Exbio — Research products — Antibodies — CD and related antigens — Anti-Hu CD79a Alexa Fluor<sup>®</sup> 647

Anti-Hu CD79a Alexa Fluor^® 647

Regulatory status

RUO

Antigen

CD79a

Clone

HM57

Format

Alexa Fluor^® 647

Reactivity

Chicken, Rabbit, Opossum, Guinea pig, Horse, Cow, Pig, Mouse, Rat, Human

Application

FC (QC tested), IHC(F), IHC(P)

Excitation laser

red (633 nm)

Variant

100 tests

A6-530-T100

In stock

242.00 USD

Variant

100 tests

A6-530-T100

In stock

242.00 USD

Contact distributor

Product details

Description

Images

References

SDS download

Isotype

Mouse IgG1

Specificity

The antibody HM57 interacts with intracellular domain of CD79a (Ig alpha), a 40-45 kDa subunit of B cell antigen-specific receptor (BCR) and its early developmental forms.

Workshop

HLDA V: WS Code BC cB018; HLDA VI: WS Code BP 193; HLDA VI: WS Code BP 89; HLDA VI: WS Code B B103; HLDA VI: WS Code B CD79.4

Application

FC (QC tested), IHC(F), IHC(P)

Application details

Flow cytometry: The reagent is designed for analysis of human blood cells using 4 μl reagent / 100 μl of whole blood or 10⁶ cells in a suspension. The content of a vial (0.4 ml) is sufficient for 100 tests. Intracellular staining.

Reactivity

Chicken, Rabbit, Opossum, Guinea pig, Horse, Cow, Pig, Mouse, Rat, Human

Immunogen

Synthetic peptide corresponding to amino acids 202-216 of human CD79a

Preparation

Purified antibody is conjugated with Alexa Fluor^® 647 NHS ester under optimum conditions and unconjugated antibody and free fluorochrome are removed by size-exclusion chromatography.

Formulation

Stabilizing phosphate buffered saline (PBS), pH 7.4, 15 mM sodium azide

Storage and handling

Store at 2-8°C. Protect from prolonged exposure to light. Do not freeze.

The product is intended For Research Use Only. Diagnostic or therapeutic applications are strictly forbidden. Products shall not be used for resale or transfer to third parties either as a stand-alone product or as a manufacture component of another product without written consent of EXBIO Praha, a.s. EXBIO Praha, a.s. will not be held responsible for patent infringement or any other violations of intellectual property rights that may occur with the use of the products. Orders for all products are accepted subject to the Term and Conditions available at www.exbio.cz. EXBIO, EXBIO Logo, and all other trademarks are property of EXBIO Praha, a.s.

Alexa Fluor^®, Pacific Blue™ and Pacific Orange™ are registered trademarks of Life Technologies Corporation.

This product is provided under an intellectual property license from Life Technologies Corporation. The transfer of this product is conditioned on the buyer using the purchased product solely in research conducted by the buyer, excluding contract research or any fee for service research, and the buyer must not (1) use this product or its components for (a) diagnostic, therapeutic or prophylactic purposes; (b) testing, analysis or screening services, or information in return for compensation on a per-test basis; or (c) manufacturing or quality assurance or quality control, and/or (2) sell or transfer this product or its components for resale, whether or not resold for use in research. For information on purchasing a license to this product for purposes other than as described above, contact Life Technologies Corporation, 5781 Van Allen Way, Carlsbad, CA 92008 USA or outlicensing@lifetech.com.

Other names

BCR alpha, Ig-alpha, MB-1, IGA

Antigen description

CD79a (Ig alpha, MB1) forms disulfide-linked heterodimer with CD79b (Ig beta). They both are transmembrane proteins with extended cytoplasmic domains containing immunoreceptor tyrosine activation motives (ITAMs), and together with cell surface immunoglobulin they constitute B-cell antigen-specific receptor (BCR). CD79a and b are the first components of BCR that are expressed developmentally. They appear on pro-B cells in association with the endoplasmic reticulum chaperone calnexin. Subsequently, in pre-B cells, CD79 heterodimer is associated with lambda5-VpreB surrogate immunoglobulin and later with antigen-specific surface immunoglobulins. At the plasma cell stage, CD79a is present as an intracellular component. CD79a/b complex interacts with Src-family tyrosine kinase Lyn, which phosphorylates its cytoplasmic ITAM motives to form docking sites for downstream signaling.

Entrez Gene ID 973

UniProt ID P11912

Flow cytometry intracellular staining pattern of human peripheral whole blood stained using anti-human CD79a (HM57) Alexa Fluor® 647 antibody (4 μl reagent / 100 μl of peripheral whole blood).

Flow cytometry multicolor surface staining pattern of human lymphocytes using anti-human CD19 (LT19) PE antibody (10 μl reagent / 100 μl of peripheral whole blood) and intracellular staining of human lymphocytes using anti-human CD79a (HM57) Alexa Fluor® 647 antibody (4 μl reagent / 100 μl of peripheral whole blood).

Separation of human CD79a positive B cells (red-filled) from neutrophil granulocytes (black-dashed) in flow cytometry analysis (intracellular staining) of human peripheral whole blood stained using anti-human CD79a (HM57) Alexa Fluor® 647 antibody (4 μl reagent / 100 μl of peripheral whole blood).

General references:

Fuentes-Pananá EM, Bannish G, Karnell FG, Treml JF, Monroe JG: Analysis of the individual contributions of Igalpha (CD79a)- and Igbeta (CD79b)-mediated tonic signaling for bone marrow B cell development and peripheral B cell maturation. J Immunol. 2006 Dec 1;177(11):7913-22.
PubMed

Fuentes-Pananá EM, Bannish G, van der Voort D, King LB, Monroe JG: Ig alpha/Ig beta complexes generate signals for B cell development independent of selective plasma membrane compartmentalization. J Immunol. 2005 Feb 1;174(3):1245-52.
PubMed

Fuentes-Pananá EM, Bannish G, Shah N, Monroe JG: Basal Igalpha/Igbeta signals trigger the coordinated initiation of pre-B cell antigen receptor-dependent processes. J Immunol. 2004 Jul 15;173(2):1000-11.
PubMed

Pike KA, Iacampo S, Friedmann JE, Ratcliffe MJ: The cytoplasmic domain of Ig alpha is necessary and sufficient to support efficient early B cell development. J Immunol. 2004 Feb 15;172(4):2210-8.
PubMed

Bannish G, Fuentes-Pananá EM, Cambier JC, Pear WS, Monroe JG: Ligand-independent signaling functions for the B lymphocyte antigen receptor and their role in positive selection during B lymphopoiesis. J Exp Med. 2001 Dec 3;194(11):1583-96.
PubMed

Product specific references:

Mason DY, Cordell JL, Brown MH, Borst J, Jones M, Pulford K, Jaffe E, Ralfkiaer E, Dallenbach F, Stein H, et al: CD79a: a novel marker for B-cell neoplasms in routinely processed tissue samples. Blood. 1995 Aug 15;86(4):1453-9.
PubMed

Jones M, Cordell JL, Beyers AD, Tse AG, Mason DY: Detection of T and B cells in many animal species using cross-reactive anti-peptide antibodies. J Immunol. 1993 Jun 15;150(12):5429-35.
PubMed

van Noesel CJ, van Lier RA, Cordell JL, Tse AG, van Schijndel GM, de Vries EF, Mason DY, Borst J: The membrane IgM-associated heterodimer on human B cells is a newly defined B cell antigen that contains the protein product of the mb-1 gene. J Immunol. 1991 Jun 1;146(11):3881-8.
PubMed

Mason DY, van Noesel CJ, Cordell JL, Comans-Bitter WM, Micklem K, Tse AG, van Lier RA, van Dongen JJ: The B29 and mb-1 polypeptides are differentially expressed during human B cell differentiation. Eur J Immunol. 1992 Oct;22(10):2753-6.
PubMed

Faldyna M, Samankova P, Leva L, Cerny J, Oujezdska J, Rehakova Z, Sinkora J: Cross-reactive anti-human monoclonal antibodies as a tool for B-cell identification in dogs and pigs. Vet Immunol Immunopathol. 2007 Sep 15;119(1-2):56-62.
PubMed

Mason DY, Cordell JL, Tse AG, van Dongen JJ, van Noesel CJ, Micklem K, Pulford KA, Valensi F, Comans-Bitter WM, Borst J, et al.: The IgM-associated protein mb-1 as a marker of normal and neoplastic B cells. J Immunol. 1991 Dec 1;147(11):2474-82.
PubMed