Patient Test Information

Protein Groups

Protein Groups

Major plasma proteins and their functions listed according to their electrophoretic group
group protein function
Albumin Albumin Main plasma protein; reduces tissue water accumulation, transports many substances
Alpha1-globulin Alpha1-Antitrypsin Inactivates trypsin and other proteolytic enzymes, reduces damage from inflammation
Orosomucoid (Alpha-1-acidic glycoprotein) Immune response modifier, binds acidic drugs such as lidocaine
High Density Lipoprotein (HDL) Reverse transport of cholesterol ("good cholesterol")
Alpha2-globulin Alpha2-Macroglobulin Binds to and inactivates enzymes, preventing tissue damage
Haptoglobin Hemoglobin-binding protein
Ceruloplasmin Copper-containing enzyme, involved in normal iron metabolism
Beta-globulin Transferrin Iron transport and delivery to cells
Low Density Lipoprotein (LDL) Cholesterol delivery to tissue
Complement component 3 Helps regulate inflammatory response to foreign substances
Gamma-globulin    IgA Immunoglobulin involved in secretions
IgG Major immunoglobulin; long term immunity
IgM Initial response immunoglobulin
C-reactive protein Inflammatory response mediator
Fibrinogen Coagulation factor (found only in plasma, not serum)