Chicken NPY receptors (Y2, Y5, Y7) contain novel non-coding exon(s) at their 5′UTR.
Y2, Y5 and Y7 are widely expressed in chicken tissues including the hypothalamus.
Y2, Y5 and Y7 expression is driven by their promoter(s) near or upstream exon 1.
cY2, cY5 and cY7 are preferentially activated by cNPY and cPYY, not by cPP.
The functional receptors for NPY, PYY and PP peptides are proposed in chickens.