Covalent labeling of active sites.

Amino Acid Sequence Amino Acids Antibodies Binding Sites Carbon Isotopes Chymotrypsin Cysteine Haptens Histidine Isoflurophate Lysine Models, Chemical Phosphoglucomutase Proteins Trypsin Tryptophan Tyrosine

Amino Acids Antibodies Carbon Isotopes Haptens Proteins Isoflurophate Tyrosine Histidine Tryptophan Chymotrypsin Trypsin Phosphoglucomutase Lysine Cysteine