31. The replacement of a hydroxyl group by hydrogen ( A-OH ? 32. L-DOPA is a tyrosine residue that bears an additional hydroxyl group. 33. Specifically, the phenolic hydroxyl group interacts with the amino acid binding site. 34. The peptide is represented by a serine residue with a reactive hydroxyl group. 35. Typical equations showing persulfate generation of hydroxyl radicals follows. 36. Fatty acids with hydroxyl groups on their hydrophobic tails are rare in nature. 37. Upon addition of the hydroxyl radical, many stable products can be formed. 38. The fourth generation product prepared in a stepwise fashion contains 48 terminal hydroxyl groups 39. "It's monohydric and oxidized hydroxyl , " he whispered. 40. This reacts further to give hydroperoxides, which break up to give hydroxyl radicals.
