Rabbit B2M Polyclonal Antibody | anti-B2M antibody

B2M Antibody

Cat. Num. AAA9607114

• Gene Names: B2M; IMD43
• Reactivity: Human, Mouse, Rat
• Applications: Western Blot, Immunohistochemistry, ELISA
• Purity: The antiserum was purified by peptide affinity chromatography using SulfoLink Coupling Resin.
• Synonyms: B2M; Polyclonal Antibody; B2M Antibody; B2MG_HUMAN; Beta 2 microglobin; Beta 2 microglobulin; Beta 2 microglobulin precursor; Beta chain of mhc class 1 proteins; Beta chain of MHC class I molecules; Beta-2-microglobulin form pI 5.3; CDABP0092; Hdcma22p; anti-B2M antibody

• Host: Rabbit
• Reactivity: Human, Mouse, Rat
• Clonality: Polyclonal
• Isotype: IgG
• Specificity: B2M antibody detects endogenous levels of total B2M
• Purity/Purification: The antiserum was purified by peptide affinity chromatography using SulfoLink Coupling Resin.
• Form/Format: Liquid; Phosphate buffered saline, pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
• Concentration: 1mg/ml (varies by lot)
• Sequence Length: 119

• Applicable Applications for anti-B2M antibody: Western Blot (WB), Immunohistochemistry (IHC), ELISA (EIA)
• Application Notes: WB: 1:500-1:2000; IHC: 1:50-1:200
• Immunogen: A synthesized peptide derived from human B2M
• Subcellular Location: Secreted. Detected in serum and urine.
• Predicted Cross Reactivity: Pig, Bovine, Horse, Sheep, Rabbit
• Similarity: Pig (100%), Bovine (100%), Horse (100%), Sheep (100%), Rabbit (92%)
• Conjugation: Unconjugated
• Preparation and Storage: Store at -20 degree C. Stable for 12 months from date of receipt.

Immunohistochemistry (IHC)

(MBS9607114 at 1/100 staining Human uterus tissue by IHC-P. The sample was formaldehyde fixed and a heat mediated antigen retrieval step in citrate buffer was performed. The sample was then blocked and incubated with the antibody for 1.5 hours at 22 degree C. An HRP conjugated goat anti-rabbit antibody was used as the secondary.)

Western Blot (WB)

(Western blot analysis of extracts from 293, using B2M Antibody. Lane 1 was treated with the antigen-specific peptide.)

Western Blot (WB)

(Western blot analysis of Hela whole cell lysates, using B2M Antibody. The lane on the left is treated with the antigen-specific peptide.)

Related Product Information for anti-B2M antibody

Description: Beta2-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, beta2-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 beta2-microglobulin gene function, thereby allowing tumor cells to escape immune detection (4). In additon, beta2-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).
Function: Component of the class I major histocompatibility complex (MHC). Involved in the presentation of peptide antigens to the immune system. Exogenously applied M.tuberculosis EsxA or EsxA-EsxB (or EsxA expressed in host) binds B2M and decreases its export to the cell surface (total protein levels do not change), probably leading to defects in class I antigen presentation (PubMed:25356553).
Subunit Structure: Heterodimer of an alpha chain and a beta chain. Beta-2-microglobulin is the beta-chain of major histocompatibility complex class I molecules. Polymers of beta 2-microglobulin can be found in tissues from patients on long-term hemodialysis. B2M alone (not in complex with HLA-I) interacts with M.tuberculosis EsxA (ESAT-6) and an EsxA-EsxB (CFP-10) complex; the tripartite complex can be detected in the host endoplasmic reticulum (PubMed:25356553). The B2M-EsxA complex can be detected in patients with pleural tuberculosis and is stable from pH 4.0 to 8.0 and in the presence of 2M NaCl (PubMed:25356553).
Post-translational Modifications: Glycation of Ile-21 is observed in long-term hemodialysis patients.
Similarity: Belongs to the beta-2-microglobulin family.

NCBI and Uniprot Product Information

• NCBI GI #: 4757826
• NCBI GeneID: 567
• NCBI Accession #: NP_004039.1
• NCBI GenBank Nucleotide #: NM_004048.3
• UniProt Accession #: P61769; P01884; Q540F8; Q6IAT8; Q9UCK0; Q9UD48; Q9UDF4
• Molecular Weight: Observed: 14 kDa; Predicted: 14 kDa
• NCBI Official Full Name: beta-2-microglobulin
• NCBI Official Synonym Full Names: beta-2-microglobulin
• NCBI Official Symbol: B2M
• NCBI Official Synonym Symbols: IMD43
• NCBI Protein Information: beta-2-microglobulin
• UniProt Protein Name: Beta-2-microglobulin
• Protein Family: Beta-2-microglobulin
• UniProt Gene Name: B2M

NCBI Description

This gene encodes a serum protein found in association with the major histocompatibility complex (MHC) class I heavy chain on the surface of nearly all nucleated cells. The protein has a predominantly beta-pleated sheet structure that can form amyloid fibrils in some pathological conditions. The encoded antimicrobial protein displays antibacterial activity in amniotic fluid. A mutation in this gene has been shown to result in hypercatabolic hypoproteinemia.[provided by RefSeq, Aug 2014]

Uniprot Description

Component of the class I major histocompatibility complex (MHC). Involved in the presentation of peptide antigens to the immune system. Exogenously applied M.tuberculosis EsxA or EsxA-EsxB (or EsxA expressed in host) binds B2M and decreases its export to the cell surface (total protein levels do not change), probably leading to defects in class I antigen presentation (PubMed:25356553).