γ-2-MSH (41-58), amide - CAS 799841-81-9

Melanocortin (MC) 3-MSH (Melanocyte-Stimulating Hormone) is believed to signal through the MC 3 receptor. It induces a sustained increase in intracellular free calcium levels ([Ca2+]i) in a subpopulation of pituitary cells. Most of the cells responding to 3-MSH express more than one pituitary hormone mRNA. The effect of 3-MSH is blocked by SHU9119, a MC3R and MC4R antagonist, in only 50% of the responsive cells, suggesting that in half of these cells the mediating receptor is not the MC3R. Low picomolar doses of 3-MSH increase [Ca2+]i in the growth hormone (GH) - and prolactin (PRL) -secreting GH3 cell line.

Melanocortin Receptor

GPCR/G Protein, Neuroscience

799751

C74H100N22O15S

1569.79

C([C@H](NC([C@@H](NC([C@H](CC1=CC=CC=C1)NC([C@H](CC2=CN=CN2)NC(CNC([C@@H](NC([C@@H](NC([C@H](CC3=CC=C(O)C=C3)N)=O)C(C)C)=O)CCSC)=O)=O)=O)=O)CCCNC(=N)N)=O)C(N[C@H](C(N[C@H](C(N[C@@H](CC4=CC=CC=C4)C(NCC(N)=O)=O)=O)CCCNC(=N)N)=O)CC(O)=O)=O)C=5C=6C(NC5)=CC=CC6

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