Overview

  • Product name

  • Description

    Rabbit polyclonal to HLA-DPB1
  • Host species

    Rabbit
  • Tested applications

    Suitable for: WBmore details
  • Species reactivity

    Reacts with: Mouse, Rat, Human
  • Immunogen

    Recombinant full length protein corresponding to Human HLA-DPB1.
    Database link: P04440

  • Positive control

    • U937 and THP1 cell lysates; mouse spleen and thymus lysates.

Properties

  • Form

    Liquid
  • Storage instructions

    Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C long term. Avoid freeze / thaw cycle.
  • Storage buffer

    pH: 7.2
    Preservative: 0.05% Sodium azide
    Constituent: 99% PBS
  • Concentration information loading...
  • Purity

    Immunogen affinity purified
  • Purification notes

    ab193392 is affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen and the purity is > 95% (by SDS-PAGE).
  • Clonality

    Polyclonal
  • Isotype

    IgG
  • Research areas

Applications

Our Abpromise guarantee covers the use of ab193392 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
WB Use at an assay dependent concentration. Predicted molecular weight: 29 kDa.

Target

  • Function

    Binds peptides derived from antigens that access the endocytic route of antigen presenting cells (APC) and presents them on the cell surface for recognition by the CD4 T-cells. The peptide binding cleft accommodates peptides of 10-30 residues. The peptides presented by MHC class II molecules are generated mostly by degradation of proteins that access the endocytic route, where they are processed by lysosomal proteases and other hydrolases. Exogenous antigens that have been endocytosed by the APC are thus readily available for presentation via MHC II molecules, and for this reason this antigen presentation pathway is usually referred to as exogenous. As membrane proteins on their way to degradation in lysosomes as part of their normal turn-over are also contained in the endosomal/lysosomal compartments, exogenous antigens must compete with those derived from endogenous components. Autophagy is also a source of endogenous peptides, autophagosomes constitutively fuse with MHC class II loading compartments. In addition to APCs, other cells of the gastrointestinal tract, such as epithelial cells, express MHC class II molecules and CD74 and act as APCs, which is an unusual trait of the GI tract. To produce a MHC class II molecule that presents an antigen, three MHC class II molecules (heterodimers of an alpha and a beta chain) associate with a CD74 trimer in the ER to form a heterononamer. Soon after the entry of this complex into the endosomal/lysosomal system where antigen processing occurs, CD74 undergoes a sequential degradation by various proteases, including CTSS and CTSL, leaving a small fragment termed CLIP (class-II-associated invariant chain peptide). The removal of CLIP is facilitated by HLA-DM via direct binding to the alpha-beta-CLIP complex so that CLIP is released. HLA-DM stabilizes MHC class II molecules until primary high affinity antigenic peptides are bound. The MHC II molecule bound to a peptide is then transported to the cell membrane surface. In B-cells, the interaction between HLA-DM and MHC class II molecules is regulated by HLA-DO. Primary dendritic cells (DCs) also to express HLA-DO. Lysosomal microenvironment has been implicated in the regulation of antigen loading into MHC II molecules, increased acidification produces increased proteolysis and efficient peptide loading.
  • Sequence similarities

    Belongs to the MHC class II family.
    Contains 1 Ig-like C1-type (immunoglobulin-like) domain.
  • Cellular localization

    Cell membrane. Endoplasmic reticulum membrane. Golgi apparatus, trans-Golgi network membrane. Endosome membrane. Lysosome membrane. The MHC class II complex transits through a number of intracellular compartments in the endocytic pathway until it reaches the cell membrane for antigen presentation.
  • Information by UniProt
  • Database links

  • Alternative names

    • beta1 domain MHC class II HLA DPB antibody
    • class II histocompatibility antigen, DP(W4) beta chain antibody
    • class II HLA beta chain antibody
    • DP beta 1 chain antibody
    • DP(W4) beta chain antibody
    • DPB1 antibody
    • DPB1_HUMAN antibody
    • HLA class II histocompatibility antigen antibody
    • HLA class II histocompatibility antigen, DP beta 1 chain antibody
    • HLA class II histocompatibility antigen, DP(W4) beta chain antibody
    • HLA DP14-beta chain antibody
    • HLA-DP antibody
    • HLA-DP histocompatibility type, beta-1 subunit antibody
    • HLA-DP1B antibody
    • HLA-DPB antibody
    • HLA-DPB1 antibody
    • major histocompatibility complex class II antigen beta chain antibody
    • major histocompatibility complex, class II, DP beta 1 antibody
    • MHC class II antigen beta chain antibody
    • MHC class II antigen DP beta 1 chain antibody
    • MHC class II antigen DPB1 antibody
    • MHC class II antigen DPbeta1 antibody
    • MHC class II HLA-DP-beta-1 antibody
    • MHC class II HLA-DRB1 antibody
    • MHC HLA DPB1 antibody
    see all

Images

  • All lanes : Anti-HLA-DPB1 antibody (ab193392)

    Lane 1 : U937 cell lysate
    Lane 2 : THP1 cell lysate
    Lane 3 : mouse spleen lysate
    Lane 4 : mouse thymus lysate

    Predicted band size: 29 kDa

References

ab193392 has not yet been referenced specifically in any publications.

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