Amino Acids: 3 Letter code, 1 letter code, A/B, P/NP, charge

Alanine

Ala

A

nonpolar

Arginine

Arg

R

basic (+)

polar

ionizable side chain

Asparagine

Asn

N

polar

Aspartic Acid (Aspartate)

Asp

D

Acidic (-)

polar

ionizable side chain

Cysteine

Cys
C
polar

ionizable side chain

Glutamine

Gln

Q

polar

Glutamic Acid (glutamate)

Glu

E

acidic (-)

polar

ionizable side chain

Glycine

Gly

G

nonpolar

Histidine

His

H

basic (+1) or uncharged at neutral pH

polar
aromatic

ionizable side chain

Isoleucine

Ile

I

nonpolar

Leucine

Leu

L

nonpolar

Lysine

Lys

K

basic (+)

polar

ionizable side chain

Methionine

Met

M

nonpolar

Phenylalanine

Phe

F

nonpolar
aromatic

Proline

Pro

P

nonpolar

Serine

Ser

S

polar

Threonine

Thr

T

polar

Tryptophan

Trp

W

nonpolar

aromatic

Tyrosine

Tyr

Y

polar
aromatic

ionizable side chain

Valine

Val

V

nonpolar

hydrophic
cluster together inside of the protein

nonpolar

hydrophilic
neutral/uncharged at physiological pH of 7
can H-bond

polar

hydrophilic
negative charge (-) at pH 7
carboxylic acid group w/ resonance

acidic polar

positive charge (+) at pH 7

basic polar