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YOU ARE HERE:  Browse Product Catalog > Affinity Purification > Post Translational Modification > Phosphoprotein Enrichment Kit  


Phosphoprotein Enrichment Kit 

Enrich phosphoproteins for analysis in Western blotting or mass spectrometry.

Pierce Phosphoprotein Enrichment Kit
  • Specific - low nonspecific protein contamination from complex biological samples, such as cell culture lysate and mouse tissue extract
  • Fast - easy spin format enables enrichment of phosphorylated proteins in less than 2 hours
  • Superior Yield - acheives higher yields than other commercially available kits (Table 1)
  • Convenient format - complete kit offering pre-dispensed spin columns, buffers, reagents and ultrafiltration columns for enrichment
  • Compatible - downstream applications include mass spectrometry, Western blotting, and 2D-PAGE

Phosphorylation is one of the most frequently occurring post-translational modifications in proteins and it regulates nearly all intracellular biological events including, signal transduction, protein-protein interaction, protein stability, protein localization, apoptosis, and cell cycle control. Detecting changes in protein phosphorylation can be a difficult task, because of the transient labile state of the phosphate group. Furthermore, low phosphoprotein abundance and poorly developed phospho-specific antibodies also contribute to difficulties in phosphoprotein detection. Recent advances in Mass Spectrometry technology in combination with phosphoprotein enrichment using immobilized metal affinity chromatography (IMAC) have resulted in greater resolution of the phosphoproteome.

The Thermo Scientific Pierce Phosphoprotein Enrichment Kit is designed for the efficient enrichment of phosphorylated proteins derived from mammalian cells and tissues. The proprietary resin and buffer composition produces superior yields with negligible non-specific binding. The kit is offered in a convenient spin format and is compatible with downstream applications including Western blotting, Mass Spec, 2D-PAGE, and protein arrays.


Table 1. The Pierce Phosphoprotein Enrichment Kit provides higher phosphoprotein yields in less time than other kits.
Kit
Phosphoprotein
Yield (µg)
Enrichment Time
(Hours)
Our Phosphoprotein Enrichment Kit
300
1.5
Competitor Q Kit
88
4.5
Competitor I Kit
  52††
3.5
Competitor C Kit
160
3
Competitor E Kit
Too dilute to determine
5

From 2 mg total protein; †† Based on maximum 1 mg load per manufacturer’s protocol



Phosphoprotein Enrichment of phosphoproteins in 3T3 and HeLa cells    Figure 1: Pierce Phosphoprotein Enrichment Kit enriches phosphoproteins from complex biological samples with low non-specific binding.
Specificity of Phosphoprotein Enrichment of phosphoproteins in HeLa cells    Figure 2: Pierce Phosphoprotein Enrichment Kit provides high specificity.
Pierce Phosphoprotein Enrichment of phosphoproteins in Liver cells    Figure 3: Pierce Phosphoprotein Enrichment Kit efficiently enriches phosphoproteins from mouse liver extract.

Related Resources and Products
Phosphoprotein Enrichment Kit FAQ
Phosphopeptide Isolation Kit
Glycoprotein Isolation Kits
Ubiquitin Enrichment Kit
Halt Phosphatase Inhibitor Cocktail
Halt Protease Inhibitor Single-Use Cocktail
Protein Stabilizing Cocktail


Ordering Information
Certificate of AnalysisCertificate of Analysis   Product InstructionsProduct Instructions   MSDSMSDS
Buy Product # Description Pkg. Size Files Price
Add 90003 Pierce Phosphoprotein Enrichment Kit
Includes:  
Phosphoprotein Enrichment Columns (1 ml resin bed)     10 ea.
Lysis/Binding/Wash Buffer 325 ml
Elution Buffer 60 ml
CHAPS 1 g
Protein Concentrators (7 ml/9K MWCO) 10 ea.
White Column Caps 10 ea.
Kit Product Instructions MSDS MSDS MSDS MSDS MSDS $430.00

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