Mapping RNA Regions in Eukaryotic Ribosomes That Are Accessible to Methidiumpropyl-EDTA·Fe(II) and EDTA·FeII)

Hogyu Han, Alanna Schepartz, Peter B. Dervan, Maria Pellegrini

Research output: Contribution to journalArticle

32 Citations (Scopus)

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 languageEnglish
Pages (from-to)9831-9844
Number of pages14
JournalBiochemistry
Volume33
Issue number33
DOIs
Publication statusPublished - 1994 Aug 1
Externally publishedYes

ASJC Scopus subject areas

  • Biochemistry

Fingerprint Dive into the research topics of 'Mapping RNA Regions in Eukaryotic Ribosomes That Are Accessible to Methidiumpropyl-EDTA·Fe(II) and EDTA·FeII)'. Together they form a unique fingerprint.

  • Cite this