- PDB-9mxb: Crystal Structure of WT HIV-1 Reverse Transcriptase in Complex wi... -
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基本情報
登録情報
データベース: PDB / ID: 9mxb
タイトル
Crystal Structure of WT HIV-1 Reverse Transcriptase in Complex with 5-{2-[2-(2-oxo-4-sulfanylidene-3,4-dihydropyrimidin-1(2H)-yl)ethoxy] phenoxy}naphthalene-2-carbonitrile (JLJ648), a non-nucleoside inhibitor
要素
Reverse transcriptase/ribonuclease H
p51 RT
キーワード
VIRAL PROTEIN / REVERSE TRANSCRIPTASE / ANTIVIRAL / DRUG DESIGN / HIV-1
機能・相同性
機能・相同性情報
HIV-1 retropepsin / symbiont-mediated activation of host apoptosis / retroviral ribonuclease H / exoribonuclease H / exoribonuclease H activity / host multivesicular body / DNA integration / viral genome integration into host DNA / RNA-directed DNA polymerase / establishment of integrated proviral latency ...HIV-1 retropepsin / symbiont-mediated activation of host apoptosis / retroviral ribonuclease H / exoribonuclease H / exoribonuclease H activity / host multivesicular body / DNA integration / viral genome integration into host DNA / RNA-directed DNA polymerase / establishment of integrated proviral latency / viral penetration into host nucleus / RNA stem-loop binding / RNA-directed DNA polymerase activity / RNA-DNA hybrid ribonuclease activity / 転移酵素; リンを含む基を移すもの; 核酸を移すもの / host cell / viral nucleocapsid / DNA recombination / DNA-directed DNA polymerase / aspartic-type endopeptidase activity / 加水分解酵素; エステル加水分解酵素 / DNA-directed DNA polymerase activity / symbiont-mediated suppression of host gene expression / viral translational frameshifting / lipid binding / symbiont entry into host cell / host cell nucleus / host cell plasma membrane / virion membrane / structural molecule activity / proteolysis / DNA binding / zinc ion binding / membrane 類似検索 - 分子機能
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
NIH/NAD AI155072
米国
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)
AI186613
米国
引用
ジャーナル: NPJ Drug Discov / 年: 2025 タイトル: Mechanistic basis for a novel dual-function Gag-Pol dimerizer potentiating CARD8 inflammasome activation and clearance of HIV-infected cells. 著者: Klarissa Hollander / Swapnil C Devarkar / Su Tang / Ritudhwaj Tiwari / Shumeng Ma / Won Gil Lee / Elizabeth Denn / Qiankun Wang / Krasimir A Spasov / Jake A Robbins / Kathleen M Frey / ...著者: Klarissa Hollander / Swapnil C Devarkar / Su Tang / Ritudhwaj Tiwari / Shumeng Ma / Won Gil Lee / Elizabeth Denn / Qiankun Wang / Krasimir A Spasov / Jake A Robbins / Kathleen M Frey / William L Jorgensen / Yong Xiong / Liang Shan / Karen S Anderson / 要旨: A strategy to functionally cure AIDS by eliminating latent HIV-1 reservoirs involves non-nucleoside reverse transcriptase inhibitors (NNRTIs) that promote pyroptosis of HIV-1 infected cells. These ...A strategy to functionally cure AIDS by eliminating latent HIV-1 reservoirs involves non-nucleoside reverse transcriptase inhibitors (NNRTIs) that promote pyroptosis of HIV-1 infected cells. These NNRTIs stimulate dimerization of the Gag-Pol polyprotein, resulting in premature HIV-1 protease (PR) dimerization and cleavage of intracellular CARD8. A unique cell-based high-throughput screen was developed to identify potent compounds activating the CARD8 inflammasome through Gag-Pol dimerization. Our in-house library of NNRTIs was evaluated, including a series of catechol diethers, which are potent, nontoxic antivirals. JLJ648 was identified as a promising dual-function antiviral and Gag-Pol dimerizer. Cryo-EM studies of HIV reverse transcriptase p66 bound to JLJ648 revealed populations of homodimers and, surprisingly, a homotetramer. This novel homotetramer structure resembling an 'infinity knot' revealed two JLJ648-bound homodimers forming an extensive interface and nucleated around a dimer of JLJ648 molecules. Structure-guided mutagenesis studies indicate that Gag-Pol homotetramerization may play a critical role in facilitating PR self-cleavage and triggering pyroptosis.