[Term] id: PR:000001098 name: 5-hydroxytryptamine receptor 1 def: "A 5-hydroxytryptamine receptor that is a translation product of the human HTR1A, HTR1B, HTR1D, HTR1E or HTR1F genes, 1:1 orthologs thereof, or a semi-ortholog thereof. The preferred ligand is 5-hydroxytryptamine (serotonin)." [PRO:DAN, PRO:WCB] comment: Category=family. xref: PIRSF:PIRSF005474 is_a: PR:000044625 ! 5-hydroxytryptamine receptor