ISSN 1662-4009 (online)

ey0017.11-3 | New Genetic Findings | ESPEYB17

11.3. Human gain-of-function MC4R variants show signaling bias and protect against obesity

LA Lotta , J Mokrosinski , E Mendes de Oliveira , C Li , SJ Sharp , J Luan , B Brouwers , V Ayinampudi , N Bowker , N Kerrison , V Kaimakis , D Hoult , ID Stewart , E Wheeler , FR Day , JRB Perry , C Langenberg , NJ Wareham , IS Farooqi

To read the full abstract: Cell 2019;177 (3):59–-607.e9. PMID 31002796.A recent GWAS showed that the heritability of thinness was comparable to that of obesity (1). Some loci showed effects across the entire BMI distribution. This is also true for variants in MC4R. The present study analyzed data on ˜0.5 million people from UK Biobank, with a focus on 61 nonsynonymous var...

ey0019.15-3 | Obesity | ESPEYB19

15.3. Obesity-associated GNAS mutations and the melanocortin pathway

E Mendes de Oliveira , JM Keogh , F Talbot , E Henning , R Ahmed , A Perdikari , R Bounds , N Wasiluk , V Ayinampudi , I Barroso , J Mokrosinski , D Jyothish , S Lim , S Gupta , M Kershaw , C Matei , P Partha , T Randell , A McAulay , LC Wilson , T Cheetham , EC Crowne , P Clayton , IS Farooqi

N Engl J Med. 2021;385(17):1581-92. doi: 10.1056/NEJMoa2103329.PubMed ID: 34614324Brief Summary: The authors performed whole exome sequencing in 2548 children with severe obesity and identified 22 GNAS mutation carriers, almost all of which disrupted melanocortin 4 receptor (MC4R) signaling.The gene GNAS encodes the stimulatory G-protein alpha subunit pr...