In: Chemistry
Molecule |
ε260(M-1 cm-1) |
ε280(M-1cm-1) |
Protein 1 |
6219 |
11194 |
Protein 2 |
0 |
0 |
RNA A |
102415 |
51207 |
RNA B |
98623 |
49311 |
Protein 1 and RNA A are mixed in equimolar ratios and observed in a spectrophotometer with a 1 cm path length. The absorbance reading at 260 nm (A260) is 1.23. What would you anticipate A280 being for this sample?
3 mL of Protein 1 and 0.2 mL of RNA A were mixed to obtain the reading in Part A. What were the starting concentrations of Protein 1 and RNA A (in μM).
Starting concentration of protein 1 = 3770 micromolar.
Starting concentration of RNA A = 56500 micromolar.