Homogeneous spectrally- and time-resolved fluorescence emission from single-trytophan mutants of IIA(super Glc) protein

Article Abstract:

A criterion for distinguishing between homogeneous and heterogeneous time-resolved fluorescence emission of tryptophan residues in proteins was experimentally tested and the microscopic dielectric response function in two proteins, where long-lived or permanent heterogeneity is absent, was measured. Results indicate that the fluorescence emission from the single-tryptophan mutants E21W and F3W of the IIA(super Glc) protein were free from permanent and long-lived heterogeneity and significant variation in the dielectric response could be caused due to the addition of glycerol.

Observations, Fluorescence, Optical properties

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Solvation dynamics in the molten globule state of a protein

Article Abstract:

The solvation dynamics in the molten globule state of GlnRS is studied using both a covalent probe and a noncovalent probe, bisanilinosulfonate. It is demonstrated that the solvation dynamics in the molten globule state of GlnRS is quite slow.

Chemical structure, Chemical properties, Globulin, Globulins

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