PR:000001496 hydroxycarboxylic acid receptor protein fam:HCA_R|nicotinic acid receptor has_part Pfam:PF00001 7 transmembrane receptor (rhodopsin family) PIRSF:PIRSF038604 ISS PIRSF:PIRSF038604 PIRSF:PIRSF038604 20090326 PRO:CNA