Abstract
Methidiumpropyl-EDTA·Fe(II) [MPE·Fe(II)] and EDTA·Fe(II) were used to investigate the structure of Drosophila melanogaster ribosomes. Cleavage reactions were performed on intact ribosomes in cell lysates in vitro and analyzed by primer extension with reverse transcriptase using oligodeoxynucleotide primers. Regions of 18S and 28S ribosomal RNAs (rRNAs) which are accessible to MPE·Fe(II) and EDTA·Fe(II) are located almost exclusively within expansion segments. The accessibility of these regions to cleavage indicates that they are likely exposed on the surface of eukaryotic ribosomes. These results provide information about the overall tertiary structure of rRNA in ribosomes.
Original language | English |
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Pages (from-to) | 9831-9844 |
Number of pages | 14 |
Journal | Biochemistry |
Volume | 33 |
Issue number | 33 |
DOIs | |
Publication status | Published - 1994 Aug 1 |
Externally published | Yes |
ASJC Scopus subject areas
- Biochemistry