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网络首发:2012-11-20,
纸质出版:2012
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HIV-1辅助受体CCR5与其天然配体结合效果的综合评价[J]. 中山大学学报(医学科学版), 2012,33(6).
Inhibition Evaluation of Natural Inhibitors of CCR5 for HIV-1[J]. Journal of Sun Yat-sen University (Medical Sciences), 2012, 33(6).
HIV-1辅助受体CCR5与其天然配体结合效果的综合评价[J]. 中山大学学报(医学科学版), 2012,33(6). DOI:
Inhibition Evaluation of Natural Inhibitors of CCR5 for HIV-1[J]. Journal of Sun Yat-sen University (Medical Sciences), 2012, 33(6). DOI:
【目的】 探讨CCR5蛋白与天然配体的结合姿态位置,寻找CCR5的优化对接靶点及与天然配体结合的最优姿态,为HIV-1新型药物研发提供依据。【方法】 运用SWISS-MODEL构建天然配体的三维结构,运用Discovery studio软件ZDOCK模块模拟3种天然配体RANTES,MIP-1α和MIP-1β与CCR5对接,分析对接姿态,计算ZDOCK综合得分,评估结合效果优劣。【结果】 RANTES、MIP-1α和MIP-1β这3种天然配体主要是在N末端或第二个胞外环与CCR5蛋白结合。并且RANTES较MIP-1α和MIP-1β有更强的抑制作用。 【结论】 第二个胞外环可能是多肽抑制剂与CCR5结合的主要位点。对于RANTES的分子修饰是未来研发多肽类CCR5抑制剂的首选方向。
【Objective】To seek the optimal inhibitor and the best poses of CCR5 by comparing the inhibitions of natural inhibitors. To provide a basis for new drug development of anti-HIV-1.【Methods】The three-dimensional patterns of three peptides, RANTES, MIP-1α and MIP-1β, were synthesized by the software SWISS-MODEL, the docking results that each inhibitor docks with CCR5 protein had been obtained using Discovery Studio ZDOCK software. The Inhibition had been evaluated by ZDOCK score.【Results】 The optimal sites of these three peptide inhibitors docking with CCR5 were the N-terminal and the second outer ring of the cell. The Inhibition of RANTES is stronger than that of MIP-1α and MIP-1β. 【Conclusion】 The second outer ring of the cell may be the most active site of docking. And modification of RANTES is a preferred direction of future R & D peptide CCR5 inhibitors.
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