Activation of human RNase L by 2'- and 5'-O-methylphosphonate-modified oligoadenylates

. 2012 Jan 01 ; 22 (1) : 181-5. [epub] 20111123

Jazyk angličtina Země Velká Británie, Anglie Médium print-electronic

Typ dokumentu časopisecké články, práce podpořená grantem

Perzistentní odkaz   https://www.medvik.cz/link/pmid22169265
Odkazy

PubMed 22169265
DOI 10.1016/j.bmcl.2011.11.040
PII: S0960-894X(11)01584-8
Knihovny.cz E-zdroje

To determine the influence of internucleotide linkage and sugar ring conformation, and the role of 5'-terminal phosphate, on the activation of human RNase L, a series of 2'- and 5'-O-methylphosphonate-modified tetramers were synthesized from appropriate monomeric units and evaluated for their ability to activate human RNase L. Tetramers pAAAp(c)X modified by ribo, arabino or xylo 5'-phosphonate unit p(c)X activated RNase L with efficiency comparable to that of natural activator. Moreover, incorporation of phosphonate linkages ensured the stability against cleavage by nucleases. The substitution of 5'-terminal phosphate for 5'-terminal phosphonate in tetramer p(c)XAAA afforded tetramers with excellent activation efficiency and with complete stability against cleavage by phosphomonoesterases.

Citace poskytuje Crossref.org

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