Crystalline style proteins from bivalve molluscs

Abstract

1. 1. Proteins from crystalline styles of twelve species of bivalve mollusc were examined under different gel electrophoresis conditions and stained to reveal both protein and carbohydrate. 2. 2. Native extracts of styles produced relatively few protein bands, however denaturation with SDS resulted in much more complex zymograms. 3. 3. All species possessed several prominent high mol wt glycoproteins. 4. 4. Eulamellibranchia all had a major non-glycosylated protein at approx. 62,000 mol. wt. 5. 5. Most Filibranchia had a major non-glycosylated protein at 37,000–50,000 mol. wt. 6. 6. Eulamellibranchia were a much more homogeneous group than the Filibranchia.