Myelin basic protein binds heme at a specific site near the tryptophan residue.


Fluorescence of the single tryptophan residue in myelin basic protein (MBP) was excited directly at 295 nm (red-edge excitation) or at 278 nm which allows, in addition, indirect excitation by resonance energy transfer (RET) from any nearby tyrosine residues. Both red-edge excitation and the RET pathway were collisionally quenched by I- and acrylamide, but… (More)


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