The H1R ELISA kits listed below are analytical tools for measuring concentrations of H1R in various samples. H1R is an alternative name for the human HRH1 gene, which encodes the protein, histamine receptor H1. It has been mentioned that H1R plays a role in chemical synaptic transmission and GPCR signaling pathways, among other functions. Structurally, the HRH1 protein is described to be 487 amino acid residues in length and 55.8 kilodaltons in mass. It is localized to the cell membrane of the cell. This protein is known to be phosphorylated and glycosylated. Other names for this target antigen include HH1R.