Activation of Oas1a gene expression by type I IFN requires both STAT1 and STAT2 while only STAT2 is required for Oas1b activation.
Activation of Oas1a gene expression by type I IFN requires both STAT1 and STAT2 while only STAT2 is required for Oas1b activation.
复制标题
DOI:
10.1016/j.virol.2011.11.025
复制
发表时间:
2012-04-10
期刊:
影响因子:
3.7
通讯作者:
Brinton MA
中科院分区:
文献类型:
--
作者:
Pulit-Penaloza JA;Scherbik SV;Brinton MA
The murine 2′-5′ oligoadenylate synthetase 1a (Oas1a) and Oas1b genes are type 1 IFN responsive genes. Oas1a is an active synthetase with broad antiviral activity mediated through RNase L. Oas1b is inactive but can inhibit Oas1a synthetase activity and mediate a flavivirus-specific antiviral activity through an unknown RNase L-independent mechanism. Analysis of promoter elements regulating gene transcription confirmed that an IFN-stimulated response element (ISRE) is required for IFN beta-activation but neither the overlapping IRF binding site present in both promoters nor the adjacent Oas1b NF-kappa B site is required. Mutation of the overlapping STAT site negatively affected IFN beta-induction of Oas1a but not of Oas1b. Also, IFN beta induction of Oas1a was STAT1- and STAT2-dependent, while induction of Oas1b was STAT1-independent but STAT2-dependent. The two promoters differ at a single nucleotide in the STAT site. The data indicate that these two duplicated genes can be differentially regulated by IFN beta.
登录
查看更多内容
影响因子:
5
作者:
Andersen, J.;VanScoy, S.;Reich, N. C.
通讯作者:
Reich, N. C.
影响因子:
9.8
作者:
Bonnevie-Nielsen, V;Field, LL;Pociot, F
通讯作者:
Pociot, F
影响因子:
56.9
作者:
Darnell, JE
通讯作者:
Darnell, JE
影响因子:
5.8
作者:
Chang, TH;Liao, CL;Lin, YL
通讯作者:
Lin, YL
DOI:
10.1073/pnas.92.12.5645
发表时间:
1995-06-06
影响因子:
11.1
作者:
BLUYSSEN, HAR;MUZAFFAR, R;LEVY, DE
通讯作者:
LEVY, DE