Anti-PTH1 antibodies enable researchers to detect and measure the PTH1 antigen in biological samples. This target is a reported synonym of the PTH gene, which encodes parathyroid hormone. This protein is known to function in GPCR signaling pathways and cell to cell signaling, among other biological roles. The human version of PTH1 has a canonical amino acid length of 115 residues and a protein mass of 12.9 kilodaltons. It is reported to be a secreted protein that is notably expressed in the parathyroid gland. PTH1 is a member of the Parathyroid hormone protein family.