Figure 1From: Combinatorial peptidomics: a generic approach for protein expression profilingSix amino acids which contain chemically reactive side chains: Sulfhydryl groups in Cysteines (A), Guanidinyl groups in Arginines (B), Phenolic groups in Tyrosines (C), Thioether groups in Methionines (D), Imidazolyl groups in Histidines (E) and Indolyl groups of Tryptophans (F).Back to article page