Nonpolar Amino Acids
(hydrophobic)
amino
acid |
three
letter code |
single
letter code |
glycine |
Gly |
G |
alanine |
Ala |
A |
valine |
Val |
V |
leucine |
Leu |
L |
isoleucine |
Ile |
I |
methionine |
Met |
M |
phenylalanine |
Phe |
F |
tryptophan |
Trp |
W |
proline |
Pro |
P |
Polar (hydrophilic)
amino
acid |
three
letter code |
single
letter code |
serine |
Ser |
S |
threonine |
Thr |
T |
cysteine |
Cys |
C |
tyrosine |
Tyr |
Y |
asparagine |
Asn |
N |
glutamine |
Gln |
Q |
Electrically
Charged (negative and hydrophilic)
amino
acid |
three
letter code |
single
letter code |
aspartic
acid |
Asp |
D |
glutamic
acid |
Glu |
E |
Electrically
Charged (positive and hydrophilic)
amino
acid |
three
letter code |
single
letter code |
lysine |
Lys |
K |
arginine |
Arg |
R |
histidine |
His |
H |
Yellow
amino acids contain sulfur.
Blue amino acids can be phosphorylated.
glycine
|
alanine
|
valine
|
leucine
|
|
|
|
|
isoleucine
|
methionine
|
phenylalanine
|
tryptophan
|
proline
|
|
|
|
|
|
serine
|
threonine
|
cysteine
|
|
|
|
tyrosine
|
asparagine
|
glutamine
|
|
|
|
aspartic
acid
|
glutamic
acid
|
|
|
lysine
|
arginine
|
histidine
|
|
|
|
|