The interferon stimulated gene-encoded protein HELZ2 inhibits human LINE-1 retrotransposition and LINE-1 RNA-mediated type I interferon induction.
The interferon stimulated gene-encoded protein HELZ2 inhibits human LINE-1 retrotransposition and LINE-1 RNA-mediated type I interferon induction.
复制标题
DOI:
10.1038/s41467-022-35757-6
复制
发表时间:
2023-01-13
影响因子:
16.6
通讯作者:
Miyoshi, Tomoichiro
中科院分区:
文献类型:
--
作者:
Luqman-Fatah, Ahmad;Watanabe, Yuzo;Uno, Kazuko;Ishikawa, Fuyuki;Moran, John V.;Miyoshi, Tomoichiro
Some interferon stimulated genes (ISGs) encode proteins that inhibit LINE-1 (L1) retrotransposition. Here, we use immunoprecipitation followed by liquid chromatography-tandem mass spectrometry to identify proteins that associate with the L1 ORF1-encoded protein (ORF1p) in ribonucleoprotein particles. Three ISG proteins that interact with ORF1p inhibit retrotransposition: HECT and RLD domain containing E3 ubiquitin-protein ligase 5 (HERC5); 2′−5′-oligoadenylate synthetase-like (OASL); and helicase with zinc finger 2 (HELZ2). HERC5 destabilizes ORF1p, but does not affect its cellular localization. OASL impairs ORF1p cytoplasmic foci formation. HELZ2 recognizes sequences and/or structures within the L1 5′UTR to reduce L1 RNA, ORF1p, and ORF1p cytoplasmic foci levels. Overexpression of WT or reverse transcriptase-deficient L1s lead to a modest induction of IFN-α expression, which is abrogated upon HELZ2 overexpression. Notably, IFN-α expression is enhanced upon overexpression of an ORF1p RNA binding mutant, suggesting ORF1p binding might protect L1 RNA from “triggering” IFN-α induction. Thus, ISG proteins can inhibit retrotransposition by different mechanisms. Proteomic analyses revealed that a group of interferon-stimulated genes suppresses LINE-1 retrotransposon activities, including HELZ2, which reduces LINE-1 RNA and the associated innate immune response levels.
登录
查看更多内容
DOI:
10.1146/annurev-genom-082509-141802
发表时间:
2011
影响因子:
8.7
作者:
Beck CR;Garcia-Perez JL;Badge RM;Moran JV
通讯作者:
Moran JV
影响因子:
7
作者:
Chuang NT;Gardner EJ;Terry DM;Crabtree J;Mahurkar AA;Rivell GL;Hong CC;Perry JA;Devine SE
通讯作者:
Devine SE
影响因子:
3.3
作者:
Arjan-Odedra S;Swanson CM;Sherer NM;Wolinsky SM;Malim MH
通讯作者:
Malim MH
DOI:
10.1073/pnas.0831042100
发表时间:
2003-04-29
影响因子:
11.1
作者:
Brouha, B;Schustak, J;Kazazian, HH
通讯作者:
Kazazian, HH
影响因子:
3.2
作者:
Awano, Naoki;Rajagopal, Vaishnavi;Phadtare, Sangita
通讯作者:
Phadtare, Sangita