Lipid-like Peptides can Stabilize Integral Membrane Proteins for Biophysical and Structural Studies.

ABSTRACT: A crucial bottleneck in membrane protein structural biology is the difficulty in identifying a detergent that can maintain the stability and functionality of integral membrane proteins (IMPs). Detergents are poor membrane mimics, and their common use in membrane protein crystallography may be one reason for the challenges in obtaining high-resolution crystal structures of many IMP families. Lipid-like peptides (LLPs) have detergent-like properties and have been proposed as alternatives for the solubilization of G protein-coupled receptors and other membrane proteins. Here, we systematically analyzed the stabilizing effect of LLPs on integral membrane proteins of different families. We found that LLPs could significantly stabilize detergent-solubilized IMPs in vitro. This stabilizing effect

SUBMITTER: Veith K 

PROVIDER: S-EPMC5601290 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature