Abstract
The initiator tRNAsMet from the cytoplasm and chloroplasts of Phaseolus vulgaris have been purified and sequenced. The sequence of bean cytoplasmic initiator tRNAiMet is : pA-U-C-A-G-A-G-U-m1G-m2G-C-G-C-A-G-C-G-G-A-A-G-C-G-U-m2G-G-U-G-G-G2-C-C-C-A-U-t6A-A-C-C-C-A-C-A-G-m7G-D-m5C-C-C-A-G-G-A-psi-C-G-m1A-A-A-C-C-U-Gm-G-C-U-C-U-G-A-U-A-C-C-AOH. The sequence of bean cytoplasmic tRNAiMet is almost identical to that of wheat germ and shows a high degree of homology with other cytoplasmic initiator tRNAs. The sequence of bean chloroplast initiator tRNAfMet is : pC-G-C-G-G-A-G-U-A-G-A-G-C-A-A-C-U-U-Gm-G-D-A-G-C-U-C-G-C-A-A-G-G-C-U-C-A-U-A-A-C-C-U-U-G-A-A-m7G-acp3U-U-A-C-G-G-G-T-psi-C-A-A-A-U-C-C-C-G-U-C-U-C-C-G-C-A-A- C-C-AOH. Bean chloroplast initiator tRNAfMet sequence shows procaryotic characteristics at the 5' end of the acceptor stem and in the TpsiC loop, but also contains some distinctive features.
MeSH Terms
Base Sequence
Chloroplasts/metabolism
Cytoplasm/metabolism
Eukaryotic Cells/metabolism
Fabaceae/genetics
Nucleic Acid Conformation
Plants, Medicinal
Prokaryotic Cells/metabolism
RNA, Transfer, Amino Acyl/genetics
RNA, Transfer, Met
Species Specificity
Chemicals
RNA, Transfer, Amino Acyl
RNA, Transfer, Met
tRNA(m)(Met), methionine-
tRNA, formylmethionine-
Authors & Affiliations
3 authors, click to expand affiliations / ORCID
Canaday J
Guillemaut P
Weil J H
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