a. Approximately how many amino acids are present in a 400 kDa protein. (show work) b. How many grams would there be in a nanomole of this protein? (show work) What is the purpose of adding DTT? d. How many subunits does the protein have, and what are their molecular weights?

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Q: Mr standards without with (kDa) 2-МЕ 2-МЕ 200 100 90 75 50 25 20 15 | | |I| | |||

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