Article
Terbium(III) luminescence study of tyrosine emission from Escherichia coli glutamine synthetase.
Biochemistry - 9 Apr 1991
Lin W Y, Dombrosky P, Atkins W M, Villafranca J J
Abstract excerpt
Radiationless energy transfer from tyrosine to Tb(III) in Escherichia coli glutamine synthetase and its two mutants (W57L and W158S) has been utilized to assess the tyrosine residue(s) responsible for the observed tyrosine emission and to investigate its spatial relationships to the two metal binding sites of GS. The interference from tryptophan fluorescence was removed by chemical modification of the tryptophan...
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