Anti-CPX1 antibodies enable researchers to detect and measure the CPX1 antigen in biological samples. This target is a reported synonym of the CPLX1 gene, which encodes complexin 1. This protein is known to function in chemical synaptic transmission and exocytosis, among other biological roles. The human version of CPX1 has a canonical amino acid length of 134 residues and a protein mass of 15 kilodaltons. It is reported to be localized in the cytoplasm of cells and notably expressed in many tissues, such as the adrenal gland and cerebellum. CPX1 is a member of the Complexin/synaphin protein family.