Deletion analysis of the Saccharomyces GAL gene cluster. Transcription from three promoters.

Deletion analysis of the Saccharomyces GAL gene cluster. Transcription from three promoters.
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酵母菌 GAL 基因簇的缺失分析。

DOI:
10.1016/0022-2836(81)90245-x
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发表时间:
1981
影响因子:
5.6
通讯作者:
Davis,RW
Davis,RW
中科院分区:
生物学2区
文献类型:
--
作者:
StJohn,TP;Scherer,S;McDonell,MW;Davis,RW

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酿酒酵母GAL7-GAL10-GAL1基因簇中有5个在体外构建的缺失,这些缺失允许明确地将遗传功能分配给先前已鉴定的每个转录区。GAL7和GAL10基因从右向左转录,而GAL1基因从左向右转录。GAL10和GAL1之间差异转录区域的缺失,包括这两个基因所有转录本5‘端的同源序列,导致了GAL7+,GAL10−,GAL1−基因型。这一结果表明,这三个基因中的每一个都可以从不同的启动子区域转录。一株含有温度敏感突变的酵母菌株,在不允许的温度下,积累了一个包含GAL7和GAL10序列的大RNA,一个包含GAL7序列的小RNA和至少三个包含GAL1序列的较大RNA。删除包含在较大的GAL1转录本中但超出GAL1(半乳糖激酶)编码序列的dna序列会导致一株能够补充Gal1−突变的菌株。这一结果表明,较大的转录本可能不是稳定的GAL1mRNAs的专有前体。
Five deletions, constructedin vitro, have been incorporated into theSaccharomyces Cerevisiae GAL7-GAL10-GAL1gene cluster on chromosome II. These deletions permit unambiguous assignment of genetic function to each of the previously identified transcribed regions. TheGAL7andGAL10genes are transcribed right to left while theGAL1gene is transcribed left to right. A deletion of the divergently transcribed region betweenGAL10andGAL1including the sequences homologous to the 5′ ends of all transcripts for both of these genes results in aGAL7+,gal10−,gal1−genotype. This result suggests that each of these three genes can be transcribed from separate promoter regions. A yeast strain, containing therna1-1temperature-sensitive mutation, at non-permissive temperatures accumulates a large RNA containing bothGAL7andGAL10sequences, a small RNA containingGAL7sequences and at least three larger RNAs containingGAL1sequences. Deletion of DNA sequences contained within the largerGAL1transcripts but beyond theGAL1(galactokinase) coding sequences results in a strain able to complementgal1−mutants. This result suggests that the larger transcripts may not be obligate precursors to the stableGAL1mRNAs.
DOI: 10.1128/jb.108.1.179-183.1971
发表时间: 1971-01-01
影响因子: 3.2
作者:
BASSEL, J;MORTIMER, R
通讯作者: MORTIMER, R
控制酵母中半乳糖途径酶合成的基因的调节。
DOI: 10.1093/genetics/54.3.911
发表时间: 1966
期刊: Genetics
影响因子: 3.3
作者:
H. C. Douglas;D. Hawthorne
通讯作者: D. Hawthorne
DOI: --
发表时间: 1980
影响因子: 3.2
作者:
K. Matsumoto;Y. Adachi;A. Toh;Y. Oshima
通讯作者: Y. Oshima
通过差异噬菌斑过滤杂交从酿酒酵母中分离半乳糖诱导的 DNA 序列
DOI: --
发表时间: 1979
期刊: Cell
影响因子: 64.5
作者:
T. John;Ronald W. Davis
通讯作者: Ronald W. Davis
DOI: 10.1128/jb.99.3.807-814.1969
发表时间: 1969-01-01
影响因子: 3.2
作者:
HUTCHISON, HT;HARTWELL, LH;MCLAUGHLIN, CS
通讯作者: MCLAUGHLIN, CS