Mol Cell Biol. 1995 Jun;15(6):3363-71.

Edery I, Chu LL, Sonenberg N, Pelletier J.

An efficient strategy to isolate full-length cDNAs based on an mRNA cap retention procedure (CAPture).

An eIF-4E fusion protein is used to bind the caps of RNA/DNA duplexes. RNase A cuts single stranded RNAs, thus separating the complexes from the cDNA if they are not full length.