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Curr Protoc Chem Biol. 2015 Mar 2;7(1):17-25. doi: 10.1002/9780470559277.ch140208.

Universal non-antibody detection of protein phosphorylation using pIMAGO.

Author information

1
Department of Biochemistry, Purdue University, West Lafayette, Indiana; Tymora Analytical Operations, LLC, West Lafayette, Indiana.

Abstract

This article describes methods for a new, non-antibody phosphorylation detection reagent, termed pIMAGO (phospho-imaging). This novel reagent takes advantage not only of the unique properties of the soluble nanoparticles, but also of the multiple functionalities of the molecule, allowing for highly selective, sensitive, and quantitative assessment of protein phosphorylation without using radioactive isotopes or phospho-specific antibodies. The methods allow for multiplexed detection of phosphorylation and total protein amount simultaneously. The straightforward and routine detection and quantitation of general phosphorylation on any site of any protein can be performed in western blot and ELISA formats.

KEYWORDS:

ELISA; high-throughput screening; kinase assay; phosphoprotein detection; phosphorylation; western blot

PMID:
25727060
PMCID:
PMC4363923
DOI:
10.1002/9780470559277.ch140208
[Indexed for MEDLINE]
Free PMC Article

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