mchr2

Melanin Concentrating Hormone, salmon acetate (MCH (salmon)) is a 19 amino acid cyclic peptide, is largely expressed in the hypothalamus.

Melanin Concentrating Hormone, salmon TFA (MCH (salmon) TFA), is a 19-amino-acid neuropeptide discovered in the pituitary gland of teleost fish; it regulates food intake, energy balance, sleep states, and cardiovascular functions, and acts as a ligand for the orphan G protein-coupled receptors SLC-1 GPR24 and MCHR2.

[Ala17]-MCH TFA, a selective ligand for MCHR 1 (K i =0.16 nM) over MCHR 2 (K i =34 nM), is an analogue of MCH. When labeled with a [Eu 3+ chelate], [Ala17]-MCH exhibits high affinity for MCHR 1 (K d =0.37 nM) and negligible binding affinity for MCHR 2.

[Ala17]-MCH acetate is a selective ligand for MCHR1 with a Ki of 0.16 nM and Kd of 0.37 nM(Eu3+ chelate-labeled). [Ala17]-MCH acetate shows selectivity over MCHR2 with Ki of 34 nM.