STAT6 Overexpression Lysate

HEK293T cells in 10-cm dishes were transiently transfected with a non-lipid polymer transfection reagent specially designed and manufactured for large volume DNA transfection. Transfected cells were cultured for 48hrs before collection. The cells were lysed in modified RIPA buffer (25mM Tris-HCl pH7.6, 150mM NaCl, 1% NP-40, 1mM EDTA, 1xProteinase inhibitor cocktail mix, 1mM PMSF and 1mM Na3VO4, and then centrifuged to clarify the lysate. Protein concentration was measured by BCA protein assay kit.

Signal Transducer and Activator of Transcription 6 (STAT6) is a member of the Janus family tyrosine kinases (Jak)/ STAT signal transduction pathway and mediates cytokine signaling by IL 4 and IL-13 (1). STAT6 (predicted molecular weight 94kDa) has been found to induce the expression of BCL2L1/BCL-X(L), which is responsible for the anti-apoptotic activity of IL-4. In response to cytokines and growth factors, STAT family members are phosphorylated by the receptor associated kinases, and then form homo- or heterodimers that translocate to the cell nucleus where they act as transcription activators. STAT6 is tyrosine phosphorylated (Tyr641) in response to cellular interaction with IL-4. STAT6 mRNA has been detected in peripheral blood lymphocytes, colon, intestine, ovary, prostate, thymus, spleen, kidney, liver, lung and placenta. STAT6 is critically involved in Th2 and Th9 immune response (2). Loss of STAT6 impairs IL-4 mediated functions including Th2 helper T cell differentiation, expression of cell surface markers, T-cell proliferation, immunoglobulin class switching to IgE, and partial loss of IL-4 mediated proliferation. Diseases associated with STAT6 include malignant hemangiopericytoma and nut allergies.

References

1. Waqas, S. F. H., Ampem, G., & Roszer, T. (2019). Analysis of IL-4/STAT6 Signaling in Macrophages. Methods Mol Biol, 1966, 211-224. doi:10.1007/978-1-4939-9195-2_17

2. Goenka, S., & Kaplan, M. H. (2011). Transcriptional regulation by STAT6. Immunol Res, 50(1), 87-96. doi:10.1007/s12026-011-8205-2

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Lysates are guaranteed for 6 months from date of receipt.

Array NBL1-16529

• STAT6 Antibodies
• STAT6 ELISA Kits
• STAT6 Lysate
• STAT6 Proteins