For 10 points, identify this process where N-terminal amino acids are removed from a peptide chain, a method of protein sequencing named for a Swedish chemist.
One impediment encountered in this procedure can be overcome with the use of compounds such as dansyl chloride, while an earlier technique developed by Max Bergmann overcomes that impediment by benzoylating the sample. D.H. Williams combined this technique with fast atomic bombardment to create the "subtractive" type of it, and G.S. Begg and its namesake used humpback whale myoglobin as a reagent in the first (*) automated method of performing this reaction. The second step of this reaction is performed with anhydrous trifluoroacetic acid as the cleaving agent. Its first step uses a phenylisothiocyanate and it eventually creates a phenylthiohydantoin derivative that can be identified by electrophoresis, though other methods must be used to find disulfide bridges. For 10 points, identify this process where N-terminal amino acids are removed from a peptide chain, a method of protein sequencing named for a Swedish chemist.
One impediment encountered in this procedure can be overcome with the use of compounds such as dansyl chloride, while an earlier technique developed by Max Bergmann overcomes that impediment by benzoylating the sample.
{Edman degradation}