Maturation of murine leukemia virus env proteins in the absence of other viral proteins.
Maturation of murine leukemia virus env proteins in the absence of other viral proteins.
复制标题
在没有其他病毒蛋白的情况下,鼠白血病病毒 env 蛋白的成熟。
DOI:
10.1016/0042-6822(85)90168-0
复制
发表时间:
1985
期刊:
影响因子:
3.7
通讯作者:
Rein,A
中科院分区:
文献类型:
--
作者:
Schultz,A;Rein,A
A mutant of Akv which producesenvbut no detectable gag or pol products (A. Rein, D. R. Lowy, B. I. Gerwin, S. K. Ruscetti, and R. H. Bassin,J. Virol.41, 626–634 (1982)) was examined for maturation ofenvgene protein products. In comparison with wild-type Akv, the mutant AK 71 synthesizes gPr85eenvand produces gp70 and Prp15E in normal amounts and with normal kinetics. Cell surface gp70 was found alike in the mutant and wild type. However, cleavage of Pr15E to p15E did not occur in the mutant. This final cleavage step of AK 71 Prp15E could be made to occur by superinfecting cells containing the mutant with baboon endogenous virus. Thus, unlike earlier steps, this final step in maturation of theenvgene product appears to requiregagorpolgene products. It is proposed that the virus-encoded protease is required for this last step.