Specific fluorescent labeling of 7-(aminomethyl)-7-deazaguanosine located in the anticodon of tRNATyr isolated from E. coli mutant.
AUTOR(ES)
Kasai, H
RESUMO
Under-modified E. coli tRNATyr that contains 7-(aminomethyl)-7-deazaguanosine in place of Q nucleoside can be chemically modified by dansyl chloride under neutral conditions. Fluorescent labelling specifically occurred only in the 7-(aminomethyl)-7-deazaguanine moiety. The modified tRNATyr was found to be active both in aminoacylation and in binding to ribosomes.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=328008Documentos Relacionados
- Structure determination of a nucleoside Q precursor isolated from E. coli tRNA: 7-(aminomethyl)-7-deazaguanosine.
- Fluoresceinylthiocarbamyl-tRNATyr: a useful derivative of tRNATyr (E.coli) for physicochemical studies.
- All human tRNATyr genes contain introns as a prerequisite for pseudouridine biosynthesis in the anticodon.
- Isolation of Q nucleoside precursor present in tRNA of an E. coli mutant and its characterization as 7-(cyano)-7-deazaguanosine.
- Novel non-suppressing mutants of Escherichia coli tRNATyr su+3.