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Epstein-Barr virus immediate-early proteins BZLF1 and BRLF1 activate the ATF2 transcription factor by increasing the levels of phosphorylated p38 and c-Jun N-terminal kinases 总被引:5,自引:0,他引:5 下载免费PDF全文
Adamson AL Darr D Holley-Guthrie E Johnson RA Mauser A Swenson J Kenney S 《Journal of virology》2000,74(3):1224-1233
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The Epstein-Barr virus (EBV) BMRF1 protein is a DNA polymerase processivity factor. We have deleted the BMRF1 open reading frame from the EBV genome and assessed the DeltaBMRF1 EBV phenotype. DeltaBMRF1 viruses were replication deficient, but the wild-type phenotype could be restored by BMRF1 trans-complementation. The replication-deficient phenotype included impaired lytic DNA replication and late protein expression. DeltaBMRF1 and wild-type viruses were undistinguishable in terms of their ability to transform primary B cells. Our results provide genetic evidence that BMRF1 is essential for lytic replication of the EBV genome. 相似文献