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Trends Biochem Sci. 2015 Nov;40(11):662-672. doi: 10.1016/j.tibs.2015.08.012. Epub 2015 Oct 15.

Emerging Roles of Disordered Sequences in RNA-Binding Proteins.

Author information

1
Terry Fox Molecular Oncology Group and Segal Cancer Center, Bloomfield Center for Research on Aging, Lady Davis Institute for Medical Research and Departments of Oncology and Medicine, McGill University, Montréal, Québec, H3T 1E2, Canada.
2
Terry Fox Molecular Oncology Group and Segal Cancer Center, Bloomfield Center for Research on Aging, Lady Davis Institute for Medical Research and Departments of Oncology and Medicine, McGill University, Montréal, Québec, H3T 1E2, Canada. Electronic address: stephane.richard@mcgill.ca.

Abstract

RNA-binding proteins (RBPs) maintain RNA metabolism homeostasis in the cell by regulating temporal, spatial, and functional dynamics of RNAs. RBPs achieve RNA binding not only through classical structured RNA-binding domains but also with sequences that are intrinsically disordered and often of low amino acid complexity. RBP-RNA interactions form ribonucleoprotein (RNP) complexes and emerging evidence indicates that RNPs form higher structures or lattices, promoting territories of phase transitions. Herein, we discuss the role of disordered sequences in RBPs, their function in RNPs and protein networks, as well as their regulation by post-translational modifications and how RBP deregulation leads to disease.

KEYWORDS:

RNA granules; RNA-binding proteins; intrinsically disordered proteins; low complexity sequences; phase transition; short linear motifs

PMID:
26481498
DOI:
10.1016/j.tibs.2015.08.012
[Indexed for MEDLINE]

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