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How to estimate number of amino acid residues in protein if molecular weight is given?

By Sahil Gupta

How to estimate number of amino acid residues in protein if molecular weight is given?

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2 comments

  1. Suppose the molecular weight of the protein is X daltons. Hydrogen atom weighs 1 Da, a Carbon weighs 12, an Oxygen 16, and so on.

    By this each single naturally occurring amino acid has approximately 5 to 15 C/N/O atoms and weighs from 70 – 160 Daltons. Lets assume about Y Da per amino acid. Therefore, X Da protein has about X/Y = n amino acids

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