Finding phosphotyrosine: Phosphotyrosine (either in its monomeric form or as a component of oligopeptides) was selectively detected by using luminescence in the presence of a specialized terbium(III) complex, without any signals from nonphosphorylated tyrosine, phosphoserine, phosphothreonine, nucleotides, or nucleic acids. Tyrosine phosphorylation could clearly be distinguished even in the presence of single-stranded RNA.
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Akiba et al. (2009) studied this question.
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