Roles of prenyl protein proteases in maturation of Saccharomyces cerevisiae a-factor.

Roles of prenyl protein proteases in maturation of Saccharomyces cerevisiae a-factor.
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异戊二烯蛋白蛋白酶在酿酒酵母 a 因子成熟中的作用。

DOI:
10.1093/genetics/150.1.95
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发表时间:
1998
期刊:
影响因子:
3.3
通讯作者:
Rine,J
Rine,J
中科院分区:
生物学2区
文献类型:
--
作者:
Boyartchuk,VL;Rine,J

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在真核生物中,小的分泌肽通常从较大的前体蛋白水解切割。在酿酒酵母中,从其36个氨基酸的前体生产成熟的12-氨基-酸-因子需要多个蛋白水解加工步骤。这项研究提供了额外的遗传数据支持的直接作用Afc 1 p在切割的羧基末端三肽从的prenylateda因子前体的CAAX基序。此外,Afc 1 p在α-因子加工中有第二个作用,该作用独立于其在体内羧基末端加工中的作用。使用泛素-α-因子融合,我们证实了α-因子前体的前区不是产生成熟信息素所必需的。而a-要素前体的亲区域对a-要素生产的贡献是定量的。
In eukaryotes small secreted peptides are often proteolytically cleaved from larger precursors. In Saccharomyces cerevisiae multiple proteolytic processing steps are required for production of mature 12-amino-acida-factor from its 36-amino-acid precursor. This study provides additional genetic data supporting a direct role for Afc1p in cleavage of the carboxyl-terminal tripeptide from the CAAX motif of the prenylateda-factor precursor. In addition, Afc1p had a second role ina-factor processing that was independent of, and in addition to, its role in the carboxyl-terminal processing in vivo. Using ubiquitin-a-factor fusions we confirmed that the pro-region of thea-factor precursor was not required for production of the mature pheromone. However, the pro-region of thea-factor precursor contributed quantitatively toa-factor production.
DOI: 10.1016/s0021-9258(18)98729-6
发表时间: 1991-08
期刊: The Journal of biological chemistry
影响因子: --
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S. Moores;M. Schaber;S. Mosser;E. Rands;M. B. O'Hara;V. Garsky;M. Marshall;D. Pompliano;J. Gibbs
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