label: Anti-PM-Scl antibody positivity
label_lc: anti-pm-scl antibody positivity
description: "Anti-PM-Scl antibodies target components of RNA-processing exosome complex in the nucleolus. There are ten proteins in this complex and antibodies to eight of them are found at varying frequencies; PM/Scl-100, PM/Scl-75, hRrp4, hRrp42, hRrp46, hCs14, hRrp41, and hRrp40."