Charged sequence motifs increase affinity towards liquid-liquid phase separation
Szabo, A. L.; Santa, A.; Gaspari, Z.
Show abstract
Protein phase separation is a major governing factor in multiple cellular processes, such as those concerning RNA metabolism and RNA-binding proteins. Despite many key observations, the exact structural characteristics of proteins involved in the process are still not fully deciphered. In this work we show that proteins harbouring sequence regions with specific charged residue patterns are significantly associated with liquid-liquid phase separation. In particular, regions with repetitive arrays of alternating charges show the strongest association, whereas segments with generally high charge density and single -helices also show detectable but weaker connections.
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