Complexes from Trypanosoma brucei that exhibit deletion editing and other editing-associated properties
Complexes from Trypanosoma brucei that exhibit deletion editing and other editing-associated properties
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来自布氏锥虫的复合物表现出删除编辑和其他编辑相关特性
DOI:
--
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发表时间:
1996
影响因子:
5.3
通讯作者:
Kenneth D. Stuart
中科院分区:
文献类型:
--
作者:
R. A. Corell;L. Read;G. R. Riley;Jacob K. Nellissery;Thomas E. Allen;M. L. Kable;Michael D. Wachal;S. Seiwert;P. J. Myler;Kenneth D. Stuart
Transcripts from many mitochondrial genes in kinetoplastids undergo RNA editing, a posttranscriptional process which inserts and deletes uridines. By assaying for deletion editing in vitro, we found that the editing activity from Trypanosoma brucei mitochondrial lysates (S.D. Seiwert and K.D. Stuart), Science 266:114-117,1994) sediments with a peak of approximately 20S. RNA helicase, terminal uridylyl transferase, RNA ligase, and adenylation activities, which may have a role in editing, cosediment in a broad distribution, with most of each activity at 35 to 40S. Most ATPase 6 (A6) guide RNA and unedited A6 mRNA sediments at 20 to 30S, with some sedimenting further into the gradient, while most edited A6 mRNA sediments at >35S. Several mitochondrial proteins which cross-link specifically with guide RNA upon UV treatment also sediment in glycerol gradients. Notably, a 65-kDa protein sediments primarily at approximately 20S, a 90-kDa protein sediments at 35 to 40S, and a 25-kDa protein is present at <10S. Most ribonucleoprotein complexes that form with gRNA in vitro sediment at 10 to 20S, except for one, which sediments at 30 to 45S. These results suggest that RNA editing takes place within a multicomponent complex. The potential functions of and relationships between the 20S and 35 to 40S complexes are discussed.
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DOI:
10.1096/fasebj.7.1.8422975
发表时间:
1993
期刊:
FASEB journal : official publication of the Federation of American Societies for Experimental Biology
影响因子:
--
作者:
Hajduk,SL;Harris,ME;Pollard,VW
通讯作者:
Pollard,VW
DOI:
--
发表时间:
1994
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Riley,GR;Corell,RA;Stuart,K
通讯作者:
Stuart,K
DOI:
10.1016/0167-4781(95)00025-c
发表时间:
1995
期刊:
Biochimica et biophysica acta
影响因子:
--
作者:
Shu,HH;Stuart,K;Göringer,HU
通讯作者:
Göringer,HU
影响因子:
14.9
作者:
Köller,J;Nörskau,G;Paul,AS;Stuart,K;Göringer,HU
通讯作者:
Göringer,HU
DOI:
--
发表时间:
1989
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Bakalara,N;Simpson,AM;Simpson,L
通讯作者:
Simpson,L