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Literature DB >> 4000934

Structure and cotranscription of tobacco chloroplast genes for tRNAGlu(UUC), tRNATyr(GUA) and tRNAAsp(GUC).

M Ohme, T Kamogashira, K Shinozaki, M Sugiura.

Abstract

The location and nucleotide sequences of tobacco chloroplast genes for tRNAGlu(UUC), tRNATyr(GUA) and tRNAAsp(GUC) have been determined. These genes lie midway between the genes for alpha and beta/epsilon subunits of H+-ATPase on the large single-copy region of the chloroplast DNA. The gene organization is tRNAGlu - 59bp spacer - tRNATyr - 108bp spacer - tRNAAsp on the same DNA strand. Northern blot hybridization studies revealed that these three tRNA genes are cotranscribed. The transcription initiation site was localized at 24 bp upstream from the tRNAGlu coding region and its termination site at 90 bp downstream from the tRNAAsp coding region by S1 mapping. The tricistronic tRNA precursor is thus calculated to be 512 bases long. Its processing was also studied by S1 mapping.

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Year: 1985 PMID： 4000934 PMCID： PMC341055 DOI： 10.1093/nar/13.4.1045

Source DB: PubMed Journal: Nucleic Acids Res ISSN： 0305-1048 Impact factor: 16.971

13 in total

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10. Plastid DNA sequence homologies in the tobacco nuclear genome.

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Journal: Mol Gen Genet Date: 1992-12