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. Author manuscript; available in PMC: 2010 May 27.
Published in final edited form as: J Am Chem Soc. 2009 May 27;131(20):6938–6939. doi: 10.1021/ja902131d

Fig 3.

Fig 3

Titration of ZnMb(+6) with Fe3+ cyt b5. Left. Triplet decay traces as a function of [Fe3+ cyt b5] (:M). Conditions: 5 µM ZnMb; 5 mM KPi, pH 6; 20°C; 475 nm. Right. Zero-time absorbance decrease for cyt b5 binding to Mb(+6) and fit to eq 1: Ka = 2.2 × 105 M−1; *)A0max = 0.042. Inset: Rate constants from fitting triplet decays to bi-exponential.