Pan-cancer functional analysis of somatic mutations in G protein-coupled receptors

Area of Science:

• Biochemistry
• Genomics
• Oncology

Background:

• G Protein-coupled receptors (GPCRs) are crucial drug targets and frequently mutated in cancer.
• Understanding GPCR mutations in cancer is vital for therapeutic development.

Purpose of the Study:

• To identify GPCRs with cancer-associated mutations by comparing patient data with natural human genetic variation.
• To rank GPCRs based on mutation frequency and conservation for potential cancer relevance.

Main Methods:

• Utilized mutation data from the Genomic Data Commons and natural variation data from the 1000 Genomes Project.
• Analyzed mutation patterns across GPCR classes and conserved motifs using Two-Entropy Analysis.
• Employed Pareto Front Ranking to prioritize GPCRs based on cancer mutation frequency and conservation.

Main Results:

• Observed mutation enrichment in cancer patients within conserved GPCR motifs, like the Class A "DRY" motif.
• Confirmed correlation between residue conservation and cancer mutation frequency.
• Identified known cancer targets (LPA, mGlu receptors) and novel candidates (e.g., P2RY10).

Conclusions:

• Presents a ranked list of GPCRs with significant cancer-associated mutations.
• Highlights specific GPCR motifs and residues critical in cancer development.
• Provides a foundation for experimental validation of novel GPCR cancer targets.