Table 1. Amino Acids Modified with Hydroxyl Radicals during the FPOP Experiment.

	position
residue	Hpα	Hpβ
Cys	111	266, 340
Trp		175, 284, 398
Tyr	114, 125	272, 280, 386
Met		263, 300
Phe		173, 205, 290, 292, 339
His		166, 208, 295
Arg		261
Ile		233
Leu	127	167, 206, 221, 230, 296
Val	124	231, 275, 278
Pro		219, 268, 302
Thr		293, 338
Ser		282
Lys		170, 178, 228, 235, 270, 291
Asp	122	397