Identification of a minimal HIV-1 gag domain sufficient for self-association.
Identification of a minimal HIV-1 gag domain sufficient for self-association.
复制标题
鉴定出足以自关联的最小 HIV-1 gag 结构域。
DOI：
10.1006/viro.2001.1315
复制
发表时间：
2002
期刊：
影响因子：
3.7
通讯作者：
Sakalian,Michael
中科院分区：
文献类型：
--
作者：
Zábranský,Ales;Hunter,Eric;Sakalian,Michael
Gag polyprotein precursors play an essential role in the assembly of the HIV particle by polymerizing into a spherical shell at the plasma membrane. In order to define the domains within Gag responsible for this homotypic interaction, we have coupled the technology of the yeast two-hybrid system with the technology of a gene-based, semirandom library. By this method, we have identified a minimal region of Gag capable of efficient self-interaction. This region consists of the N-terminal portion of the nucleocapsid protein (NC), including the first zinc finger and the previously described interaction, or I, domain. In parallel with this randomized approach, individual HIV Gag domains, and combinations of these domains, were tested for potential homotypic and heterotypic interactions in the yeast two-hybrid system. Consistent with the results from the semirandom library screen, only combinations of species containing NC were strongly interacting.
