Ready-to-use ELISA kits are available for the detection of 5-HT2a receptor, an alias of the protein, 5-hydroxytryptamine receptor 2A. The official gene symbol is HTR2A. The kits can detect several species variants of the protein, including: human and rat. The protein, with a mass of 52.6 kDa and length of 471 residues, is reported to be membrane-associated. It is a member of the G-protein coupled receptor 1 family and may be known by other names, including: 5-HT2A, serotonin 5-HT-2A receptor, 5-hydroxytryptamine (serotonin) receptor 2A G protein-coupled, and 5-HT2 receptor.