Protein phosphorylation: technologies for the identification of phosphoamino acids. 1998

J X Yan, and N H Packer, and A A Gooley, and K L Williams
Macquarie University Centre for Analytical Biotechnology, School of Biological Sciences, Macquarie University, Sydney NSW, Australia.

Protein phosphorylation plays a central role in many biological and biomedical phenomena. In this review, while a brief overview of the occurrence and function of protein phosphorylation is given, the primary focus is on studies related to the detection and analysis of phosphorylation both in vivo and in vitro. We focus on phosphorylation of serine, threonine and tyrosine, the most commonly phosphorylated amino acids in eukaryotes. Technologies such as radiolabelling, antibody recognition, chromatographic methods (HPLC, TLC), electrophoresis, Edman sequencing and mass spectrometry are reviewed. We consider the speed, simplicity and sensitivity of tools for detection and identification of protein phosphorylation, as well as quantitation and site characterisation. The limitations of currently available methods are summarised.

UI MeSH Term Description Entries
D010750 Phosphoproteins Phosphoprotein
D010766 Phosphorylation The introduction of a phosphoryl group into a compound through the formation of an ester bond between the compound and a phosphorus moiety. Phosphorylations
D010768 Phosphoserine The phosphoric acid ester of serine. Serine Phosphate,Phosphorylserine,Seryl Phosphate,Phosphate, Serine,Phosphate, Seryl
D010769 Phosphothreonine The phosphoric acid ester of threonine. Used as an identifier in the analysis of peptides, proteins, and enzymes. Threonine Phosphate,Phosphate, Threonine
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D019000 Phosphotyrosine An amino acid that occurs in endogenous proteins. Tyrosine phosphorylation and dephosphorylation plays a role in cellular signal transduction and possibly in cell growth control and carcinogenesis. Tyrosine-O-phosphate,Tyrosine O phosphate
D019606 Phosphoamino Acids Amino acids that contain phosphorus as an integral part of the molecule. Amino Acids, Phosphorus,Acids, Phosphoamino,Acids, Phosphorus Amino,Phosphorus Amino Acids

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