Peptide Mass Calculator
It is often important to know the molecular weight of a peptide or protein sequence. This program will take a protein sequence and calculate the molecular weight. The program will ignore numbers, spaces or characters like U or X which do not correspond to one of the amino acids from the table below.
|
| Amino Acid |
3-Letter Code |
1-Letter Code |
| Alanine |
Ala |
A |
| Cysteine |
Cys |
C |
| Aspartate |
Asp |
D |
| Glutamate |
Glu |
E |
| Phenylalanine |
Phe |
F |
| Glycine |
Gly |
G |
| Histidine |
His |
H |
| Isoleucine |
Ile |
I |
| Lysine |
Lys |
K |
| Lysine |
Lys |
K |
| Leucine |
Leu |
L |
| Methionine |
Met |
M |
|
| Amino Acid |
3-Letter Code |
1-Letter Code |
| Asparagine |
Asn |
N |
| Proline |
Pro |
P |
| Glutamine |
Gln |
Q |
| Arginine |
Arg |
R |
| Serine |
Ser |
S |
| Threonine |
The |
T |
| Valine |
Val |
V |
| Tryptophan |
Trp |
W |
| Tyrosine |
Tyr |
Y |
| Asaragine |
Asx |
B |
| Glutamine |
Glx |
Z |
|
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