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Safety Data Sheet (SDS) Alexa Fluor 647 Anti-mouse Aiolos Antibody     Product Data Sheet (PDF)    
Alexa Fluor® 647 Anti-mouse Aiolos Antibody
3866025 25 µg $130.00       
3866030 100 µg $330.00       
Clone: 8B2
Isotype: Mouse IgG
Reactivity: Mouse, does not cross-react with human
Immunogen: N-terminal half of mouse Aiolos fused to GST
Formulation: Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide.
Preparation: The antibody was purified by affinity chromatography and conjugated with Alexa Fluor® 647 under optimal conditions.
Concentration: 0.5 mg/ml
Storage & Handling: The antibody solution should be stored undiluted between 2°C and 8°C, and protected from prolonged exposure to light. Do not freeze.

ICFC - Quality tested

Application Notes:

Additional reported applications (for the relevant formats) include: intracellular flow cytometry1, immunoprecipitation1, and Western blotting2.

This product is for research use only, cannot be used on or in humans, and is not to be used for commercial purposes.  Use of this product to produce products for sale or for diagnostic, therapeutic or drug discovery purposes is prohibited.  In order to obtain a license to use this product for commercial purposes, contact the Regents of the University of California.

Recommended Usage:

Each lot of this antibody is quality control tested by intracellular immunofluorescent staining using our nuclear factor staining protocol. For flow cytometric staining, the suggested use of this reagent is ≤0.125 µg per million cells in 100 µl volume. It is recommended that the reagent be titrated for optimal performance for each application.

* Alexa Fluor® 647 has a maximum emission of 668 nm when it is excited at 633 nm / 635 nm.

Application References:

1. Laszlo G, et al. 1993. J. Immunol. 150:5252. (ICFC, IP)
2. Thompson EC, et al. 2007. Immunity 26:335. (WB)

C57BL/6 mouse splenocytes were stained

C57BL/6 mouse splenocytes were stained with CD3 Alexa Fluor® 488, fixed and permeabilized with Nuclear Factor Fixation and Permeabilization Buffer Set , and then stained with Aiolos (clone 8B2) Alexa Fluor® 647 (top) or mouse IgG1, κ Alexa Fluor® 647 isotype control (bottom).


Aiolos, an Ikaros family member, is also known as Izkf3. It has a molecular weight of 58 kD and shows 70% homology to the Ikaros isoform, Ik-1, particularly in the DNA binding and C-terminal domains. Aiolos can form a heteromer with Ikaros or exist as a homodimer. The homomeric complex is a potent transcriptional activator.  Unlike Ikaros, Aiolos is expressed in late fetal thymus and adult lymphoid organs. Among the adult hematopoietic progenitors, Aiolos is expressed at low levels in mulitpotent but not in pluripotent stem cells. When these multipotent progenitors become more restricted to T and B lymphoid pathways there is an upregulation in Aiolos expression. The highest expression of Aiolos is detected in the spleen (especially in B-cells) followed by thymus and bone marrow, and cannot be detected in the non-lymphoid organs. Aiolos plays an important role in lymphocyte proliferation and differentiation.

Other Names: IKAROS family zinc finger 3 (Ikzf3), zinc finger protein Aiolos, Zfpn1a3, Znfn1a3
Structure: 509 amino acids with predicted MW of 58 kD
Distribution: Nucleus, cytoplasm
Restricted to lymphoid lineage, expressed in B, NK and T cells
Function: Transcription factor that plays an important role in the regulation of lymphocyte differentiation; plays an essential role in regulation of B-cell differentiation, proliferation, and maturation to an effector state
Interaction: Homodimer and heterodimer with other IKAROS family members; interacts with IKZF4, IKZF5, IKZF1, HRAS, FOXP3, and BCL21L isoform Bcl-X(L); associates with histone deacetylase complexes containing HDAC1, MTA2 and SIN3A
Antigen References:

1. Morgan B, et al. 1997. EMBO J. 16:2004.
2. Wang JH, et al. 1998. Immunity 9:543.
3. Cariappa A, et al. 2001. Immunity 14:603.

This product is provided under an agreement between Life Technologies Corporation and Sony Biotechnology Inc. and the manufacture, use, sale or import of this product may be subject to one or more U.S. patents, pending applications, and corresponding non-U.S. equivalents, owned by and/or licensed to Life Technologies Corporation and its affiliates. The purchase of this product conveys to the buyer the non-transferable right to use the purchased amount of the product and components of the product in research and/or development conducted by the buyer (whether the buyer is an academic or for profit entity). The buyer cannot sell or otherwise transfer (a) this product (b) its components or (c) materials made using this product or its components to a third party or otherwise use this product or its components or materials made using this product or its components for Commercial Purposes. Commercial Purposes means any activity by a party for consideration and may include, but is not limited to (1) use of the product or its components in manufacturing, (2) use of the product or its components for therapeutic, diagnostic or prophylactic purposes, or (3) resale of the product or its components, whether or not such product or its components are resold for use in research. For information on purchasing a license to this product for any other use, contact Life Technologies Corporation, Molecular Probes Detection Technologies, Attn: Business Development, 29851 Willow Creek Road, Eugene, OR 97402, USA, Tel: (541) 465-8300. Fax: (541) 335-0504.