G. Stork et al., MODIFIED OLIGONUCLEOTIDES - EFFECT OF 4-ATOM VS 5-ATOM CHIMERIC INTERNUCLEOSIDE LINKAGES ON DUPLEX STABILITY, Tetrahedron letters, 36(36), 1995, pp. 6387-6390
The question whether a four or a five atom non phosphorus based intern
ucleoside link leads to stronger binding of the resulting chimeric oli
gonucleotides to complementary sequences has been examined by comparin
g melting temperatures of relevant duplexes.