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Principles of Fluorescence Spectroscopy

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574 PROTEIN FLUORESCENCE<br />

Figure 16.74. Emission spectra <strong>of</strong> cellular retinoic acid binding protein I (CRABPI) for various excitation wavelengths. Revised from [160].<br />

P16.5. Quenching <strong>of</strong> LADH and Its Mutants: Liver alcohol<br />

dehydrogenase (LADH) contains two tryptophan<br />

residues at positions 15 and 314. Table 16.2 lists<br />

steady-state intensity quenching data for wild-type<br />

LADH and the mutant W314L containing only<br />

Figure 16.75. Emission spectra <strong>of</strong> wild-type myristoylated protein kinase<br />

C and single-tryptophan containing mutants, in the absence and presence<br />

<strong>of</strong> calmodulin. Revised from [119].<br />

W15. Interpret these data in terms <strong>of</strong> the accessibility<br />

<strong>of</strong> each tryptophan residue to quenching, the<br />

Stern-Volmer quenching constants, and fractional<br />

accessibilities to quenching.

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