Peptide mass fingerprinting (PMF) is a technique used in proteomics for the identification of proteins based on the mass-to-charge ratios of peptide fragments. The primary steps involved in peptide mass fingerprinting are as follows: 1. **Protein Isolation and Digestion**: Proteins of interest are isolated from biological samples (such as cells or tissues) and then enzymatically digested, usually with trypsin, which cleaves proteins into smaller peptides at specific amino acid residues.
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