazole on the Phosphate Group without Addition of the Exogenous Aldehyde. In Bioluminescence & Chemiluminescence: Progress and Perspectives, Proceedings of the International Symposium on Bioluminescence & Chemiluminescence, Yokohama, Japan, Aug 2-6, 2004; Tsuji, A., Ed.; World Scientific Publishing Co. Pte. Ltd: Singapore, 2005; CAN 144:65940, 91.
  • 31
    • 0344887064 scopus 로고
    • a of pyridine in water (5.2), see:
    • a of pyridine in water (5.2), see:. Bordwell F.G. Acc. Chem. Res. 21 (1988) 456
    • (1988) Acc. Chem. Res. , vol.21 , pp. 456
    • Bordwell, F.G.1
  • 32
    • 0020198689 scopus 로고
    • For an insightful review on mechanistic studies of cysteine proteases, see:
    • For an insightful review on mechanistic studies of cysteine proteases, see:. Polgár L., and Halász P. Biochem. J. 207 (1982) 1
    • (1982) Biochem. J. , vol.207 , pp. 1
    • Polgár, L.1    Halász, P.2
  • 34
    • 0021099099 scopus 로고
    • For an example of an ester substrate (N-benzyloxycarbonyl-l-lysine p-nitrophenyl ester) of cathepsin B, see:
    • For an example of an ester substrate (N-benzyloxycarbonyl-l-lysine p-nitrophenyl ester) of cathepsin B, see:. Bajkowski A.S., and Frankfater A. J. Biol. Chem. 258 (1983) 1645
    • (1983) J. Biol. Chem. , vol.258 , pp. 1645
    • Bajkowski, A.S.1    Frankfater, A.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.