期刊
JOURNAL OF VIROLOGY
卷 79, 期 13, 页码 8669-8674出版社
AMER SOC MICROBIOLOGY
DOI: 10.1128/JVI.79.13.8669-8674.2005
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资金
- Medical Research Council [G117/457, G9826944] Funding Source: Medline
- Medical Research Council [G117/457, G9826944] Funding Source: researchfish
- MRC [G9826944, G117/457] Funding Source: UKRI
Influenza virus RNA-dependent RNA polymerase is a heterotrimeric complex of PB1, PB2, and PA. We show that the individually expressed PB2 subunit can be assembled with the coexpressed PB1-PA dimer in vitro into a transcriptionally active complex. Furthermore, we demonstrate that a model viral RNA promoter can bind to the PB1-PA dimer prior to assembly with PB2. Our results are consistent with a recently proposed model for the sequential assembly of viral RNA polymerase complex in which the PB1-PA dimeric complex and the PB2 monomer are transported into the nucleus separately and then assembled in the nucleus.
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