You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is All of the following are polar amino acids, EXCEPT: and explain in detail?
Nonpolar amino acids (eg, Leu, Ile) migrate the fahest as they spend the greatest propoion of their time in the mobile phase in chromatography. Polar amino acids (eg, Glu, Lys) travel the least distance from the origin as they spend a high propoion of their time in the stationary phase. Ref: Kennelly P.J., Rodwell V.W. (2011). Chapter 3. Amino Acids & Peptides. In D.A. Bender, K.M. Botham, P.A. Weil, P.J. Kennelly, R.K. Murray, V.W. Rodwell (Eds), Harper's Illustrated Biochemistry, 29e.