SEARCH Articles Figures Tables Affinity tag Affinity tagging Chemical labeling isotope-coded affinity tags Isotope Tags Isotope-coded Isotope-coded affinity tag Isotope-coded affinity tag Isotope-coded affinity tag labeling Isotope-coded affinity tagging Isotope-coded affinity tagging (ICAT Isotope-coded affinity tagging technology Isotope-coded affinity-tag, ICAT Isotopic tagging Proteomics isotope-coded affinity tags used Quantitative proteomics isotope-coded affinity tags Tagging isotopes