A systematic survey identifies prions and illuminates sequence features of prionogenic proteins.

A systematic survey identifies prions and illuminates sequence features of prionogenic proteins.
复制标题

一项系统调查鉴定了朊病毒并阐明了朊病毒蛋白的序列特征。

DOI:
10.1016/j.cell.2009.02.044
复制
发表时间:
2009-04-03
期刊:
影响因子:
64.5
通讯作者:
Lindquist S
Lindquist S
中科院分区:
生物学1区
文献类型:
--
作者:
Alberti S;Halfmann R;King O;Kapila A;Lindquist S

文献摘要

参考文献

被引文献

相似文献

朊病毒是在结构和功能不同的状态之间转换的蛋白质,其中一种或多种是可传播的。在酵母中,这种能力允许它们作为表型遗传的非孟德尔元件。为了加深我们对朊病毒生物学的理解,我们对S. cerevisiae,随后对100种朊病毒候选物进行实验研究。我们发现了一个意想不到的氨基酸偏好在聚集倾向的候选人,并发现其中19个也可以形成朊病毒。这些朊病毒蛋白中至少有一种,Mot3,在其自然环境中产生真正的朊病毒,增加群体水平的表型异质性。这些蛋白质的自我延续状态提供了可遗传的表型变异的巨大来源,增加了酵母菌群对不同环境的适应性。
Prions are proteins that convert between structurally and functionally distinct states, one or more of which is transmissible. In yeast, this ability allows them to act as non-Mendelian elements of phenotypic inheritance. To further our understanding of prion biology, we conducted a bioinformatic proteome-wide survey for prionogenic proteins in S. cerevisiae, followed by experimental investigations of 100 prion candidates. We found an unexpected amino acid bias in aggregation-prone candidates and discovered that 19 of these could also form prions. At least one of these prion proteins, Mot3, produces a bona fide prion in its natural context that increases population-level phenotypic heterogeneity. The self-perpetuating states of these proteins present a vast source of heritable phenotypic variation that increases the adaptability of yeast populations to diverse environments.
DOI: 10.1126/science.1150021
发表时间: 2008-04-18
期刊: SCIENCE
影响因子: 56.9
作者:
Hillenmeyer, Maureen E.;Fung, Eula;Giaever, Guri
通讯作者: Giaever, Guri
新发现的朊病毒与酿酒酵母中染色质重塑因子 Swi1 相关
DOI: 10.1038/ng.112
发表时间: 2008-04-01
期刊: NATURE GENETICS
影响因子: 30.8
作者:
Du, Zhiqiang;Park, Kyung-Won;Li, Liming
通讯作者: Li, Liming
DOI: 10.1074/jbc.m802071200
发表时间: 2008-05-30
影响因子: 4.8
作者:
Alexandrov, Ilya M.;Vishnevskaya, Aleksandra B.;Ter-Avanesyan, Michael D.;Kushnirov, Vitaly V.
通讯作者: Kushnirov, Vitaly V.
DOI: 10.1038/2151043a0
发表时间: 1967-01-01
期刊: NATURE
影响因子: 64.8
作者:
GRIFFITH, JS
通讯作者: GRIFFITH, JS
DOI: 10.1093/emboj/cdf415
发表时间: 2002-08-01
期刊: EMBO JOURNAL
影响因子: 11.4
作者:
Hongay, C;Jia, N;Winston, F
通讯作者: Winston, F