Proteins

Question 0

List the aliphatic aa and their properties.

Answer 0

Glycine (G), Alanine (A), Valine (V), Leucine (L), Isoleucine (I)
Their R-groups are non-polar and hydrophobic

Question 1

What are the different types of amino acids (aa) according to their properties?

Answer 1

Aliphatic
Aromatic
Sulfur-containing
Acidic
Basic
Cyclic

Question 2

List the aromatic aa and their properties.

Answer 2

Tyrosine (Y), Tryptophan (W), Phenylalanine (F)
Relatively non-polar
All absorb UV light, esp tryptophan (280nm)
Tyrosine is the only one that has an ionizable side chain, and is one of 3 hydroxyl containing aa