AMINO ACIDS

• glycine (Gly) (G)

• Alanine (Ala) (A)

• Valine (Val) (V)

• Leucine (Leu) (L)

• Isoleucine (Ile) (L)

• Proline (Pro) (P)

• Non-polar and aliphatic R groups

  • These are amino acids that have side chains which are hydrophobic and do not interact favorably with water.

• Phenylalanine (Phe) (F)

• Tryptophan (Trp) (W)

• Tyrosine (Tyr) (Y)

Non-polar and aromatic R groups

• Methionine (Met) (M)

• Cystiene (Cys) (C)

Sulfur-containing R groups

• Amino acids that contain sulfur in their side chains, which can form disulfide bonds.

• Threonine (Thr) (T)

• Asparagine (Asn) (N)

• Glutamine (Gln) (Q)

• Serine (Ser) (S)

Polar and uncharged R groups

• Amino acids that have side chains containing polar functional groups, which can form hydrogen bonds with water.

• Glutamic Acid/ Glutamate (Glu) (E)

• Aspartic acid / Aspartate (Asp) (D)

Charged R groups (ACIDIC)

• Lysine (Lys) (K)

• Arginine (Arg) (R)

• Histidine (His) (H)

Charge R groups (Basic)

Ala

A

Alanine

Arg

R

Arginine

Asn

N

Asparagine

Cys

C

Cysteine

Glu

E

Glutamic acid

Gln

Q

Glutamine

Gly

G

Glycine

His

H

Histidine

Ile

I

Isoleucine

Leu

L

Leucine

Lys

K

Lysine

Met

M

Methionine

Phe

F

Phenylalanine

Pro

P

Proline

Ser

S

Serine

Thr

T

Threonine

Trp

W

Tryptophan

Tyr

Y

Tyrosine

Val

V

Valine