Rabinowitz JS, Lambert JD. Spiralian quartet developmental potential is regulated by specific localization elements that mediate asymmetric RNA segregation. Development. 2010 Nov 1. [Epub ahead of print]

Invading an RNA stem-loop with a complementary Morpholino prevents asymmetric RNA segregation in the developing Ilyanassa obligata snail. “Our characterization of this structure and a similar one from another first quartet RNA suggests a model for how first quartet specificity is achieved.”