An ATP-dependent supercoiling topoisomerase of Chlamydomonas reinhardtii affects accumulation of specific chloroplast transcripts.
An ATP-dependent supercoiling topoisomerase of Chlamydomonas reinhardtii affects accumulation of specific chloroplast transcripts.
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莱茵衣藻的 ATP 依赖性超螺旋拓扑异构酶影响特定叶绿体转录物的积累。
DOI:
10.1093/nar/13.3.873
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发表时间:
1985
影响因子:
14.9
通讯作者:
Mosig,G
中科院分区:
文献类型:
--
作者:
Thompson,RJ;Mosig,G
We have found thatChlamydomonas reinhardtiicells contain an ATP- dependent topoisomerase activity that supercoils circular DNAin vitro. Subsequent addition of a type I topoisomerase eliminates the supercoils. Like bacterial gyrase, this activity is inhibited by low concentrations of novobiocin (<0.1 μM) and by nalidixic acid (<0.1 mM). We have examined the effects of these topoisomerase inhibitors on accumulation of various chloroplast transcriptsin vivo. Novobiocin differentially affected such transcripts; some transcripts became more abundant while many others were reduced in the presence of this drug. Nalidixic acid on the other hand caused many transcripts to become more abundant albeit to varying degrees.Inhibitors of this algal topoisomerase specifically stimulate a family of related transcripts which we have previously shown to be under light-dark control. We discuss how the inhibitors of this topoisomerase might exert theirin vivoeffects.
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影响因子:
10.4
作者:
Alarie,Y;Ferguson,JS;Stock,MF;Weyel,DA;Schaper,M
通讯作者:
Schaper,M
DOI:
--
发表时间:
1987
期刊:
Bulletin europeen de physiopathologie respiratoire
影响因子:
--
作者:
Karol,MH;Kamat,SR
通讯作者:
Kamat,SR
影响因子:
10.4
作者:
通讯作者:
--
DOI:
--
发表时间:
1980
期刊:
American Review of Respiratory Disease
影响因子:
--
作者:
M. Karol
通讯作者:
M. Karol
影响因子:
3.8
作者:
Brown,WE;Green,AH;Karol,MH;Alarie,YC
通讯作者:
Alarie,YC