Revision 1
Cell Signaling Technology

Orders: 877-616-CELL (2355) [email protected]

Support: 877-678-TECH (8324)

Web: [email protected] cellsignal.com

3 Trask LaneDanversMassachusetts01923USA
For Research Use Only. Not for Use in Diagnostic Procedures.
Applications:

WB, IF-F, IF-IC, FC-FP

REACTIVITY:

M

SENSITIVITY:

Endogenous

MW (kDa):

12

Source/Isotype:

Rabbit IgG

UniProt ID:

#P01887

Entrez-Gene Id:

12010

Product Information

Product Usage Information

This product is the carrier free version of product #64046. All data were generated using the same antibody clone in the standard formulation which contains BSA and glycerol.

This formulation is ideal for use with technologies requiring specialized or custom antibody labeling, including fluorophores, metals, lanthanides, and oligonucleotides. It is not recommended for ChIP, ChIP-seq, CUT&RUN or CUT&Tag assays. If you require a carrier free formulation for chromatin profiling, please contact us. Optimal dilutions/concentrations should be determined by the end user.

Formulation

Supplied in 1X PBS, BSA and Azide Free.

For standard formulation of this product see product #64046

Storage

Store at -20°C. This product will freeze at -20°C so it is recommended to aliquot into single-use vials to avoid multiple freeze/thaw cycles. A slight precipitate may be present and can be dissolved by gently vortexing. This will not interfere with antibody performance.

Specificity / Sensitivity

β2-microglobulin (E8G2O) Rabbit mAb (BSA and Azide Free) recognizes endogenous levels of total β2-microglobulin protein.

Species Reactivity:

Mouse

Source / Purification

Monoclonal antibody is produced by immunizing animals with mouse β2-microglobulin recombinant protein and reacts with an epitope near the carboxy terminus.

Background

β2-microglobulin (B2M) is a principal component of the Major Histocompatibility Complex (MHC) class I molecule, a ternary membrane protein complex that displays fragments derived from proteolyzed cytosolic proteins on the surface of cells for recognition by the surveillance immune system (1,2). As an integral component of the MHC class I complex, β2-microglobulin plays a critically important role in immune system function (3). It has important relevance to cancer biology research; for example, research studies have shown that nearly one-third of diffuse large B cell lymphomas contain mutations that inactivate β2-microglobulin gene function, thereby allowing tumor cells to escape immune detection (4). In addition, β2-microglobulin has been identified as an amyloid preprotein with collagen-binding affinity (5); its accumulation in osteoarthritic lesions of long-term dialysis patients is reportedly a contributing factor to the condition known as amyloid osteoarthropathy (6).

  1. Krangel, M.S. et al. (1979) Cell 18, 979-91.
  2. Collins, E.J. et al. (1995) Proc Natl Acad Sci USA 92, 1218-21.
  3. Marx, J.I. (1974) Science 185, 428-9.
  4. Challa-Malladi, M. et al. (2011) Cancer Cell 20, 728-40.
  5. Gorevic, P.D. et al. (1985) J Clin Invest 76, 2425-9.
  6. Ohashi, K. (2001) Pathol Int 51, 1-10.

Species Reactivity

Species reactivity is determined by testing in at least one approved application (e.g., western blot).

Applications Key

WB: Western Blotting IF-F: Immunofluorescence (Frozen) IF-IC: Immunofluorescence (Immunocytochemistry) FC-FP: Flow Cytometry (Fixed/Permeabilized)

Cross-Reactivity Key

H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected

Trademarks and Patents

Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

Limited Uses

Except as otherwise expressly agreed in a writing signed by a legally authorized representative of CST, the following terms apply to Products provided by CST, its affiliates or its distributors. Any Customer's terms and conditions that are in addition to, or different from, those contained herein, unless separately accepted in writing by a legally authorized representative of CST, are rejected and are of no force or effect.

Products are labeled with For Research Use Only or a similar labeling statement and have not been approved, cleared, or licensed by the FDA or other regulatory foreign or domestic entity, for any purpose. Customer shall not use any Product for any diagnostic or therapeutic purpose, or otherwise in any manner that conflicts with its labeling statement. Products sold or licensed by CST are provided for Customer as the end-user and solely for research and development uses. Any use of Product for diagnostic, prophylactic or therapeutic purposes, or any purchase of Product for resale (alone or as a component) or other commercial purpose, requires a separate license from CST. Customer shall (a) not sell, license, loan, donate or otherwise transfer or make available any Product to any third party, whether alone or in combination with other materials, or use the Products to manufacture any commercial products, (b) not copy, modify, reverse engineer, decompile, disassemble or otherwise attempt to discover the underlying structure or technology of the Products, or use the Products for the purpose of developing any products or services that would compete with CST products or services, (c) not alter or remove from the Products any trademarks, trade names, logos, patent or copyright notices or markings, (d) use the Products solely in accordance with CST Product Terms of Sale and any applicable documentation, and (e) comply with any license, terms of service or similar agreement with respect to any third party products or services used by Customer in connection with the Products.

Revision 1
#77137

β2-microglobulin (E8G2O) Rabbit mAb (BSA and Azide Free)

Western Blotting Image 1: β2-microglobulin (E8G2O) Rabbit mAb (BSA and Azide Free) Expand Image
Western blot analysis of extracts from various cell lines and tissues using β2-microglobulin (E8G2O) Rabbit mAb (upper) or GAPDH (D16H11) XP® Rabbit mAb #5174 (lower). Negative expression of β2-microglobulin protein in CRISPR/Cas9 β2-microglobulin knockout (KO) NIH/3T3 cells is consistent with the predicted expression pattern. Data were generated using the standard formulation of this product.
Immunofluorescence Image 1: β2-microglobulin (E8G2O) Rabbit mAb (BSA and Azide Free) Expand Image
Confocal immunofluorescent analysis of fixed frozen spleen from wild-type (left) or Abb/B2M knockout mouse (model #4080) spleen (right) labeled with β2-microglobulin (E8G2O) Rabbit mAb (red). Free secondary binding sites were then blocked with Rabbit (DA1E) mAb IgG XP® Isotype Control #3900 prior to co-labeling with CD4 (RM4-5) Rat mAb (FITC Conjugate) #96127 (green) and CD45 (D3F8Q) Rabbit mAb (Alexa Fluor® 647 Conjugate) #81143 (blue). Knockout mice from Taconic Biosciences, Inc. Data were generated using the standard formulation of this product.
Immunofluorescence Image 1: β2-microglobulin (E8G2O) Rabbit mAb (BSA and Azide Free) Expand Image
Confocal immunofluorescent analysis of RAW 264.7 cells (left, high-expressing), NIH/3T3 cells (middle, low-expressing), and NIH/3T3 KO cells (right, negative-expressing) using β2-microglobulin (E8G2O) Rabbit mAb (green), DyLight 650 Phalloidin #12956 (red), and DAPI #4083 (blue). Data were generated using the standard formulation of this product.
Flow Cytometry Image 1: β2-microglobulin (E8G2O) Rabbit mAb (BSA and Azide Free) Expand Image
Flow cytometric analysis of fixed/permeabilized RAW 264.7 cells using β2-microglobulin (E8G2O) Rabbit mAb (solid line) or concentration-matched Rabbit (DA1E) mAb IgG XP® Isotype Control #3900 (dashed line). Anti-rabbit IgG F(ab')2 Fragment (Alexa Fluor® 488 Conjugate) #4412 was used as a secondary antibody. Data were generated using the standard formulation of this product.
Flow Cytometry Image 2: β2-microglobulin (E8G2O) Rabbit mAb (BSA and Azide Free) Expand Image
Flow cytometric analysis of fixed/permeabilized CRISPR/Cas9 β2-microglobulin knockout (KO) NIH/3T3 cells (blue, negative) and NIH/3T3 cells (green, positive) using β2-microglobulin (E8G2O) Rabbit mAb (solid lines) or concentration-matched Rabbit (DA1E) mAb IgG XP® Isotype Control #3900 (dashed lines). Anti-rabbit IgG (H+L), F(ab')2 Fragment (Alexa Fluor® 488 Conjugate) #4412 was used as a secondary antibody. Data were generated using the standard formulation of this product.