BISC 221 - Lecture 3 (Amino Acids and Properties) - Midterm 1

Glycine

nonpolar side chain, hydrophobic (hint - polar bears don’t like sugar) G

Alanine

nonpolar side chain, hydrophobic (hint - ala always doesn’t like water) A

Valine

nonpolar side chain, hydrophobic (hint - vaseline repels water) V

Leucine

nonpolar side chain, hydrophobic (hint - lucy hates water) L

Isoleucine

nonpolar side chain, hydrophobic (hint - lucy hates water) I

Methionine

Amphipathic, M

Proline

nonpolar side chain, hydrophobic (hint - opposite of pro polar), P

Phenylalanine

nonpolar side chain, hydrophobic (hint - phe equals no sea (water)), F

Tryptophan

amphipathic, W

Serine

polar side chain, hydrophilic (hint - polar bears are very serine), S

Threonine

polar side chain, hydrophilic (hint - polar bears like trees), T

Asparagine

polar side chain, hydrophilic (hint - polar bears like asparagus), N

Glutamine

polar side chain, hydrophilic (hint - polar bears have glutes), Q

Tyrosine

amphitatic, Y, 10.1

Cysteine

polar side chain, hydrophilic (hint - polar bears have sisters) C, 8.3

Aspartic acid

negatively charged side chain, hydrophilic (hint - acids are mean and negative) D, 3.86

Glutamic acid

negatively charged side chain, hydrophilic (hint - acids are mean and negative), E, 4.25

Lysine

positively charged side chain, amphipathic (hint - lucy can also be emphatetic), K, 10.5

Arginine

positively charged side chain, hydrophilic (positive pirates), R, 12.5

Histidine

positively charged side chain, hydrophilic (hint - history can be positive), H, 6