Amino Acids

[jmu29]

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I know all of the amino acids, structures, 3 letter and 1 letter abbreviations, and their functions very well. My question is what amino acids are hydrophilic? I know it sounds like a stupid question but according to a chart from my biochem class the hydrophilic amino acids are QNSYTC, however, when I look this up online, oddly, almost every website lists different amino acids. So my question is what amino acids are hydrophilic at physiological pH?

 

[jmu29]

Obviously plus the charged amino acids so my understanding is all hydrophilic amino acids are QNSYTCEDHKR

 

[JimKimSlim]

In my case, I memorized that hydrophilic amino acids are those that have charges or polar groups at physiological pH. Also, on the MCAT, it will be very obvious to identify hydrophilic amino acids from hydrophobic ones.