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edman degradation

^ http://purl.obolibrary.org/obo/MI_0039


In this procedure the N-terminus amino acid is cleaved from a polypeptide and identified by high-pressure liquid chromatography. The cycle is repeated on the ever-shortening polypeptide until all the residues are identified. On average only 20-30 consecutive cycles can be performed and lead to amino acid identification. Longer polypeptides or full length proteins must be cleaved by specific protease before Edman degradation and their sequences built by fragment overlapping. [ PMID:14755292 ]

Term info

Subsets

PSI-MI_slim

definition

In this procedure the N-terminus amino acid is cleaved from a polypeptide and identified by high-pressure liquid chromatography. The cycle is repeated on the ever-shortening polypeptide until all the residues are identified. On average only 20-30 consecutive cycles can be performed and lead to amino acid identification. Longer polypeptides or full length proteins must be cleaved by specific protease before Edman degradation and their sequences built by fragment overlapping.

id

MI:0039

Term relations