A small deletion in the carboxy terminus of the viral myc gene renders the virus MC29 partially transformation defective in avian fibroblasts.
A small deletion in the carboxy terminus of the viral myc gene renders the virus MC29 partially transformation defective in avian fibroblasts.
复制标题
病毒myc基因羧基末端的一个小缺失使得病毒MC29在禽类成纤维细胞中部分转化缺陷。
DOI:
10.1016/0042-6822(89)90265-1
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发表时间:
1989
期刊:
影响因子:
3.7
通讯作者:
Enrietto,PJ
中科院分区:
文献类型:
--
作者:
Enrietto,PJ
In order to characterize the role of the carboxy terminus of the viralmycprotein in the transformation of avian fibroblasts and macrophages, severalBal31 deletion mutants were created which removed varying portions of the carboxy terminus of themycprotein. Only one such mutant, S90.9, which had lost nine amino acids ofmycretained biological activity when tested in macrophages and fibroblasts. This mutant transformed avian macrophages in a manner similar to that of wild-type, but appeared to be partially transformation defective in fibroblasts. Chicken embryo fibroblast cultures infected with S90.9 exhibited an intermediate phenotype morphologically when compared to wild-type-infected cells. When tested for growth in soft agar, the presence or absence of actin cables and fibronectin on the cell surface, and growth rate, S90.9-infected cells showed intermediate behavior when compared to wild-type or helper virus-infected fibroblasts. These experiments suggest that the carboxy terminus of themycprotein, which is highly basic in nature, is involved in the transformation of avian fibroblasts.
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