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The amino acid mass tables include the name, 3-letter code, 1-letter code, monoisotopic mass, average mass and the composition of the amino acids.
[sorted by name] [sorted by mass]
Table 1. Amino acid residues sorted by name.
|
Name
|
3-letter code
|
1-letter code
|
Monoisotopic Mass
|
Average Mass
|
Composition
|
|
Alanine
|
Ala
|
A
|
71.03711
|
71.08
|
C3H5NO
|
|
Arginine
|
Arg
|
R
|
156.10111
|
156.2
|
C6H12N4O
|
|
Asparagine
|
Asn
|
N
|
114.04293
|
114.1
|
C4H6N2O2
|
|
Aspartic Acid
|
Asp
|
D
|
115.02694
|
115.1
|
C4H5NO3
|
|
Cysteine
|
Cys
|
C
|
103.00919
|
103.1
|
C3H5NOS
|
|
Glutamic Acid
|
Glu
|
E
|
129.04259
|
129.1
|
C5H7NO3
|
|
Glutamine
|
Gln
|
Q
|
128.05858
|
128.1
|
C5H8N2O2
|
|
Glycine
|
Gly
|
G
|
57.02146
|
57.05
|
C2H3NO
|
|
Histidine
|
His
|
H
|
137.05891
|
137.1
|
C6H7N3O
|
|
Isoleucine
|
Ile
|
I
|
113.08406
|
113.2
|
C6H11NO
|
|
Leucine
|
Leu
|
L
|
113.08406
|
113.2
|
C6H11NO
|
|
Lysine
|
Lys
|
K
|
128.09496
|
128.2
|
C6H12N2O
|
|
Methionine
|
Met
|
M
|
131.04049
|
131.2
|
C5H9NOS
|
|
Phenyalanine
|
Phe
|
F
|
147.06841
|
147.2
|
C9H9NO
|
|
Proline
|
Pro
|
P
|
97.05276
|
97.12
|
C5H7NO
|
|
Serine
|
Ser
|
S
|
87.03203
|
87.08
|
C3H5NO2
|
|
Threonine
|
Thr
|
T
|
101.04768
|
101.1
|
C4H7NO2
|
|
Tryptophan
|
Trp
|
W
|
186.07931
|
186.2
|
C11H10N2O
|
|
Tyrosine
|
Tyr
|
Y
|
163.06333
|
163.2
|
C9H9NO2
|
|
Valine
|
Val
|
V
|
99.06841
|
99.13
|
C5H9NO
|
Table 2. Amino acid residues sorted by mass.
|
Name
|
3-letter code
|
1-letter code
|
Monoisotopic Mass
|
Average Mass
|
Composition
|
|
Glycine
|
Gly
|
G
|
57.02146
|
57.05
|
C2H3NO
|
|
Alanine
|
Ala
|
A
|
71.03711
|
71.08
|
C3H5NO
|
|
Serine
|
Ser
|
S
|
87.03203
|
87.08
|
C3H5NO2
|
|
Proline
|
Pro
|
P
|
97.05276
|
97.12
|
C5H7NO
|
|
Valine
|
Val
|
V
|
99.06841
|
99.13
|
C5H9NO
|
|
Threonine
|
Thr
|
T
|
101.04768
|
101.1
|
C4H7NO2
|
|
Cysteine
|
Cys
|
C
|
103.00919
|
103.1
|
C3H5NOS
|
|
Isoleucine
|
Ile
|
I
|
113.08406
|
113.2
|
C6H11NO
|
|
Leucine
|
Leu
|
L
|
113.08406
|
113.2
|
C6H11NO
|
|
Asparagine
|
Asn
|
N
|
114.04293
|
114.1
|
C4H6N2O2
|
|
Aspartic Acid
|
Asp
|
D
|
115.02694
|
115.1
|
C4H5NO3
|
|
Glutamine
|
Gln
|
Q
|
128.05858
|
128.1
|
C5H8N2O2
|
|
Lysine
|
Lys
|
K
|
128.09496
|
128.2
|
C6H12N2O
|
|
Glutamic Acid
|
Glu
|
E
|
129.04259
|
129.1
|
C5H7NO3
|
|
Methionine
|
Met
|
M
|
131.04049
|
131.2
|
C5H9NOS
|
|
Histidine
|
His
|
H
|
137.05891
|
137.1
|
C6H7N3O
|
|
Phenyalanine
|
Phe
|
F
|
147.06841
|
147.2
|
C9H9NO
|
|
Arginine
|
Arg
|
R
|
156.10111
|
156.2
|
C6H12N4O
|
|
Tyrosine
|
Tyr
|
Y
|
163.06333
|
163.2
|
C9H9NO2
|
|
Tryptophan
|
Trp
|
W
|
186.07931
|
186.2
|
C11H10N2O
|
|
© 2012 BSI