Cell Signaling Technology

Product Pathways - Screening Technologies

PTMScan® Propionyl-Lysine [Prop-K] Kit #17848

Acyl   Acylation   Propionyl   PTMScan  


No. Size Price
17848S 1 Kit ( 10 assays ) 请询价 现货查询 购买询价
Kit Includes Quantity Applications Reactivity Homology† MW (kDa) Isotype
PTMScan(R) Propionyl-Lysine Immunoaffinity Beads 80 µl Rabbit IgG
PTMScan® IAP Buffer (10X) #9993 600 µl
PTMScan® Limited Use License license


PTMScan® Technology employs a proprietary methodology from Cell Signaling Technology (CST) for peptide enrichment by immunoprecipitation using a specific bead-conjugated antibody in conjunction with liquid chromatography (LC) tandem mass spectrometry (MS/MS) for quantitative profiling of post-translational modification (PTM) sites in cellular proteins. These include phosphorylation (PhosphoScan®), ubiquitination (UbiScan®), acetylation (AcetylScan®), and methylation (MethylScan®), among others. PTMScan® Technology enables researchers to isolate, identify, and quantitate large numbers of post-translationally modified cellular peptides with a high degree of specificity and sensitivity, providing a global overview of PTMs in cell and tissue samples without preconceived biases about where these modified sites occur. For more information on PTMScan® Proteomics Services, please visit www.cellsignal.com/services/index.html.

Motif Logo

Motif Logo

The Motif Logo was generated from a PTMScan® LC-MS/MS experiment using 430 nonredundant tryptic peptides derived from mouse liver tissue immunoprecipitated with PTMScan® Propionyl-Lysine [Prop-K] Immunoaffinity Beads. The logo represents the relative frequency of amino acids in each position surrounding the central propionylated lysine residue within this data set.



The chart shows the relative category distribution of proteins with propionylated lysine residues derived from peptides identified in a PTMScan® LC-MS/MS experiment of mouse liver tissue using PTMScan® Propionyl-Lysine Immunoaffinity Beads.

Directions for Use

Cells are lysed in a urea-containing buffer, cellular proteins are digested by proteases, and the resulting peptides are purified by reversed-phase solid-phase extraction. Peptides are then subjected to immunoaffinity purification using a PTMScan® Motif Antibody conjugated to protein A agarose beads. Unbound peptides are removed through washing, and the captured PTM-containing peptides are eluted with dilute acid. Reversed-phase purification is performed on microtips to desalt and separate peptides from antibody prior to concentrating the enriched peptides for LC-MS/MS analysis. CST recommends the use of PTMScan® IAP Buffer #9993 included in the kit. An alternate PTMScan® IAP Buffer Plus Detergent #9992, which may reduce nonspecific interactions, is available separately. A detailed protocol and Limited Use License allowing the use of the patented PTMScan® method are included with the kit.


Lysine is subject to a wide array of regulatory post-translational modifications due to its positively charged ε-amino group side chain. The most prevalent of these are ubiquitination and acetylation, which are highly conserved among prokaryotes and eukaryotes (1,2). Acyl group transfer from the metabolic intermediates acetyl-, succinyl-, malonyl-, glutaryl-, butyryl-, propionyl-, and crotonyl-CoA all neutralize lysine’s positive charge and confer structural alterations affecting substrate protein function. Lysine acetylation is catalyzed by histone acetyltransferases, HATs, using acetyl-CoA as a cofactor (3,4). Deacylation is mediated by histone deacetylases, HDACs 1-11, and NAD-dependent Sirtuins 1-7. Some sirtuins have little to no deacetylase activity, suggesting that they are better suited for other acyl lysine substrates (5).

Protein propionyl and butyryl transferase activity has been reported for p300 and CREB-binding protein, two acetyltransferases that can autoacylate as well as target histone proteins and p53 in vitro. Sirt1 (Sir2 in yeast) has been shown to have depropionylase activity and may be a major eukaryotic depropionylase (6,7). In the cytosol, acetyl-CoA carboxylase (ACC) converts acetyl-CoA to Malonyl-CoA and the reverse reaction is catalyzed by Malonyl-CoA decarboxylase (MCD), but in the mitochondria, propionyl-CoA carboxylase takes the role of ACC. Both MCD and ACC are regulated by AMPK, glucose levels, and insulin, underscoring their importance in intermediary metabolism (8).

  1. Liu, Z. et al. (2014) Nucleic Acids Res 42, D531-6.
  2. Lee, S. (2013) Toxicol Res 29, 81-6.
  3. Lin, H. et al. (2012) ACS Chem Biol 7, 947-60.
  4. Zhang, Z. et al. (2011) Nat Chem Biol 7, 58-63.
  5. Du, J. et al. (2011) Science 334, 806-9.
  6. Chen, Y. et al. (2007) Mol Cell Proteomics 6, 812-9.
  7. Cheng, Z. et al. (2009) Mol Cell Proteomics 8, 45-52.
  8. Newman, J.C. et al. (2012) J Biol Chem 287, 42436-43.

Application References

Have you published research involving the use of our products? If so we'd love to hear about it. Please let us know!

Companion Products

For Research Use Only. Not For Use In Diagnostic Procedures.

Use of Cell Signaling Technology (CST) Motif Antibodies within certain methods (e.g., U.S. Patents No. 7,198,896 and 7,300,753) may require a license from CST. For information regarding academic licensing terms please have your technology transfer office contact CST Legal Department at CST_ip@cellsignal.com. For information regarding commercial licensing terms please contact CST Pharma Services Department at ptmscan@cellsignal.com.

Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.

PTMScan is a trademark of Cell Signaling Technology, Inc.

AcetylScan is a trademark of Cell Signaling Technology, Inc.

PhosphoScan is a trademark of Cell Signaling Technology, Inc.

UbiScan is a trademark of Cell Signaling Technology, Inc.

MethylScan is a trademark of Cell Signaling Technology, Inc.

Cell Signaling Technology® is a trademark of Cell Signaling Technology, Inc.

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