Figure 4.
HPLC chromatograms of SgcC3 assays showing authentic (S)- β-tyrosine (4) standard (I), incubation of (S)- β-tyrosyl-S-SgcC2 (6) with SgcC3 at 37°C for 15 min (II), 30 min (III), 60 min (IV), and synthetic 3-choro-β-tyrosine (V). (●), 4 and (◆), 13 or 3-choro-β-tyrosine.