MHC Class II I-Ab Monoclonal Antibody (AF6-120.1), FITC, eBioscience™, Invitrogen™

Mouse Monoclonal Antibody

Product Code	Brand	Quantity
15546556	Invitrogen 11-5320-80	25 μg
15556556	Invitrogen™ 11-5320-82	100 μg

Description

Description: This AF6-120.1 monoclonal antibody reacts with the mouse MHC Class II I-Ab alloantigen of H-2b bearing mouse strains, including C57Bl/6 and 129. This cell surface molecule is involved in antigen presentation to T cells expressing CD3/TCR and CD4. The AF6-120.1 antibody crossreacts with H-2k and H-2u haplotypes. However, reactivity to other haplotypes (i.e., d, f, g7, p, q, r, and s) has not been observed. Applications Reported: This AF6-120.1 antibody has been reported for use in flow cytometric analysis. Applications Tested: This AF6-120.1 antibody has been tested by flow cytometric analysis of mouse splenocytes. This can be used at less than or equal to 1 μg per test. A test is defined as the amount (μg) of antibody that will stain a cell sample in a final volume of 100 μL. Cell number should be determined empirically but can range from 10^5 to 10^8 cells/test. It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest. Excitation: 488 nm; Emission: 520 nm; Laser: Blue Laser. Filtration: 0.2 μm post-manufacturing filtered.

I-Ab (H2-Ab1, histocompatibility 2, class II antigen A, beta 1) is an MHC class II heterodimer molecule of non-covalently associated alpha (31-34 kDa) and beta (26-29 kDa) chains. Major histocompatibility complex class II antigen presentation requires the participation of lysosomal proteases in two convergent processes. First, the antigens endocytosed by the antigen presenting cells must be broken down into antigenic peptides. Second, class II molecules are synthesized with their peptide-binding site blocked by invariant chain (Ii), and they aquire the capacity to bind antigens only after Ii has been degraded in the compartments where peptides reside. MHC class II molecules present exogenously derived antigen to CD4+ T lymphocytes, which are usually T helper cells. CD4 interacts with non-polymorphic residues of MHC class II. H2-Ab1 heterodimer chains alpha (DQA) and beta (DQB) are both anchored in the membrane. H2-Ab1 plays a central role in the immune system by presenting peptides derived from extracellular proteins. Class II molecules are expressed in antigen presenting cells (APC: B lymphocytes, dendritic cells, macrophages). The beta chain contains 6 exons. Exon one encodes the leader peptide, exons 2 and 3 encode the two extracellular domains, exon 4 encodes the transmembrane domain and exon 5 encodes the cytoplasmic tail. Within the DQ molecule both the alpha chain and the beta chain contain the polymorphisms specifying the peptide binding specificities, resulting in up to 4 different molecules. Typing for polymorphisms is routinely done for bone marrow transplantation.

Specifications

• Antigen: MHC Class II I-Ab
• Concentration: 0.5 mg/mL
• Classification: Monoclonal
• Form: Liquid
• Regulatory Status: RUO
• Gene ID (Entrez): 14961
• Isotype: IgG2a κ
• Purification Method: Affinity chromatography
• Product Type: Antibody

• Clone: AF6-120.1
• Applications: Flow Cytometry
• Conjugate: FITC
• Host Species: Mouse
• Target Species: Mouse
• Gene Symbols: H2-Ab1
• Primary or Secondary: Primary
• Content And Storage: 4° C, store in dark, DO NOT FREEZE!
• Gene: H2-Ab1

For Research Use Only.