Structural insight to mutation effects uncover a common allosteric site in class C GPCRs

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MOTIVATION: Class C G protein-coupled receptors (GPCRs) regulate important physiological functions and allosteric modulators binding to the transmembrane domain constitute an attractive and, due to a lack of structural insight, a virtually unexplored potential for therapeutics and the food industry. Combining pharmacological site-directed mutagenesis data with the recent class C GPCR experimental structures will provide a foundation for rational design of new therapeutics.

RESULTS: We uncover one common site for both positive and negative modulators with different amino acid layouts that can be utilized to obtain selectivity. Additionally, we show a large potential for structure-based modulator design, especially for four orphan receptors with high similarity to the crystal structures.

AVAILABILITY AND IMPLEMENTATION: All collated mutagenesis data is available in the GPCRdb mutation browser at and can be analyzed online or downloaded in excel format.

CONTACT: SUPPLEMENTARY INFORMATION: Available at Bioinformatics online.

Original languageEnglish
Article numberbtw784
JournalBioinformatics (Oxford, England)
Issue number8
Pages (from-to)1116-1120
Number of pages5
Publication statusPublished - 2017

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ID: 170677847