MC1 Receptor (MC1R) Rabbit Polyclonal Antibody

CAT#: TA328624

Rabbit Polyclonal Anti-Melanocortin Receptor 1


USD 585.00

3 Weeks*

Size
    • 200 ul

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Specifications

Product Data
Applications IF, IHC, WB
Recommended Dilution WB: 1:200-1:2000; IHC: 1:100-1:3000
Reactivities Human, Rat
Host Rabbit
Clonality Polyclonal
Immunogen Peptide (C)HAQGIARLHKRQRPVH, corresponding to amino acid residues 217-232 of human MC1R. 3rd intracellular loop.
Formulation Lyophilized. Concentration before lyophilization ~0.8mg/ml (lot dependent, please refer to CoA along with shipment for actual concentration). Buffer before lyophilization: Phosphate buffered saline (PBS), pH 7.4, 1 % BSA, 0.025% NaN3.
Purification Affinity purified on immobilized antigen.
Conjugation Unconjugated
Storage Store at -20°C as received.
Stability Stable for 12 months from date of receipt.
Gene Name melanocortin 1 receptor
Background Melanocortin Receptor 1 (MC1R) belongs to a five-member receptor family known as the melanocortin receptors. The melanocortin receptors are members of the 7-transmembrane domain, G protein-coupled receptor (GPCR) superfamily. The receptors ligands, the melanocortins, are a group of structurally derived peptides consisting of a-, Ã?- and ?-melanocyte stimulating hormone (a, Ã?, ?-MSH) and the adrenocorticotropic hormone (ACTH) all of which are derived from the post-translational processing of a common precursor peptide, proopiomelanocortin (POMC). One of the most salient features of the melanocortin signaling system is the presence of two endogenous antagonists, that is proteins that bind specifically to the receptor but instead of activating it have an inhibitory effect. The antagonist proteins are termed agouti (or agouti signaling protein, ASP) and agouti-related protein (AGRP). All five melanocortin receptors bind their agonists (the melanocortins) and their endogenous antagonists (agouti and AGRP) with different affinities. MC1R was the first member of the melanocortin receptor family to be cloned. The receptor transduces signals via Gs resulting in the activation of adenylate cyclase and production of cAMP. MC1R binds its ligands with the following potency: a-MSH = ACTH > Ã?-MSH > ?-MSH. MC1R also binds the endogenous antagonist agouti with high affinity. MC1R can be described as the â??classicalâ? melanocyte a-MSH receptor. The receptor is expressed in the skin where it has a key role in determining skin and hair pigmentation. In fur-bearing mammals, the local ratio between a-MSH and agouti will determine coat pigmentation as a-MSH stimulates and agouti inhibits melanin production. In humans, especially in Caucasians, the MC1R gene is highly polymorphic and several allelic variants have been correlated with red-hair, poor tanning ability and increased risk of melanoma. In addition, MC1R expression in melanoma has been shown to be upregulated up to 20-fold when compared to normal melanocytes. The melanocortins and particularly a-MSH have significant anti-inflammatory properties. Since a-MSH binds to MC1R with the highest potency, it was proposed that the latter mediated the anti-inflammatory effects of a-MSH. Indeed, MC1R expression has been demonstrated in several cells of the immune system including macrophages and neutrophils.
Synonyms CMM5; MSH-R; SHEP2
Reference Data
Protein Families Druggable Genome, GPCR, Transmembrane
Protein Pathways Melanogenesis, Neuroactive ligand-receptor interaction

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