نتایج جستجو برای: mc1r
تعداد نتایج: 701 فیلتر نتایج به سال:
The mouse mutations mahogany (mg) and mahoganoid (md) are negative modifiers of the Agouti coat color gene, which encodes a paracrine signaling molecule that induces a swithc in melanin synthesis from eumelanin to pheomelanin. Animals mutant for md or mg synthesize very little or no pheomelanin depending on Agouti gene background. The Agouti protein is normally expressed in the skin and acts as...
The melanocortin 1 receptor (MC1R) gene is related to the plumage color variations in chicken. Initially, the MC1R gene from 30 individuals was sequenced and nine polymorphisms were obtained. Of these, three and six single nucleotide polymorphisms (SNPs) were confirmed as synonymous and nonsynonymous mutations, respectively. Among these, three selected SNPs were genotyped using the restriction ...
Algae are found abundantly in tropical countries and have various invaluable metabolites which not fully explored for their skin health benefits. Therefore this study, we evaluated the anti-melanoma activity of lipophilic extract from a under-utilized brown algae widely on Indonesian coast, Sargassum crassifolium. Lipophilic S. crassifolium was obtained with chloroform: methanol extraction, ant...
We previously reported that three point mutations in SASH1 and mutated SASH1 promote melanocyte migration in dyschromatosis universalis hereditaria (DUH) and a novel p53/POMC/Gαs/SASH1 autoregulatory positive feedback loop is regulated by SASH1 mutations to induce pathological hyperpigmentation phenotype. However, the underlying mechanism of molecular regulation to cause this hyperpigmentation ...
The presence of dark melanin (eumelanin) within human epidermis represents one of the strongest predictors of low skin cancer risk. Topical rescue of eumelanin synthesis, previously achieved in "redhaired" Mc1r-deficient mice, demonstrated significant protection against UV damage. However, application of a topical strategy for human skin pigmentation has not been achieved, largely due to the gr...
Morphological diversity within closely related species is an essential aspect of evolution and adaptation. Mutations in the Melanocortin 1 receptor (Mc1r) gene contribute to pigmentary diversity in natural populations of fish, birds, and many mammals. However, melanism in the gray wolf, Canis lupus, is caused by a different melanocortin pathway component, the K locus, that encodes a beta-defens...
گیرندة ملانوکورتین-1 که توسط جایگاه گسترش کد میشود، نقش مهمی در تنوع رنگ پوشش در دامهای اهلی بازی میکند. در این بررسی، قطعهای به طول840 جفت باز از ناحیة 5َ کناری و قسمت اعظم توالی کدکنندة ژن MC1R گوسفندی در پانزده رأس گوسفند لری بختیاری با فنوتیپ متفاوت تعیین توالی شد. نتایج تعیین توالی شمار هشت چندشکلی تک نوکلئوتیدی را نشان داد که شامل پنج جهش هممعنی (c.464G.A, c.557G>C, c.635c>T, c.692C>T...
Knowing the role of MC1R in skin tanning can provide a brand new idea to resolve pigmentary disorders. α MSH has 13 amino acids and is the most essential pigmentary melanocortin responsible for melanin synthesis. One could utilize the compound library to find lead compounds by virtual screening from peptide database and traditional Chinese medicine (TCM) database@Taiwan. Computational simulatio...
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