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Copper is not responsible for the visible fluorescence of blue oxidases
Author(s) -
Avigliano Luciana,
Sirianni Patrizia,
Morpurgo Laura,
Finazzi-Agrò Alessandro
Publication year - 1983
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/0014-5793(83)80834-5
Subject(s) - fluorescence , photochemistry , chemistry , copper , tryptophan , redox , copper protein , visible spectrum , blue light , inorganic chemistry , biochemistry , organic chemistry , materials science , amino acid , physics , optoelectronics , quantum mechanics
The fluorescence of several blue copper proteins upon excitation at 330 nm has been studied. This fluorescence is not related to the redox state or even to the presence of copper, which in some cases can act as a quencher. The intensity of emission seems instead related to the amount of carbohydrate present or to tryptophan photooxidation products.