peptide fingerprint

Synonyms:
  • peptide mass fingerprint
  • protein fingerprint
German: Peptid-Fingerprint
Japanese: ペプチド・フィンガープリント法

Biochemistry. The characteristic positioning of the peptide fragments of a protein subjected to fingerprinting. The protein is split into peptides by digestion with a protease. The fragments are separated in one direction by electrophoresis and at right angles by chromatography. After staining, the peptide fragments are seen to be in characteristic locations. The absolute masses of the fragments can be accurately measured by mass spectrometry.

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