Revision 3
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

Application Dilution
Western Blotting 1:1000
Immunofluorescence (Frozen) 1:200 - 1:400
Immunofluorescence (Immunocytochemistry) 1:3200 - 1:6400
Flow Cytometry (Fixed/Permeabilized) 1:100 - 1:400

Storage

Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/mL BSA, 50% glycerol, and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody.

For a carrier free (BSA and azide free) version of this product see product #77137.

Specificity / Sensitivity

β2-microglobulin (E8G2O) Rabbit mAb 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).

Western Blot Buffer

IMPORTANT: For western blots, incubate membrane with diluted primary antibody in 5% w/v BSA, 1X TBS, 0.1% Tween® 20 at 4°C with gentle shaking, overnight.

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 3
#64046

β2-microglobulin (E8G2O) Rabbit mAb

Western Blotting Image 1: β2-microglobulin (E8G2O) Rabbit mAb 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.
Immunofluorescence Image 1: β2-microglobulin (E8G2O) Rabbit mAb 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.
Immunofluorescence Image 1: β2-microglobulin (E8G2O) Rabbit mAb 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).
Flow Cytometry Image 1: β2-microglobulin (E8G2O) Rabbit mAb 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.
Flow Cytometry Image 2: β2-microglobulin (E8G2O) Rabbit mAb 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.