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T1/ST2 (IL-33 R) Mouse, Monoclonal Antibody, PE Conjugated

T1/ST2 (IL-33 R) Monoclonal Antibody, PE Conjugated
Catalog Number: 
0.1 mL

Monoclonal Antibody to mouse T1/ST2 (IL-33 R), clone DJ8 from MD Bioproducts

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International: +41-44 986 2628

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Mouse T1/ST2 (IL-33 R) PE conjugated monoclonal antibody (clone DJ8) for the identification and purification of Th2 cells and all forms of murine mast cells. 



T1/ST2 (also known as IL-1 R4 or IL-33Ra) is a transmembrane glycoprotein expressed on mast cells and Th2 cells. It is a selective marker for murine Th2 lymphocytes and plays a role in regulating inflammatory responses. IL-33 is a recently identified member of the IL-1 family of cytokines and is involved in Th2 mediated immune responses. IL-33 mediates its biological effects via T1/ST2 binding. The roles of IL-33 and T1/ST2 (IL-33Ra) have been investigated in many immune responses such as allergy, asthma, rheumatoid arthritis and osteoarthritis.



Rat anti-Mouse T1/ST2 PE-conjugated mAb

Clone: DJ8


Ig Subclass: IgG1 (light chain not isotyped)


Form: The R-phycoerthrin free Bovine Serum Albumin (BSA) and with 0.1% sodium azide as a perservative and purified over protein G-sepharose. The characteristics of each lot are tested by FACS analysis with bone marrow derived mast cells.


Specificity: This clone recognizes the membrane anchored murine T1M protein on the surface of T helper 2 cells and mast cells. T1M appears on fetal blood derived mast cell progenitors before they express the Fce RI, on IL-3-dependent bone marrow derived mast cells and on mature peritoneal mast cells. The antibody detects T1S protein consisting only of the extracellular portion of the protein, which is secreted from growth factor and proinflammatory cytokine-stimulated murine fibroblasts.


Immunogen: Eukariotically expressed fusion protein of mouse T1 ectodomain and human immunoglobulin Fc domain.



T1/ST2 Monoclonal Antibody, PE conjugated (PDF, product insert)


Understanding The Four Isoforms of ST2 (blog post)



Van der Jeught, K., Sun, Y., Fang, Y., Zhou, Z., Jiang, H., Yu, T., ... & Eyvani, H. (2020). ST2 as checkpoint target for colorectal cancer immunotherapy. JCI insight, 5(9).


Van der Jeught, K., Sun, Y., Fang, Y., Zhou, Z., Jiang, H., Yu, T., ... & Eyvani, H. (2020). ST2 as checkpoint target for colorectal cancer immunotherapy. JCI insight, 5(9).


Symowski, C., & Voehringer, D. (2019). Th2 cell-derived IL-4/IL-13 promote ILC2 accumulation in the lung by ILC2-intrinsic STAT6 signaling in mice. European Journal of Immunology.


Kobayashi, T., Voisin, B., Kennedy, E. A., Jo, J. H., Shih, H. Y., Truong, A., ... & Moro, K. (2019). Homeostatic Control of Sebaceous Glands by Innate Lymphoid Cells Regulates Commensal Bacteria Equilibrium. Cell176(5), 982-997


Moldaver, D. M., Bharhani, M. S., Rudulier, C. D., Wattie, J., Inman, M. D., & Larché, M. (2019). Induction of bystander tolerance and immune deviation after Fel d 1 peptide immunotherapy. Journal of Allergy and Clinical Immunology143(3), 1087-1099.


Lai, D., Tang, J., Chen, L., Fan, E. K., Scott, M. J., Li, Y., ... & Fan, J. (2018). Group 2 innate lymphoid cells protect lung endothelial cells from pyroptosis in sepsis. Cell death & disease9(3), 369.


Schneider, C., O’Leary, C. E., von Moltke, J., Liang, H. E., Ang, Q. Y., Turnbaugh, P. J., ... & Locksley, R. M. (2018). A Metabolite-Triggered Tuft Cell-ILC2 Circuit Drives Small Intestinal Remodeling. Cell.


Omata, Y., Frech, M., Primbs, T., Lucas, S., Andreev, D., Scholtysek, C., ... & Andreas, N. (2018). Group 2 Innate Lymphoid Cells Attenuate Inflammatory Arthritis and Protect from Bone Destruction in Mice. Cell reports24(1), 169-180.



How the T1/ST2 Biotinylated antibody was used:
Cutting Edge: Atopy Promotes Th2 Responses to Alloantigens and Increases the Incidence and Tempo of Corneal Allograft Rejection
Clay Beauregard et al., J. Immunol., Jun 2005; 174: 6577 - 6581.

Immunohistochemistry analysis to detect the presence of Th2 cells in four-micrometer cross sections of the eye. Eyes were obtained from C57/BL/6 and BALB/c mice.

Predominance of Th2 response in human abdominal aortic aneurysm: Mistaken identity for IL-4-producing NK and NKT cells?  Chan WL, et al. Cellular Immun (2005) 233:109-114

Application of ST2L and IL18R markers in absdominal aortic aneurysms
Changes in systemic type 1 and type 2 immunity in normal pregnancy and pre-eclampsia may be mediated by natural killer cells  Borzychowski, A.M. et al., Eur J Immunol (2005) 35:3054-3063. 
Demonstrates the use of ST2L and IL-18R in differentiating normal versus pre-eclamptic pregnancies.
Atherosclerotic Abdominal Aortic Aneurysm and the Interaction Between Autologous Human Plaque-Derived Vascular Smooth Muscle Cells, Type-1 NKT, and Helper T-Cells  Chan, W.L. et al., Circ Res (2005) 96:675-683
Use of Il-18R and ST2L in differentiating inflammatory cells in the presence of atherosclerotic plaques in Abdominal Aortic Aneurysm (AAA)
NKT cell subsets in infection and inflammation  Chan WL, et al. Immun Lett (2003) 85:159-163
Data demonstrating that ST2L and IL-18R could serve as important determinants of immune status in human diseases such as HIV, psoriasis, atherosclerosis
Regulation of ST2L expression on T helper (Th) type 2 cells  Carter, R.W. et al., Eur. J. Immunol. (2001) 31:2979-2985
Data providing mechanistic explanation for the selective expression of ST2L on Th2 cells
Human IL-18 Receptor and ST@L Are Stable and Selective markers for the Respective Type 1 and Type 2 Circulating Lymphocytes  Chan WL, et al. J Immunol. 2001 Aug 1; 167(3):1238-44.ST2L and IL-18R markers are stable cell surface markers serving as important determinants of the general immune status in human diseases, thereby useful as markers for therapeutic monitoring and intervention.


How To Use

How To Use: 

This antibody allows the identification and purification of murine T helper 2 cells and all forms of murine mast cells.




  • Flow cytometry
  • immunoprecipitation