Identification of amino acid residues required for Ras p21 target activation
Identification of amino acid residues required for Ras p21 target activation
复制标题
鉴定 Ras p21 靶点激活所需的氨基酸残基
DOI:
--
复制
发表时间:
1991
影响因子:
5.3
通讯作者:
Jackson B. Gibbs
中科院分区:
文献类型:
--
作者:
Mark S. Marshall;Lenora Davis;S. Mosser;W. Hill;E. Scolnick;Jackson B. Gibbs
The Krev-1 gene has been shown to suppress ras-mediated transformation in vitro. Both ras and Krev-1 proteins have identical effector domains (ras residues 32 to 40), which are required for biological activity and for the interaction of Ras p21 with Ras GTPase-activating protein (GAP). In this study, five amino acid residues flanking the ras effector domain, which are not conserved with the Krev-1 protein, were shown to be required for normal protein-protein interactions and biological activity. The substitution of Krev-1 p21 residues 26, 27, 30, 31, and 45 with the corresponding amino acid residues from Ras p21 resulted in a Krev-1 protein which had ras function in both mammalian and yeast biological assays. Replacement of these residues in Ras p21 with the corresponding Krev-1 p21 amino acids resulted in ras proteins which were impaired biologically or reduced in their affinity for in vitro GAP binding. Evaluation of these mutant ras proteins have implications for Ras p21-GAP interactions in vivo.
影响因子:
16.6
作者:
M. Barbacid
通讯作者:
M. Barbacid
影响因子:
3.3
作者:
Cannon,JF;Gibbs,JB;Tatchell,K
通讯作者:
Tatchell,K
影响因子:
56.9
作者:
DEVOS, AM;TONG, L;KIM, SH
通讯作者:
KIM, SH