منابع مشابه
Resistance mechanism of human immunodeficiency virus type-1 protease to inhibitors: A molecular dynamic approach
Human immunodeficiency virus type 1 (HIV-1) protease inhibitors comprise an important class of drugs used in HIV treatments. However, mutations of protease genes accelerated by low fidelity of reverse transcriptase yield drug resistant mutants of reduced affinities for the inhibitors. This problem is considered to be a serious barrier against HIV treatment for the foreseeable future. In this st...
متن کاملBovine leukemia virus protease: comparison with human T-lymphotropic virus and human immunodeficiency virus proteases.
Bovine leukemia virus (BLV) is a valuable model system for understanding human T-lymphotropic virus 1 (HTLV-1); the availability of an infectious BLV clone, together with animal-model systems, will help to explore anti-HTLV-1 strategies. Nevertheless, the specificity and inhibitor sensitivity of the BLV protease (PR) have not been characterized in detail. To facilitate such studies, a molecular...
متن کاملFitness landscape of human immunodeficiency virus type 1 protease quasispecies.
Here we show, at a high resolution (1%), the human immunodeficiency virus type 1 (HIV-1) protease gene quasispecies landscape from three infected naïve individuals. A huge range of genetic configurations was found (67%, 71%, and 80% of the nucleotide clones from the three individuals, respectively, were different), and these configurations created a dense net that linked different parts of the ...
متن کاملActive human immunodeficiency virus protease is required for viral infectivity.
Retroviral proteins are synthesized as polyprotein precursors that undergo proteolytic cleavages to yield the mature viral proteins. The role of the human immunodeficiency virus (HIV) protease in the viral replication cycle was examined by use of a site-directed mutation in the protease gene. The HIV protease gene product was expressed in Escherichia coli and observed to cleave HIV gag p55 to g...
متن کاملHuman Immunodeficiency Virus Protease Cleaves Poly(a) Binding Protein
The poly(A)-binding protein (PABP) is able to interact with the 3’ poly(A) tail of eukaryotic mRNA, promoting its translation. Cleavage of PABP by viral proteases encoded by several picornaviruses and caliciviruses plays a part in the abrogation of cellular protein synthesis. We report that infection of MT-2 cells with HIV-1 leads to an efficient proteolysis of PABP. Analysis of PABP integrity ...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1989
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)94177-3