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Spontaneous resonance Raman or resonance-enhanced AC-coupled inverse Raman spectra were obtained for 8-mercaptoriboflavin, 8-(dimethylamino) riboflavin, 8-hydroxyriboflavin, and 8-aminoriboflavin all free in solution. These Raman spectra were all similar to one another and markedly different from that of riboflavin. In addition, the Raman spectra of 8-mercaptoflavin bound to the apoproteins of old yellow enzyme, glucose oxidase, and L-lactate oxidase were determined. The Raman spectra of these protein-bound flavins were distinctly different from both those of the above 8-substituted riboflavins and that of riboflavin. An argument is presented in favor of assigning a quinonoid electronic structure to these protein-bound flavins.
L M Schopfer, and
J P Haushalter, and
M Smith, and
M Milad, and
M D Morris
October 1980,
Biochemistry,
L M Schopfer, and
J P Haushalter, and
M Smith, and
M Milad, and
M D Morris
May 1980,
Biochimica et biophysica acta,
L M Schopfer, and
J P Haushalter, and
M Smith, and
M Milad, and
M D Morris
October 1983,
Biochimica et biophysica acta,
L M Schopfer, and
J P Haushalter, and
M Smith, and
M Milad, and
M D Morris
June 1979,
Archives of biochemistry and biophysics,
L M Schopfer, and
J P Haushalter, and
M Smith, and
M Milad, and
M D Morris
May 1973,
Journal of the American Chemical Society,
L M Schopfer, and
J P Haushalter, and
M Smith, and
M Milad, and
M D Morris
August 1980,
Journal of biochemistry,
L M Schopfer, and
J P Haushalter, and
M Smith, and
M Milad, and
M D Morris
May 1972,
Biochimica et biophysica acta,
L M Schopfer, and
J P Haushalter, and
M Smith, and
M Milad, and
M D Morris
November 1980,
Biochimica et biophysica acta,
L M Schopfer, and
J P Haushalter, and
M Smith, and
M Milad, and
M D Morris
August 1972,
Biochimica et biophysica acta,
L M Schopfer, and
J P Haushalter, and
M Smith, and
M Milad, and
M D Morris
January 1978,
Methods in enzymology,
