PCSK9 and coronary artery disorder: Additionally, 22 of the identified proteins were associated with CAD or HC pathways, with nine proteins being common to both conditions (APO E, APO E3, MMP-3, PCSK9, SDF-1, APO B, PAFAH, 60 kDa heat shock protein, and TGF-beta-activated kinase 1 and MAP3K7-binding protein 1 fusion).