Fig. 4. (a) EPR spectrum of the heme–Aβ(1–16, Arg5Asn) complex on reaction with m-CPBA (mixing time 5 s), at 5 K, green, and (b) the heme–Aβ(1–16, Tyr10Phe) complex on reaction with m-CPBA (mixing time 10 s), at 11 K, red. (c) Temperature dependent EPR spectra of the heme–Aβ(1–16, Tyr10Phe) complex on reaction with m-CPBA (mixing time 10 s), at 11 K, red; at 13 K, purple, and at 77 K, blue; in 50 mM PO43– buffer at pH 8.
