Your browser doesn't support javascript.
loading
A New Variant of Emissive RNA Alphabets.
Ludford, Paul T; Yang, Shenghua; Bucardo, Marcela S; Tor, Yitzhak.
Afiliação
  • Ludford PT; Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0358, USA.
  • Yang S; Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0358, USA.
  • Bucardo MS; Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0358, USA.
  • Tor Y; Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0358, USA.
Chemistry ; 28(13): e202104472, 2022 Mar 01.
Article em En | MEDLINE | ID: mdl-35018663
ABSTRACT
A new fluorescent ribonucleoside alphabet (mth N) consisting of pyrimidine and purine analogues, all derived from methylthieno[3,4-d]pyrimidine as the heterocyclic core, is described. Large bathochromic shifts and high microenvironmental susceptibility of their emission relative to previous alphabets derived from thieno[3,4-d]pyrimidine (th N) and isothiazole[4,3-d]pyrimidine (tz N) scaffolds are observed. Subjecting the purine analogues to adenosine deaminase, guanine deaminase and T7 RNA polymerase indicate that, while varying, all but one enzyme tolerate the corresponding mth N/mth NTP substrates. The robust emission quantum yields, high photophysical responsiveness and enzymatic accommodation suggest that the mth N alphabet is a biophysically viable tool and can be used to probe the tolerance of nucleoside/tide-processing enzymes to structural perturbations of their substrates.
Assuntos
Palavras-chave

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Ribonucleosídeos / RNA Idioma: En Revista: Chemistry Ano de publicação: 2022 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Ribonucleosídeos / RNA Idioma: En Revista: Chemistry Ano de publicação: 2022 Tipo de documento: Article