Table 3.2: S values and molecular weights of sample proteins

Protein

S value (Svedberg units)

Molecular weight

Pancreatic trypsin inhibitor

1     

  6,520

Cytochrome c

1.83

12,310

Ribonuclease A

1.78

13,690

Myoglobin

1.97

17,800

Trypsin

2.5  

23,200

Carbonic anhydrase

3.23

28,800

Concanavalin A

3.8  

51,260

Malate dehydrogenase

5.76

74,900

Lactate dehydrogenase

7.54

146,200  

Source: T. Creighton, Proteins, 2d ed. (W. H. Freeman and Company, 1993), Table 7.1.