Scientists have known about membraneless intracellular ribonucleoprotein granules, but didn’t understand how they formed, according to a news release. They now know that RNA drives their formation, using “basically the same type of immiscibility phenomenon that drives oil to form droplets in water,” coauthor Ashok Deniz of the Scripps Research Institute says in the release.
See P.R. Banerjee et al., “Reentrant phase transition drives dynamic substructure formation in ribonucleoprotein droplets,” Angewandte Chemie, doi:10.1002/anie.201703191, 2017.
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