Exalpha Biologicals, Inc.

Accelerating the Pace of Discovery

Product Highlight

Mouse anti-M13 phage coat protein g8p

Antibodies recognising M13 filamentous phage coat proteins are instrumental in the selection and detection of phages expressing specific antibody fragments or peptide sequences at their surface. The monoclonal antibodies manufactured and supplied by Exalpha react with either the pIII (g3p) or pVIII (g8p) proteins of M13 filamentous bacteriophage. All antibodies are available in a purified format. The antibodies are fully validated and are suitable for a wide range of techniques including:

  • Flow Cytometry
  • Western Blot
  • Immunohistochemistry
  • Immunoprecipitation
For more information, click here for our M13 Bacteriophage information page.


Two more of our excellent products have been published by PubMed:

Potential actionable targets in appendiceal cancer detected by immunohistochemistry, fluorescent in situ hybridization, and mutational analysis
Borazanci, E., et al., J. Gastrointest. Oncol., 8, 164-172 (2017)
Using Exalpha SPARC Antibody (Cat. No. X1867P)

Molecular mechanism underlying the pharmacological interactions of the protein kinase C-β inhibitor enzastaurin and erlotinib in non-small cell lung cancer cells
Steen, N.V., et al., Am. J. Cancer Res., 7, 816-830 (2017)
Using Exalpha's FITC labeled anti PY20 Antibody (Cat. No. X1017)

Exalpha Biologicals, Inc.

SHP-2 (224-529)/PTPN11

  • Product Code: X1663E
  • Size: 20 µg
  • Price (USD): $361

Cat #

X1663E		 Quantity:      

Data Sheet

Product Name

SHP-2 (224-529)/PTPN11



Product Type

Active Enzyme




Enyzme activity assay standard


20 µg

Price (USD)



SHP-2, also known as Tyrosine-protein phosphatase, non-receptor type 11 (PTPN11), Protein-tyrosine phosphatase 2C, PTP-2C, PTP-1D, SH-PTP3 and SH-PTP2 is protein tyrosine phosphatase which relays signals from growth factor receptors to Ras and other effectors. Germline PTPN11 mutations underlie ~50% of Noonan Syndrome (NS), a developmental disorder associated with an elevated risk of juvenile myelomonocytic leukemia (JMML). Somatic PTPN11 mutations were recently identified in ~35% of JMML patients; these mutations introduce amino acid substitutions that are distinct from those found in NS. These myeloid leukemias include activating mutations as in the RAS family members, and in the receptor tyrosine kinases KIT and FLT3, loss of function of NF-1 mutants, and gain-of-function mutations in the hematopoietic phosphatase SHP-2. Although these mutations collectively account for as many as 50% of cases of AML, with rare exception, only one of these is mutant in any given patient. This epidemiologic observation suggests that these mutations can be viewed as a complementation group and that any one of these is sufficient to contribute proliferative and survival advantage to a leukemic cell.


Recombinant enyzme produced in E. coli


Provided in 25 mM Tris-HCl, 75 mM NaCl, pH 8.0, 0.05% Tween, 1 mM DTT and 50% glycerol 2 mM EDTA, 10 mM glutathione.

Customer Storage

Enzyme should be stored at -20°C. Enzyme should be kept on ice when dispensing

Target Molecular Weight

59.5 kDa

Database Links:



[1] Ahmad S., Banville D.L., Zhao Z., Fischer E.H., Shen S.H.;
A widely expressed human protein-tyrosine phosphatase containing src homology 2 domains.;
Proc. Natl. Acad. Sci. U.S.A. 90:2197-2201(1993).

[2] Vogel W., Lammers R., Huang J., Ullrich A.;
Activation of a phosphotyrosine phosphatase by tyrosine phosphorylation.; Science 259:1611-1614(1993).

[3] Adachi M., Sekiya M., Miyachi T., Matsuno K., Hinoda Y., Imai K., Yachi A.;
Molecular cloning of a novel protein-tyrosine phosphatase SH-PTP3 with sequence similarity to the src-homology region 2.; FEBS Lett. 314:335-339(1992).

[4] Bastien L., Ramachandran C., Liu S., Adam M.;
Cloning, expression and mutational analysis of SH-PTP2, human protein-tyrosine phosphatase. Biochem. Biophys. Res. Commun. 196:124-133(1993).

[5] Freeman R.M. Jr., Plutzky J., Neel B.G.;
Identification of a human src homology 2-containing protein-tyrosine-phosphatase: a putative homolog of Drosophila corkscrew.; Proc. Natl. Acad. Sci. U.S.A. 89:11239-11243(1992).

[6] Bennett A.M., Tang T.L., Sugimoto S., Walsh C.T., Neel B.G.;
Protein-tyrosine-phosphatase SHPTP2 couples platelet-derived growth factor receptor beta to Ras. Proc. Natl. Acad. Sci. U.S.A. 91:7335-7339(1994).

[7] Salomon A.R., Ficarro S.B., Brill L.M., Brinker A., Phung Q.T., Ericson C., Sauer K., Brock A., Horn D.M., Schultz P.G., Peters E.C.;
Profiling of tyrosine phosphorylation pathways in human cells using mass spectrometry.; Proc. Natl. Acad. Sci. U.S.A. 100:443-448(2003).

[8] Kharitonenkov A., Chen Z., Sures I., Wang H., Schilling J., Ullrich A.;
A family of proteins that inhibit signalling through tyrosine kinase receptors.; Nature 386:181-186(1997).

[9] Hof P., Pluskey S., Dhe-Paganon S., Eck M.J., Shoelson S.E.;
Crystal structure of the tyrosine phosphatase SHP-2.; Cell 92:441-450(1998).

[10] Tartaglia M., Mehler E.L., Goldberg R., Zampino G., Brunner H.G., Kremer H., van der Burgt I., Crosby A.H., Ion A., Jeffery S., Kalidas K., Patton M.A., Kucherlapati R.S., Gelb B.D.;
Mutations in PTPN11, encoding the protein tyrosine phosphatase SHP-2, cause Noonan syndrome.; Nat. Genet. 29:465-468(2001).