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dosorio / Peptides

An R package to calculate indices and theoretical physicochemical properties of peptides and protein sequences.
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Average ion mass #36

Closed Stortebecker closed 3 years ago

Stortebecker commented 4 years ago

Dear Peptides Team,

I recognized that there is some controversy about the average mass of amino acid masses in different online sources.

While your package is currently using masses as given by Expasy, which are the same as given in Wikipedia.

However, other average masses are reported by the UWPR. The same average masses are reported by Mascot.

Does anyone know where these differences come from or where to find a definite source for the masses? @dosorio proposed "adding all the possible scales as arguments of the mw function would be the best."