Dawn E. Watkins-Chow, Arturo A. Incao, Cecelia Rivas, Gene Elliott, Lisa J. Garrett, William J. Pavan
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The MFSD12 p.Tyr182His common variant is sufficient to alter mouse agouti coat color
MFSD12 functions as a transmembrane protein required for import of cysteine into melanosomes and lysosomes. The MFSD12 locus has been associated with phenotypic variation in skin color across African, Latin American, and East Asian populations. The frequency of a particular MFSD12 coding variant, rs2240751 (MAF = 0.08), has been reported to correlate with solar radiation and occur at highest frequency in Peruvian (PEL MAF = 0.48) and Han Chinese (CHB MAF = 0.40) populations, suggesting it could be causative for associated phenotypic variation in skin color. We have generated a mouse knock-in allele, Mfsd12Y182H, to model the human missense p.Tyr182His human variant. We demonstrate that the variant transcript is stably expressed and that agouti mice homozygote for the variant allele are viable with an altered coat color. This in vivo data confirms that the MFSD12 p.Tyr182His variant functions as a hypomorphic allele sufficient to alter mammalian pigmentation.
期刊介绍:
Pigment Cell & Melanoma Researchpublishes manuscripts on all aspects of pigment cells including development, cell and molecular biology, genetics, diseases of pigment cells including melanoma. Papers that provide insights into the causes and progression of melanoma including the process of metastasis and invasion, proliferation, senescence, apoptosis or gene regulation are especially welcome, as are papers that use the melanocyte system to answer questions of general biological relevance. Papers that are purely descriptive or make only minor advances to our knowledge of pigment cells or melanoma in particular are not suitable for this journal. Keywords
Pigment Cell & Melanoma Research, cell biology, melatonin, biochemistry, chemistry, comparative biology, dermatology, developmental biology, genetics, hormones, intracellular signalling, melanoma, molecular biology, ocular and extracutaneous melanin, pharmacology, photobiology, physics, pigmentary disorders