Anti-C1orf63 antibodies enable researchers to detect and measure the C1orf63 antigen in biological samples. This target is a reported synonym of the RSRP1 gene, which encodes arginine and serine rich protein 1. This protein is suspected to be acts as a spliceosomal factor that contributes to spliceosome assembly and regulates the isoform switching of proteins such as PARP6. The human version of C1orf63 has a canonical amino acid length of 290 residues and a protein mass of 33.6 kilodaltons, although 3 isoforms have been identified. It is reported to be localized in the nucleus of cells. C1orf63 is a member of the RSRP protein family.