Thermo Fisher Scientific MHC Class II (I-Ab) VHH-8His-Cys-tag Recombinant Alpaca Monoclonal Antibody (SAA1323)

Applications

Tested Dilution

Publications

Immunocytochemistry (ICC/IF)

Assay-dependent

-

Flow Cytometry (Flow)

Assay-dependent

-

Product Specifications

Species Reactivity

Mouse

Host/Isotype

Alpaca / VHH

Expression System

CHO cells

Class

Recombinant Monoclonal

Type

Antibody

Clone

SAA1323

Immunogen

Recombinant Mouse H2-Ab1/MHCII.

Conjugate

Unconjugated Unconjugated Unconjugated

Form

Liquid

Concentration

1 mg/mL

Purification

Metal-chelate chromatography

Storage buffer

PBS

Contains

no preservative

Storage conditions

Store at 4°C short term. For long term storage, store at -20°C, avoiding freeze/thaw cycles.

Target Information

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.

HLA and MHC antibodies play a significant role in Immunopeptidomics, facilitating the identification and characterization of neoantigens through high-performance liquid chromatography coupled to tandem Mass Spectrometry.

For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.