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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Tzagoloff, A. Dieckmann, C. L. Pape, L. K. |
| Abstract | Nuclear pet mutants of Saccharomyces cerevisiae deficient in mitochondrial respiration have been studied genetically and biochemically. Seven noncomplementing mutations leading to a deficiency of mitochondrial cytochrome b have been assigned to a single complementation group (group 60). Examination of mitochondrial RNA by blot hybridization on diazobenzyloxymethyl-paper has revealed that group 60 mutants produce a large number of novel apocytochrome b transcripts not detected in wild-type yeast. The product of the gene affected in the mutants, therefore, appears to be required either for correct transcription or for processing of apocytochrome b premessenger RNA. The gene has been designated CBP1. A representative mutant from complementation group 60 (N5-26) has been transformed to respiratory competency with a recombinant plasmid pool consisting of random fragments of wild-type yeast nuclear DNA inserted into a vector capable of replicating in yeast and Escherichia coli. The complementation of the N5-26 mutation has been shown for a number of independent transformants to be due to the presence of plasmid DNA. The plasmid pG60/T10 was further characterized to have a nuclear DNA insert of 6.7 kilobase pairs. This plasmid complements the mutations of all group 60 mutants, thus confirming that it contains the CBP1 gene. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 6 |
| Volume Number | 79 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 1982-07-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Cytochromes Genetics DNA, Mitochondrial RNA, Messenger Cytochrome b Group Gene Expression Regulation Genes, Regulator Mutation Plasmids RNA Splicing Saccharomyces Cerevisiae Transcription, Genetic Research Support, U.S. Gov't, P.H.S. Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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