The DIVa maturase binding site in the yeast group II intron aI2 is essential for intron homing but not for in vivo splicing.

Citation:

Huang H-R, Chao MY, Armstrong B, Wang Y, Lambowitz AM, Perlman PS. The DIVa maturase binding site in the yeast group II intron aI2 is essential for intron homing but not for in vivo splicing. Mol Cell Biol. 23 (23) :8809-19.