Cellular and molecular mechanisms of HIV-1 integration targeting.
Cellular and molecular mechanisms of HIV-1 integration targeting.
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DOI:
10.1007/s00018-018-2772-5
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发表时间:
2018-07
期刊:
影响因子:
--
通讯作者:
Singh PK
中科院分区:
文献类型:
--
作者:
Engelman AN;Singh PK
Integration is central to HIV-1 replication and helps mold the reservoir of cells that persists in AIDS patients. HIV-1 interacts with specific cellular factors to target integration to interior regions of transcriptionally active genes within gene dense regions of chromatin. The viral capsid interacts with several proteins that are additionally implicated in virus nuclear import, including cleavage and polyadenylation specificity factor 6, to suppress integration into heterochromatin. The viral integrase protein interacts with transcriptional co-activator lens epithelium-derived growth factor p75 to principally position integration within gene bodies. The integrase additionally senses target DNA distortion and nucleotide sequence to help fine tune the specific phosphodiester bonds that are cleaved at integration sites. Research into virus-host interactions that underlie HIV-1 integration targeting has aided the development of a novel class of integrase inhibitors and may help to improve the safety of viral-based gene therapy vectors.
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