amino acids

glycine

Gly, G, nonpolar
-H side chain

Alanine

Ala, A, nonpolar
small

Valine

Val, V, nonpolar

Methionine

Met, M, nonpolar
contains Sulfur

Tryptophan

Trp, W, nonpolar
Large (ring)

Leucine

Leu, L, nonpolar

Isoleucine

Ile, I, nonpolar

Cysteine

Cys, C, Polar
Contains Sulfur, makes disulfide bonds

Proline

Pro, P, nonpolar
side chain covalently attached to end terminus, turning AA 75 deg

Phenylalanine

Phe, F, nonpolar
Large aromatic ring

Aspartic Acid

Asp, D, acidic
negative

Glutamic Acid

Glu, E, acidic
negative

Lysine

Lys, K, basic,
positive

Arginine

Arg, R, basic
Positive

Histidine

His, H, basic
positive
large aromatic ring

Asparagine

Asn, N, polar

Glutamine

Gln, Q, polar

Serine

Ser, S, Polar
-OH group

Threonine

Thr, T, polar
-OH group

Tyrosine

Tyr, Y, polar
-OH group
large aromatic ring