Mutational analysis of centromere DNA from chromosome VI of Saccharomyces cerevisiae.
Mutational analysis of centromere DNA from chromosome VI of Saccharomyces cerevisiae.
复制标题
酿酒酵母 VI 号染色体着丝粒 DNA 的突变分析。
DOI:
10.1128/mcb.8.6.2523-2535.1988
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发表时间:
1988
影响因子:
5.3
通讯作者:
Hieter,P
中科院分区:
文献类型:
--
作者:
Hegemann,JH;Shero,JH;Cottarel,G;Philippsen,P;Hieter,P
Saccharomyces cerevisiaecentromeres have a characteristic 120-base-pair region consisting of three distinct centromere DNA sequence elements (CDEI, CDEII, and CDEIII). We have generated a series of 26CENmutations in vitro (including 22 point mutations, 3 insertions, and 1 deletion) and tested their effects on mitotic chromosome segregation by using a new vector system. The yeast transformation vector pYCF5 was constructed to introduce wild-type and mutantCENDNAs onto large, linear chromosome fragments which are mitotically stable and nonessential. Six point mutations in CDEI show increased rates of chromosome loss events per cell division of 2- to 10-fold. Twenty mutations in CDEIII exhibit chromosome loss rates that vary from wild type (10-4) to nonfunctional (>10-1). These results directly identify nucleotides within CDEI and CDEIII that are required for the specification of a functional centromere and show that the degree of conservation of an individual base does not necessarily reflect its importance in mitoticCENfunction.
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影响因子:
2.9
作者:
H. Fritz;R. Belagaje;E. Brown;R. Fritz;R. Jones;R. G. Lees;H. Khorana
通讯作者:
H. Khorana
影响因子:
64.5
作者:
BLOOM, KS;CARBON, J
通讯作者:
CARBON, J
影响因子:
5.6
作者:
D. Stinchcomb;Carl Mann;Ronald W. Davis
通讯作者:
Ronald W. Davis
影响因子:
64.5
作者:
DUNN, B;SZAUTER, P;SZOSTAK, JW
通讯作者:
SZOSTAK, JW
DOI:
--
发表时间:
1956
期刊:
Cold Spring Harbor Symposia on Quantitative Biology
影响因子:
--
作者:
H. Roman
通讯作者:
H. Roman