Journal
BIOCHEMICAL SOCIETY TRANSACTIONS
Volume 48, Issue 6, Pages 2669-2689Publisher
PORTLAND PRESS LTD
DOI: 10.1042/BST20200467
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Funding
- Wolfson College/Vice Chancellor's Award
- BBSRC/AstraZeneca CASE [BB/P504853]
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The structure-function paradigm has guided investigations into the molecules involved in cellular signalling for decades. The peripheries of this paradigm, however, start to unravel when considering the co-operation between proteins and the membrane in signalling processes. Intrinsically disordered regions hold distinct advantages over folded domains in terms of their binding promiscuity, sensitivity to their particular environment and their ease of modulation through post-translational modifications. Low sequence complexity and bias towards charged residues are also favourable for the multivalent electrostatic interactions that occur at the surfaces of lipid bilayers. This review looks at the principles behind the successful marriage between protein disorder and membranes in addition to the role of this partnership in modifying and regulating signalling in cellular processes. The HVR (hypervariable region) of small GTPases is highlighted as a well-studied example of the nuanced role a short intrinsically disordered region can play in the fine-tuning of signalling pathways.
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