Table II

Methods used by participants in PRG2006 study

MethodaNumber
Gel-based (37.5%)
    1D Coomassie4
    2D Coomassie4
    2D silver-stain2
    1D fluorescence4
    2D fluorescence1
    2D DIGE3
    2D radioactivity1
MS/isotope (41.7%)
    ICPL4
    iTRAQ12
    16O/18O5
    O-Methylisourea1
MS/non-isotope (20.8%)
    Ion current10
    Spectral count1
  • a 2D radioactivity, 125I/131I; iTRAQ, isobaric tags for relative and absolute quantitation; ICPL, isotope-coded protein label.