Novor Mass Calculator is a free tool that can calculate the mass of amino acid residues. What distinguish this tool from others is that it also computes possible amino acid combinations of a given mass value. It provides useful syntax so that you can easily mix residues, mass tags and charge to construct the input. Give it a try and let us know how you think.
| Input: | |
| Examples: | |
| Cys modi: | |
| Your input: | {{updatePeptide()}} |
| Residue mass: | {{result.resMass.toFixed(5)}} |
| Peptide mass: | {{result.pepMass.toFixed(5)}} |
| y-ion: | {{ result.y1.toFixed(5)}} (1+), {{ result.y2.toFixed(5)}} (2+), {{ result.y3.toFixed(5)}} (3+) |
| b-ion: | {{ result.b1.toFixed(5)}} (1+), {{ result.b2.toFixed(5)}} (2+), {{ result.b3.toFixed(5)}} (3+) |
Amino acid combinations within ±0.5 Da mass range (up to 400Da)
| Mass | Delta | Residue | ||
|---|---|---|---|---|
| {{ x.m.toFixed(5) }} | {{ roundMass(x.m, result.resMass) }} | {{ x.s }} |