4785-04-0Relevant articles and documents
Synthesis of oligoribonucleotides with phosphonate-modified linkages
Pav, Ondej,Koiova, Ivana,Barvik, Ivan,Pohl, Radek,Budinsky, Milo,Rosenberg, Ivan
supporting information; experimental part, p. 6120 - 6126 (2011/10/10)
Solid phase synthesis of phosphonate-modified oligoribonucleotides using 2′-O-benzoyloxymethoxymethyl protected monomers is presented in both 3′→5′ and 5′→3′ directions. Hybridisation properties and enzymatic stability of oligoribonucleotides modified by regioisomeric 3′- and 5′-phosphonate linkages are evaluated. The introduction of the 5′-phosphonate units resulted in moderate destabilisation of the RNA/RNA duplexes (ΔTm -1.8 °C/mod.), whereas the introduction of the 3′-phosphonate units resulted in considerable destabilisation of the duplexes (ΔTm -5.7 °C/mod.). Molecular dynamics simulations have been used to explain this behaviour. Both types of phosphonate linkages exhibited remarkable resistance in the presence of ribonuclease A, phosphodiesterase I and phosphodiesterase II.
Synthetic reactions of ribonuclease T1.
SATO-ASANO,EGAMI
, p. 655 - 656 (2007/11/11)
-