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Anti-Phosphotyrosine Antibody, clone 4G10®

clone 4G10®, Upstate®, from mouse

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biological source


Quality Level

antibody form

purified from hybridoma cell culture

antibody product type

primary antibodies


4G10®, monoclonal

species reactivity (predicted by homology)





immunoprecipitation (IP): suitable
western blot: suitable



shipped in

wet ice

target post-translational modification

phosphorylation (pTyr)


Anti-Phosphotyrosine Antibody, clone 4G10 detects level of Phosphotyrosine & has been published & validated for use in IP & WB.


Routinely evaluated on EGF-treated human A431 carcinoma cells.

Western Blot Analysis:
0.5-2 μg/mL of this lot detected tyrosine-phosphorylated proteins in a modified RIPA lysate from EGF-treated human A431 carcinoma cells (Cohen, B., 1990; Druker, B. J., 1989; Kanakura, Y., 1991).

Target description

Dependent upon the molecular weight of the tyrosine phosphorylated protein being detected.

Physical form

Format: Purified
Purified mouse monoclonal IgG2bκ in buffer containing PBS, pH 7.4. Liquid at 2-8ºC.
IgG2bκ mouse monoclonal antibody produced in vitro by mouse-mouse hybridoma 4G10 (FOX-NY [NS-1 derivative] myeloma x spleen cells).

Analysis Note

Positive Antigen Control: Catalog #12-302, EGF-stimulated A431 cell lysate. Add 2.5µL of 2-mercaptoethanol/100µL of lysate and boil for 5 minutes to reduce the preparation. Load 20µg of reduced lysate per lane for minigels.

Other Notes

Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.

Legal Information

4G10 is a registered trademark of Upstate Group, Inc.
UPSTATE is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class

12 - Non Combustible Liquids




Not applicable


Not applicable

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Xin A Zhang et al.
The Journal of biological chemistry, 278(29), 27319-27328 (2003-05-10)
KAI1/CD82 protein is a member of the tetraspanin superfamily and has been rediscovered as a cancer metastasis suppressor. The mechanism of KAI1/CD82-mediated suppression of cancer metastasis remains to be established. In this study, we found that migration of the metastatic
Hoang Thanh Chi et al.
Biomedical reports, 19(1), 47-47 (2023-06-29)
ETS variant transcription factor 6 (ETV6)-neurotrophic receptor tyrosine kinase 3 (NTRK3) (EN) fusions are typically found in rare diseases, such as primary renal fibrosarcoma (only six cases have been reported), secretory carcinoma of the breast and salivary gland (1 case)
Zhi Liu et al.
The Journal of biological chemistry, 290(12), 7535-7562 (2015-01-15)
Producing pure and well behaved bispecific antibodies (bsAbs) on a large scale for preclinical and clinical testing is a challenging task. Here, we describe a new strategy for making monovalent bispecific heterodimeric IgG antibodies in mammalian cells. We applied an
Yongsheng Ruan et al.
Experimental and therapeutic medicine, 23(1), 47-47 (2021-12-23)
Treatment of resistant or recurrent acute lymphoblastic leukemia (ALL) remains a challenge. It was previously demonstrated that the adhesion molecule integrin α4, referred to hereafter as α4, mediates the cell adhesion-mediated drug resistance (CAM-DR) of B-cell ALL by binding to
Hui Guo et al.
Acta pharmacologica Sinica, 39(3), 425-437 (2017-11-10)
STAT1 and STAT3 are two important members of the STAT (signal transducers and activators of transcription) protein family and play opposing roles in regulating cancer cell growth. Suppressing STAT3 and/or enhancing STAT1 signaling are considered to be attractive anticancer strategies.

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