Alpha globulins are a group of globular proteins in plasma that are highly mobile in alkaline or electrically charged solutions. They inhibit certain blood proteases and show significant inhibitor activity. The alpha globulins typically have molecular weights of around 93 kDa. Examples Alpha globulins include certain hormones, proteins that transport hormones, and other compounds, including prothrombin and HDL. Alpha 1 globulins α1-antitrypsin Alpha 1-antichymotrypsin Orosomucoid (acid glycoprotein) Serum amyloid A Alpha 1-lipoprotein Alpha 2 globulins Haptoglobin Alpha-2u globulin α2-macroglobulin Ceruloplasmin Thyroxine-binding globulin Alpha 2-antiplasmin Protein C Alpha 2-lipoprotein Angiotensinogen Cortisol binding globulin Vitamin D-binding protein References Blood proteins