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Protein Chemistry Lab
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  • Services
    • Amino Acid Analysis
      • Amino Acid Codes
      • AAA Assay Description
      • AAA Instrumentation
      • AAA Quantitation and Data Analysis
      • AAA Sample Preparation
      • AAA Sample Submission
    • Protein Sequence Analysis
      • Edman Experimental Procedure
    • Mass Spectrometry
      • Protein/Peptide Mass Determination
        • MS Mass Instrumentation
        • MS Mass Sample Preparation
        • Procedure for MALDI-TOF Analysis
        • Procedure for Electrospray Mass Analysis
        • Accuracy of the Analysis
      • Protein Identification-Proteomics
        • MS Protein ID Instrumentation
        • Sample Preparation and Purity
        • PMF/PSD
        • LC/MS/MS
        • Accuracy of the Analysis
        • In-gel Digestion of Proteins
    • Electrophoresis
      • SDS-Polyacrylamide Gel Electrophoresis
      • 2 Dimensional Gel Electrophoresis
      • DIGE
    • Chromatography
      • Chromatography Instrumentation
      • Normal Phases
      • Reversed Phase
  • Forms
    • Amino Acid Analysis
    • Protein Sequence Analysis
    • Protein/Pectide Mass Determination
    • Protein Identification/Proteomics
    • Electrophoresis
    • Chromatography
  • Staff
    • Gayan Nawaratna, Ph.D.
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MS Protein ID Instrumentation

Our laboratory has a Shimadzu/Kratos MALDI-TOF mass spectrometer equipped with delayed extraction and reflectron capabilities which is used for routine high mass accuracy analysis of peptides (<3 kDa).  The instrument can also be operated in linear mode for protein analysis (>3 kDa).
We also have a ThermoFinnegan DecaXP ion trap mass spectrometer that is used for LC/MS/MS applications.  This instrument is used for accurate mass determination and limited peptide sequencing.  It was installed in October 2001 and is used solely for peptide analysis and protein identification.  Clients who need small ion or nucleic acid mass spectrometric analysis are directed to the Laboratory for Biological Mass Spectrometry in the Department of Chemistry at Texas A&M University.
  • MS Protein ID Instrumentation
  • PMF/PSD
  • LC/MS/MS
  • Accuracy
  • Sample Preparation
  • Digestion
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