Anti-SPC1 antibodies enable researchers to detect and measure the SPC1 antigen in biological samples. This target is a reported synonym of the SPCS1 gene, which encodes signal peptidase complex subunit 1. This protein is known to function in proteolysis, among other biological roles. The human version of SPC1 has a canonical amino acid length of 169 residues and a protein mass of 18.3 kilodaltons. It is reported to be localized in the ER of cells and widely expressed in many tissue types. SPC1 is a member of the SPCS1 protein family.