Theissen H, Etzerodt M, Reuter R, Schneider C, Lottspeich F, Argos P, Lührmann R, Philipson L.

EMBO J. 1986 Dec 1;5(12):3209-17.

Cloning of the human cDNA for the U1 RNA-associated 70K protein.

Clones the full-length cDNA by affinity purification with m7G antibodies, and RNAse A digestion of the incomplete cDNA/RNA duplexes. Cites Schneider 1986 for the method, but could not find this reference.