BIOL 2100 Lecture Notes - Lecture 3: Alpha And Beta Carbon, Hydrogen Atom, Hydrophile
9 May 2016
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Document Summary
All proteins are polymers of amino acids. Amino acids: general structure of amino acid. Some side chain that makes amino acid unique: that is not the form we see in an aqueous solution. We see an ionized form they act as bases. Carboxyl groups are acting as acids and donating protons, electrons are left behind (negative charge at other end) Concentration of protons would increase in solution at a lower ph more acidic. Overall charge would be more positive: some of the amino acids have similar side chain groups not just at the end of the polypeptide where things change, how amino acids interact with water. Structure of amino acids at the end of the spectrum you should know if its hydrophobic or hydrophilic. Charged and polar side chains are hydrophilic if you see a + or . If there are no signs you look at structure look for highly electronegative atoms (oxygen/nitrogen) they are polar.
