We describe a simple method for the determination of heme protein reduction potentials. We use the method to determine the reduction potentials for the PAS-A domains of the regulatory heme proteins human NPAS2 (Em=-115 mV ± 2 mV, pH 7.0) and human CLOCK (Em=-111 mV ± 2 mV, pH 7.0). We suggest that the method can be easily and routinely applied to the determination of reduction potentials across the family of heme proteins.
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| http://dx.doi.org/10.1016/j.febslet.2013.12.030 | DOI Listing |
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