Anti-HTR1E antibodies are used in the immunodetection of the protein 5-hydroxytryptamine receptor 1E. In humans, the canonical protein has a reported length of 365 amino acid residues and a mass of 41.7 kDa. Its subcellular localization is in the cell membrane. It is notably expressed in the brain. A member of the G-protein coupled receptor 1 protein family, HTR1E is known to be involved with chemical synaptic transmission and GPCR signaling pathways. Post-translational modifications have been described, including glycosylation. Synonyms for this target antigen include 5-HT-1E, 5-hydroxytryptamine (serotonin) receptor 1E, G protein-coupled, S31, serotonin receptor 1E, and 5-HT1E. HTR1E gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. ELISA, Western Blot, and Immunohistochemistry are common applications for HTR1E antibodies.