Yeast-based Directed-evolution for High-throughput Structural Stabilization of G Protein-coupled Receptors (GPCRs)

Overview

Journal Sci Rep

Specialty Science

Date 2022 May 23

PMID 35606532

Authors

M Meltzer

T Zvagelsky

U Hadad

Niv Papo

Stanislav Engel

Affiliations

Soon will be listed here.

Abstract

The immense potential of G protein-coupled receptors (GPCRs) as targets for drug discovery is not fully realized due to the enormous difficulties associated with structure elucidation of these profoundly unstable membrane proteins. The existing methods of GPCR stability-engineering are cumbersome and low-throughput; in addition, the scope of GPCRs that could benefit from these techniques is limited. Here, we present a yeast-based screening platform for a single-step isolation of GRCR variants stable in the presence of short-chain detergents, a feature essential for their successful crystallization using vapor diffusion method. The yeast detergent-resistant cell wall presents a unique opportunity for compartmentalization, to physically link the receptor's phenotype to its encoding DNA, and thus enable discovery of stable GPCR variants with unprecedent efficiency. The scope of mutations identified by the method reveals a surprising amenability of the GPCR scaffold to stabilization, and suggests an intriguing possibility of amending the stability properties of GPCR by varying the structural status of the C-terminus.

Citing Articles

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