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. Author manuscript; available in PMC: 2019 Dec 7.
Published in final edited form as: Biochemistry. 1993 Aug 10;32(31):7981–7993. doi: 10.1021/bi00082a020

FIGURE 4:

FIGURE 4:

Multiexponential lifetime fits to the donor frequency response data for ZF28 and DNS-ZF28. In each case, donor-alone peptide data are the open circles (○) and D–A peptide data are the filled circles (●). Panel A: zinc-bound peptide. Panel B: metal-free peptide. Panel C: peptide plus 5 M GuHCl. Donor lifetime parameters are reported in Table I.