Abstract
In the present study, two types of thyroglobulin-related proteins were solubilized from hog thyroid microsomes by sonication or detergent treatment and separated by polyacrylamide gel electrophoresis. The faster migrating protein had the same electophoretic mobility as that of soluble thyroglobulin.
These two proteins had the same immunogenicity as that of soluble thyroglobulin and lower iodine contents than the latter, suggesting a relationship between the proteins and newly synthesized molecules of thyroglobulin.