Facile Synthesis of N-Acyl-aminoacyl-pCpA for Preparation of Mischarged Fully Ribo tRNA
2014 (English)In: Bioconjugate chemistry, ISSN 1043-1802, E-ISSN 1520-4812, Vol. 25, no 11, 2086-2091 p.Article in journal (Refereed) Published
Chemical synthesis of N-acyl-aminoacyl-pdCpA and its ligation to tRNA(minus) CA is widely used for the preparation of unnatural aminoacyl-tRNA substrates for ribosomal translation. However, the presence of the unnatural deoxyribose can decrease incorporation yield in translation and there is no straightforward method for chemical synthesis of the natural ribo version. Here, we show that pCpA is surprisingly stable to treatment with strong organic bases provided that anhydrous conditions are used. This allowed development of a facile method for chemical aminoacylation of pCpA. Preparative synthesis of pCpA was also simplified by using t-butyl-dithiomethyl protecting group methodology, and a more reliable pCpA postpurification treatment method was developed. Such aminoacyl-pCpA analogues ligated to tRNA(minus) CA transcripts are highly active in a purified translation system, demonstrating utility of our synthetic method.
Place, publisher, year, edition, pages
2014. Vol. 25, no 11, 2086-2091 p.
Biochemistry and Molecular Biology
IdentifiersURN: urn:nbn:se:uu:diva-239993DOI: 10.1021/bc500441bISI: 000345309000020PubMedID: 25338217OAI: oai:DiVA.org:uu-239993DiVA: diva2:775916