Thyroxine Binding Globulin (TBG) is a serpin produced in the liver with high affinity for the thyroid hormones T3 and T4. TBG reversibly binds T3 and T4, enabling their circulation around the bloodstream.
Human Very Low Density Lipoprotein (VLDL). Single arc by IEP against antisera to whole human serum. Essentially free of other plasma lipoproteins as determined by electrophoresis using Fat Red 7B staining for lipids and Coomassie Blue for proteins. Composition: 88-95% lipid; 5-12% protein.