rs121913563

This is a variant in the MC4R gene that changes a alanine to an threonine.

ClinVar annotation

Pathogenic★★★
10 submitters8 publications

BODY MASS INDEX QUANTITATIVE TRAIT LOCUS 20 (BMIQ20); MC4R-related disorder; Obesity; not specified

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Research that mentions this SNP (1)

Disease variants in genomes of 44 centenarians
Case reportN=44Yun Freudenberg‐Hua et al.(2014)· Molecular Genetics & Genomic Medicine

Whole genome sequencing of 44 Ashkenazi Jewish centenarians identified 216 coding variants annotated as pathogenic or likely pathogenic in ClinVar. The study found 130 rare variants (MAF <5%) reported to cause degenerative, neoplastic, and cardiac diseases with various inheritance patterns. Notably, several carriers had no clinical manifestations despite carrying variants linked to serious diseases (e.g., an APOE ε4 homozygote without Alzheimer's disease, a UBQLN2 P525S carrier without ALS). These findings suggest incomplete penetrance and reduced clinical significance for many reported disease mutations.

Traits studied:Aging and longevityAlzheimer's diseaseAmyotrophic lateral sclerosisBecker muscular dystrophyBrugada syndromeCancer/NeoplasmCardiac arrhythmiaCardiomyopathyDeafnessDementia with Lewy bodiesDiabetesDuchenne muscular dystrophyEhlers-Danlos syndromeGaucher diseaseGlaucomaHypercholesterolemiaIchthyosisKeratoconusLong QT syndromeObesityParkinson's diseasePremature ovarian failureRetinitis pigmentosa

About MC4R

The protein encoded by this gene is a membrane-bound receptor and member of the melanocortin receptor family. The encoded protein interacts with adrenocorticotropic and MSH hormones and is mediated by G proteins. This is an intronless gene. Defects in this gene are a cause of autosomal dominant obesity. [provided by RefSeq, Jan 2010]

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Gene information from NCBI Gene. Variant classifications from ClinVar.

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