Sequence analysis of phosphotyrosine-containing peptides. Determination of PTH-phosphotyrosine by capillary electrophoresis
Autor: | R. M. Valerio, John W. Perich, J. Coull, Lorenzo A. Pinna, Arianna Donella-Deana, Helmut E. Meyer, Anna Maria Brunati, R. B. Johns, Horst Korte, E. Hoffmann-Posorke |
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Rok vydání: | 1990 |
Předmět: | |
Zdroj: | Chromatographia. 30:691-695 |
ISSN: | 1612-1112 0009-5893 |
DOI: | 10.1007/bf02269745 |
Popis: | Tyrosine phosphorylation is an essential step in the transduction of extracellular stimuli into target cells. Here, we describe a method which allows the localization of phosphotyrosine nonradioactively. Solid phase sequencing of phosphotyrosine-containing peptides and subsequent capillary electrophoresis of PTH-phosphotyrosine permits the unambiguous identification of this phosphoamino acid. Less than 1 picomol PTH-phosphotyrosine can be determined without any need for radioactive labelling. |
Databáze: | OpenAIRE |
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