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Lipids modulate the insertion and folding of the nascent chains of alpha helical membrane proteins

Research output: Contribution to journalReview articlepeer-review

Original languageEnglish
JournalBiochemical Society Transactions
Early online date6 Sep 2018
DOIs
Accepted/In press31 Jul 2018
E-pub ahead of print6 Sep 2018

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Abstract

Membrane proteins must be inserted into a membrane and folded into their correct structure to function correctly. This insertion occurs during translation and synthesis by the ribosome for most α-helical membrane proteins. Precisely how this co-translational insertion and folding occurs, and the role played by the surrounding lipids, is still not understood. Most of the work on the influence of the lipid environment on folding and insertion has focussed on denatured, fully translated proteins, and thus does not replicate folding during unidirectional elongation of nascent chains that occurs in the cell. This review aims to highlight recent advances in elucidating lipid composition and bilayer properties optimal for insertion and folding of nascent chains in the membrane and in the assembly of oligomeric proteins.

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