2782740 GIPR glucose-dependent insulinotropic polypeptide receptor 159 2782728 GIPR GIP receptor 136 2782733 GIPR gastric inhibitory polypeptide receptor 35 2782743 GIP-R glucose-dependent insulinotropic peptide receptor 3 2782741 GIP-R gastric inhibitory peptide receptor 1 2782742 GIP-R glucose-dependent insulinotropic polypeptide 1