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Nucleic Acids Research, 1981, Vol. 9, No. 23 6369-6378
© 1981

MOLECULAR BIOLOGY

RNA synthesis in isolated yeast mitochondria

Gert S.P. Groot*, Nel van Harten-Loosbroek*, Gert-Jan B. van Ommen{dagger} and Hans L.A. Pijst+

Section for Molecular Biology, Department of Biochemistry, University of Amsterdam Kruislaan 320, 1098 SM Amsterdam, The Netherlands

Received September 21, 1981.

Isolated yeast mitochondria incorporate added UTP into RNA. Amongst the products formed are the two rRNAs, 4S RNA and several components presumed to be mRNAs. In w+ strains (containing an intervening sequence in the 21S rRNA gene) besides mature 21S rRNA a transcript could be detected still containing nucleotide sequences transcribed from this intervening sequence. In w– strains (not containing this intervening sequence) also a longer form of the 21S rRNA could be observed. These results suggest that isolated yeast mitochondria are capable of carrying out RNA synthesis and processing, including splicing.

*Present address: Biochemical Laboratory, Free University, de Boelelaan 1085, 1081 HV Amsterdam, The Netherlands.

{dagger}Present address: Pediatric Clinic, University of Amsterdam, Binnengasthusis, 1012 GA Amsterdam, The Netherlands.

+Present address: Laboratory for Plant Physiology, University of Amsterdam, 1098 SSM Amsterdam, The Netherlands.


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[Abstract] [Full Text] [PDF]


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