Western Governors University BIOCHEMISTRY C785 OA study guide

tify the 3 different types of side chains: non-polar/hydrophobic, polar, and charged? Non Polar:::: ( Hydrophobic)- water hating -Ch3 or C and H ( side) special case: Tryptophan is a hydrophobic nonpolar even tho is has a single N Polar:::: ( Hydrophilic): OH, NH, ( center). Just O! SH is a special polar called Cysteine ending in SH. Charged:::: + or – ( Ionic bond) can be polar. 3) What kind of bonds do each of the 3 different types of side chains make? answered above: The reason we care about what class an amino acid belongs: So, we know what kind of interactions it can form to stabilized a protein tertiary structure. Hydrophobic interact with hydrophobic- C H. Polar interact via Hydrogen bonds. + or – charge interact va Ionic bond -s-s Cysteine side chain can interact via Disulfide bond