Absorption of the flavin dimers

The electronic absorption spectra of the flavomononucleotide (FMN) in aqueous solution and in glycerine-water solution with change of the dye concentration have been measured. The FMN dimer absorption spectrum, monomer absorption spectrum, dimerization constant K and molar fraction of the monomer we...

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Bibliographic Details
Published inBiochimica et biophysica acta Vol. 801; no. 3; pp. 456 - 460
Main Authors Grajek, Hanna, Drabent, Regina, Żurkowska, Grażyna, Bojarski, Czesław
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 01.01.1984
Elsevier
North-Holland
Subjects
Absorption spectrum
Biological and medical sciences
Flavin dimer
FMN
Fundamental and applied biological sciences. Psychology
Molecular biophysics
Spectroscopy : techniques and spectras
Flavin dimer
FMN
Absorption spectrum
Flavin
Dimer
Aqueous solution
Hydroorganic solvent
Coenzyme
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Summary:The electronic absorption spectra of the flavomononucleotide (FMN) in aqueous solution and in glycerine-water solution with change of the dye concentration have been measured. The FMN dimer absorption spectrum, monomer absorption spectrum, dimerization constant K and molar fraction of the monomer were calculated. It was found that FMN dimerization constants in aqueous solution were K a = 118.0 l/mol and in glycerine K g = 20.5 l/mol. In the region of the monomer absorption band two dimer absorption bands appear, in accordance with the Kasha molecular exciton theory.
ISSN:0304-4165
0006-3002
1872-8006
1878-2434
DOI:10.1016/0304-4165(84)90152-1