Identification of chemical modification sites on metalloproteins by capillary electrophoresis

I. Jy Chang, Harry B. Gray, Michael Albin*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


Capillary electrophoresis (CE) has been used to separate the peptides obtained from tryptic digestion of ruthenium-modified cytochrome c. The modified peptide was identified from a comparison of the elution profile and absorbance characteristics of the native and modified proteins. Automatic fraction collection on the CE instrument provides sufficient amounts of this modified peptide for amino acid sequencing. Capillary electrophoresis has also been used to monitor the modification reaction and to optimize the modification efficiency. The methodologies have been extended to myoglobin in order to monitor the modification of multiple surface sites.

Original languageEnglish
Pages (from-to)24-27
Number of pages4
JournalAnalytical Biochemistry
Issue number1
Publication statusPublished - 1993
Externally publishedYes

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Molecular Biology
  • Cell Biology


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