ClinVar Miner

Submissions for variant NM_005912.3(MC4R):c.171del (p.Ser58fs)

gnomAD frequency: 0.00001  dbSNP: rs746241281
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
New York Genome Center RCV002468457 SCV002764319 pathogenic BODY MASS INDEX QUANTITATIVE TRAIT LOCUS 20 2021-07-24 criteria provided, single submitter clinical testing The c.171del, p.Ser58AlafsTer7 variant identified in the MC4R gene has been reported previously in a patient with obesity, hyperinsulinemia and hypertriglyceridemia (PMID:12364415). The variant alters the wild-type translational reading frame and is predicted to cause loss of normal protein function either through protein truncation or nonsense-mediated mRNA decay. The variant is absent in gnomAD v3.1.1 database indicating it is an extremely rare allele in the populations represented in this database. This truncation is within the first transmembrane domain and is presumably incompatible with a functional protein because domains closer to the C terminus are essential for receptor signaling and cell surface localization (PMID:12364415). Loss of function variants in MC4R are known to be pathogenic. Based on the available evidence, the heterozygous frameshift variant c.171del, p.Ser58AlafsTer7 variant in the MC4R gene is classified as pathogenic

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