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
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