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Volumn 15, Issue 12, 2005, Pages 3086-3090

Beta-lactam compounds as apparently uncompetitive inhibitors of HIV-1 protease

Author keywords

Beta lactam library; Enzyme kinetics; HIV protease; Inhibition

Indexed keywords

ANTIVIRUS AGENT; BETA LACTAM DERIVATIVE; PROTEINASE INHIBITOR; VIRUS ENZYME;

EID: 19944402503     PISSN: 0960894X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.bmcl.2005.04.020     Document Type: Article
Times cited : (164)

References (22)
  • 3
    • 0038606190 scopus 로고    scopus 로고
    • A. Wlodawer Vox Sang. 83 Suppl. 1 2002 23
    • (2002) Vox Sang. , vol.83 , Issue.1 SUPPL. , pp. 23
    • Wlodawer, A.1
  • 8
    • 0031172122 scopus 로고    scopus 로고
    • J. Stebbins, and C. Debouck Anal. Biochem. 248 1997 246 Briefly, 10 μl substrate solution (0.7 mM Acetyl-RKIL↓FLDG), where the arrow indicates the site of cleavage, 16 μl buffer (50 mM Na-acetate, pH 5.5 containing 0.1 M NaCl), 4 μl 10 mg/ml inhibitor in DMSO or DMSO alone and 10 μl HIV-1 protease (0.5 μM) was incubated in dark for overnight in duplicate. The final color reaction was developed using a desk lamp (24 min exposure) and the absorbance was detected at 450 nm. The enzyme concentration was selected to cause a 50% cleavage of the substrate in the absence of inhibitor, verified by HPLC analysis
    • (1997) Anal. Biochem. , vol.248 , pp. 246
    • Stebbins, J.1    Debouck, C.2
  • 10
    • 0025980395 scopus 로고
    • m + [S]). To determine the type of inhibition, kinetic measurements were also performed by varying the substrate concentration in the presence of a fixed inhibitor concentration, and double-reciprocal plots were utilized, as exemplified in Figure 3
    • (1991) FEBS Lett. , vol.281 , pp. 77
    • Tözsér, J.1    Blaha, I.2    Copeland, T.D.3    Wondrak, E.M.4    Oroszlan, S.5
  • 12
    • 19944406496 scopus 로고    scopus 로고
    • note
    • Initial model of an extended conformation of the β-lactam compound (I/13a) was manually built from atoms using the Sketch module of Sybyl (Tripos Inc., St. Louis, MO, USA) on a SGI Fuel workstation (Silicon Graphics Inc., Mountain View, CA, USA). It was minimized by the Maximin module of Sybyl using Tripos force field. The molecule was docked manually onto the flap region of a high resolution HIV-1 PR structures (PDB code: 1K1T). The complex was minimized by the Maximin module of Sybyl using Tripos force field and partial charges of Gasteiger-Marsili method implemented in Sybyl. Five hundreds Powell iterations were applied and only the β-lactam compound was allowed to move. Next, the complex was gradually heated up to 300 K by short molecular dynamics runs and finally a 100 ps molecular dynamics was applied, where only the β-lactam compound was allowed to move
  • 17
    • 19944405491 scopus 로고    scopus 로고
    • unpublished results
    • Fehér, A. et al., unpublished results
    • Fehér, A.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.