Controlling biomolecular condensates via chemical reactions
نویسندگان
چکیده
Biomolecular condensates are small droplets forming spontaneously in biological cells via phase separation. They play a role many cellular processes, but it is unclear how control them. Cellular regulation often relies on post-translational modifications of proteins. For biomolecular condensates, such chemical could alter the molecular interaction key condensate components. We here test this idea using theoretical model based non-equilibrium thermodynamics. In particular, we describe reactions transition-state theory, which accounts for non-ideality identify that fast control, like cell signaling, only possible when external energy input drives reaction out equilibrium. If differs inside and outside droplet, even to droplet sizes. Such an imbalance be created by enzymes localizing droplet. Since situation typical cells, speculate our proposed mechanism used stabilize multiple with independently controlled size count. Our provides novel thermodynamically consistent framework describing subject reactions.
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ژورنال
عنوان ژورنال: Journal of the Royal Society Interface
سال: 2021
ISSN: ['1742-5662', '1742-5689']
DOI: https://doi.org/10.1098/rsif.2021.0255