Determine the subunit composition of this protein from the following information: 10 points Molecular mass of the native proteinby gel filtration is 300 kD Molecular mass by SDS-PAGE is 100 kD Molecular mass by SDS-PAGE with 2-mercaptoethanol is 50 kD, 30 kD, and 20 kD Give your answer in the following format (2 kD2 - 3 kD2 - 4 kD2)6