Inhibition of HIV-1 Replication by Disruption of the Processing of the Viral Capsid-Spacer Peptide 1 Protein
申请人:Salzwedel Karl
公开号:US20100221264A1
公开(公告)日:2010-09-02
Inhibition of HIV-1 replication by disrupting the processing of the viral Gag capsid (CA) protein (p24) from the CA-spacer peptide 1 (SP1) protein precursor (p25) is disclosed. Amino acid sequences containing a mutation in the Gag p25 protein, with the mutation resulting in a decrease in the inhibition of processing of p25 to p24 by dimethylsuccinyl betulinic acid or dimethylsuccinyl betulin, polynucleotides encoding such mutated sequences and antibodies that selectively bind such mutated sequences are also included. Methods of inhibiting, inhibitory compounds and methods of discovering inhibitory compounds that target proteolytic processing of the HIV Gag protein are included. In one embodiment, such compounds inhibit the interaction of the HIV protease enzyme with Gag by binding to the Gag proteolytic cleavage site rather than to the protease enzyme. In another embodiment, viruses or recombinant proteins that contain mutations in the region of the Gag proteolytic cleavage site can be used in screening assays to identify compounds that target proteolytic processing.
本文揭示了通过破坏病毒Gag外壳(CA)蛋白(p24)从CA-间隔肽1(SP1)蛋白前体(p25)的处理来抑制HIV-1复制的方法。包括含有Gag p25蛋白中突变的氨基酸序列,该突变导致二甲基琥珀酰基莽草酸或二甲基琥珀酰基莽草酸抑制p25到p24处理的减少,编码这些突变序列的多核苷酸和选择性结合这些突变序列的抗体。还包括抑制HIV Gag蛋白的蛋白酶解处理的方法,抑制性化合物和发现靶向蛋白酶解处理的抑制性化合物的方法。在一种实施例中,这些化合物通过结合Gag蛋白酶解位点而不是蛋白酶来抑制HIV蛋白酶与Gag的相互作用。在另一种实施例中,包含Gag蛋白酶解位点区域突变的病毒或重组蛋白可用于筛选试验,以识别靶向蛋白酶解处理的化合物。