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. 1984 Feb 24;12(4):1889–1900. doi: 10.1093/nar/12.4.1889

Initiation of transcription in yeast mitochondria: analysis of origins of replication and of genes coding for a messenger RNA and a transfer RNA.

K A Osinga, E De Vries, G T Van der Horst, H F Tabak
PMCID: PMC318628  PMID: 6322126

Abstract

The initiation of transcription of the yeast mitochondrial genes coding for subunit I of cytochrome c oxidase (COX1) and for tRNA1Thr has been examined. COX1 messenger RNA synthesis is initiated in a conserved nonanucleotide sequence (ATATAAGTA) which we have previously found immediately upstream of ribosomal RNA genes at positions at which RNA synthesis starts. The 5'-end of the precursor of tRNA1Thr is located in a variant nonanucleotide motif (TTATAAGTA), which may be characteristic for tRNA genes. Using a partially purified fraction of mtRNA polymerase, we demonstrate that RNA synthesis is precisely initiated in vitro in nonanucleotide sequences preceding both ribosomal RNA-, tRNA- and messenger RNA-encoding genes and origins of replication.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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