Stopped-flow fluorescence techniques have been used to observe the formation of the binary comples of E-NADPH. At pH 7.5 there is a protein conformational change after the formation of the binary complex. This conformational change can be detected by a decrease in the fluorescence intensity of the complex at 350 nm and by an increase in its fluorescence intensity at 450 nm.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1165389PMC
http://dx.doi.org/10.1042/bj1470181DOI Listing

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