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Two principal methods dominate protein sequencing historically:
Edman Degradation, developed in the 1950s, was the pioneering technique for protein sequencing. It works by sequentially removing amino acids one at a time from the peptide chain while leaving the other amino acid bonds intact. Its drawbacks include slow speed and the need for substantial sample quantities.
Mass Spectrometry has gained popularity due to technological advancements, offering higher throughput and sensitivity while requiring less sample material. However, piecing together the complete protein sequence from mass spectra remains a challenging task. |