Search results for "Melanocyte-Stimulating Hormone"

showing 2 items of 12 documents

New Melanocortin 1 Receptor Binding Motif Based on the C-Terminal Sequence of ?-Melanocyte-Stimulating Hormone

2006

The C-terminal tripeptide of the alpha-melanocyte stimulating hormone (alpha-MSH11-13) possesses strong antiinflammatory activity without known cellular target. In order to better understand the structural requirements for function of such motif, we designed, synthesized and tested out Trp- and Tyr-containing analogues of the alpha-MSH11-13. Seven alpha-MSH11-13 analogues were synthesized and characterized for their binding to the melanocortin receptors recombinantly expressed in insect (Sf9) cells, infected with baculovirus carrying corresponding MC receptor DNA. We also tested these analogues on B16-F1 mouse melanoma cells endogenously expressing the MC1 receptor for binding and for abili…

medicine.medical_specialtyGrowth-hormone-releasing hormone receptorProtein ConformationAmino Acid MotifsMelanoma ExperimentalBiologyToxicologyBinding CompetitiveMiceThyrotropin-releasing hormone receptorInternal medicineChlorocebus aethiopsmedicineEnzyme-linked receptorAnimalsHumansACTH receptorMelanocyte-Stimulating HormonesReceptorPharmacologyGeneral MedicineMelanocortin 3 receptorCell biologyEndocrinologyCOS CellsEstrogen-related receptor gammaMelanocortinReceptor Melanocortin Type 1Basic <html_ent glyph="@amp;" ascii="&"/> Clinical Pharmacology <html_ent glyph="@amp;" ascii="&"/> Toxicology
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Pharmacological Characterization of Loss of Function Mutations of the Human Melanocortin 1 Receptor That Are Associated with Red Hair

2004

Variation in skin color is the major host risk factor for melanoma and other forms of skin cancer. Individuals with red hair show an increased ratio of phaeomelanin to eumelanin in both hair and skin. This ratio is regulated by the melanocortin (MC) 1 receptor. There are several common point mutations in the human MC1 receptor that are overrepresented in North European red-heads, and in individuals with pale skin. In order to determine the functional significance of these mutations, we expressed the Asp84Glu, Val92Met, Arg163Gln, and Asp294His variants of the human MC1 receptors in eukaryotic cells and determined their ability to bind alpha-melanocyte stimulating hormone (MSH) peptides and …

medicine.medical_specialtyMelanocyte-stimulating hormoneMolecular Sequence DataDermatologyBiologyKidneymedicine.disease_causeBiochemistrypolymorphismStructure-Activity RelationshipGPCRInternal medicineCyclic AMPmedicineHumansPoint MutationpigmentationAmino Acid SequencemelanocortinHair ColorReceptorMSHMolecular BiologyCells CulturedG protein-coupled receptorMutationintegumentary systemMelanomaPoint mutationCell Biologymedicine.diseaseProtein Structure TertiaryEndocrinologyalpha-MSHMelanocortinReceptor Melanocortin Type 1Melanocortin 1 receptorJournal of Investigative Dermatology
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