Exalpha Biologicals, Inc.

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Exalpha Biologicals, Inc. is now a US distributor for Nordic-Mubio products

Nordic-MUbio develops and manufactures high quality antibody reagents for use in R&D. All our products are manufactured according to strict ISO 9001 quality guidelines, and our focus is on developing antibodies targetting Cell Adhesion, Nuclear and Cytoskeletal Proteins.

Nordic-MUbio is one of the leading antibody companies developing antibodies for zebrafish research – we currently have over 50 antibodies validated for immunofluorescence in zebrafish.

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Latest References

Akazawa, Y., et al. "Endoplasmic Reticulum Stress Contributes to Helicobacter Pylori VacA-Induced Apoptosis" PLoS ONE 8(12): e82322

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Homa, N.J., et al. "Epstein-Barr Virus Induces Global Changes in Cellular mRNA Isoform Usage That Are Important for the Maintenance of Latency" J. Virol., 2013, 87, 12291-12301

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Exalpha Biologicals, Inc.

Protein Tyrosine Kinase

  • Product Code: X1190E
  • Size: 500 units
  • Availability: In Stock In Stock
  • Price (USD): $244

Cat #

X1190E		 Quantity:      

Data Sheet

Product Name

Protein Tyrosine Kinase


Porcine Protein-Tyrosine Kinase Enzyme


Purified from porcine

Product Type

Active Enzyme




Enzymatic activity standard for use in assays with protein-tyrosine kinases


500 units

Price (USD)



The importance of protein tyrosine phosphorylation in such diverse cellular processes as proliferation, differentiation and gap-juunction communication is reflected in the enormous number of protein tyrosine kinases that have been identified and described in the last thirty years. The roles played by anomalies in expression of these enzymes in cancer and other disease states has made them targets of intense research interest as part of the ongoing search for new therapies. Tyrosine kinases purified from mammalian tissue sources may be valuable to the study of generalized tyrosine phosphorylation or for the generation of specific phosphorylated peptides. Our PTK enzyme has been purified from porcine kidney utilizing both classical chromatographic procedures as well as affinity chromatography on immobilized substrate of random amino acid copolymers containing tyrosine, but not serine or threonine.


Porcine kidney


Provided in 10mM Tris (pH 7.4) solution containing 100 mM NaCl, , 50% glycerol

Customer Storage

Product should be stored at -70°C. Aliquot to avoid freeze/thaw cycles

Product Image

Image Legend

Typical time course of phosphorylation comparing PTK enzyme(Cat. No. X1190E) to a commercially available preparation Abl tyrosine kinase.