Overview

  • Product name

    Anti-HLA-DR antibody [LN3], prediluted (PE/Cy7 ®)
    See all HLA-DR primary antibodies
  • Description

    Mouse monoclonal [LN3] to HLA-DR, prediluted (PE/Cy7 ®)
  • Host species

    Mouse
  • Conjugation

    PE/Cy7 ®. Ex: 496nm, Em: 774nm
  • Tested applications

    Suitable for: Flow Cytmore details
  • Species reactivity

    Reacts with: Human
  • Immunogen

    The details of the immunogen for this antibody are not available.

  • Positive control

    • Normal Human peripheral blood cells.
  • General notes

    This Cy7 tandem dye is sensitive to photoinduced oxidation. Protect this vial from light during storage, handling & experimental procedures.

Properties

  • Form

    Liquid
  • Storage instructions

    Shipped at 4°C. Store at +4°C.
  • Storage buffer

    pH: 7.20
    Preservative: 0.09% Sodium azide
    Constituents: 99% PBS, 0.2% BSA
  • Concentration information loading...
  • Purity

    Protein G purified
  • Clonality

    Monoclonal
  • Clone number

    LN3
  • Isotype

    IgG2b
  • Light chain type

    kappa
  • Research areas

Applications

Our Abpromise guarantee covers the use of ab155347 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
Flow Cyt Use 5µl for 106 cells.

ab154458 - Mouse monoclonal IgG2b, is suitable for use as an isotype control with this antibody.

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 an 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 miroenvironment 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.
  • Post-translational
    modifications

    Ubiquitinated by MARCH1 or MARCH8 at Lys-244 leading to down-regulation of MHC class II. When associated with ubiquitination of the beta subunit of HLA-DR: HLA-DRB4 'Lys-254', the down-regulation of MHC class II may be highly effective.
  • Cellular localization

    Cell membrane. Endoplasmic reticulum membrane. Golgi apparatus > trans-Golgi network membrane. Endosome membrane. Lysosome membrane. Late endosome 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

    • DR alpha chain antibody
    • DR alpha chain precursor antibody
    • DRA_HUMAN antibody
    • DRB1 antibody
    • DRB4 antibody
    • Histocompatibility antigen HLA DR alpha antibody
    • HLA class II histocompatibility antigen antibody
    • HLA class II histocompatibility antigen DR alpha chain antibody
    • HLA DR1B antibody
    • HLA DR3B antibody
    • HLA DRA antibody
    • HLA DRA1 antibody
    • HLA DRB1 antibody
    • HLA DRB3 antibody
    • HLA DRB4 antibody
    • HLA DRB5 antibody
    • HLA-DRA antibody
    • HLADR4B antibody
    • HLADRA1 antibody
    • HLADRB antibody
    • Major histocompatibility complex class II DR alpha antibody
    • Major histocompatibility complex class II DR beta 1 antibody
    • Major histocompatibility complex class II DR beta 3 antibody
    • Major histocompatibility complex class II DR beta 4 antibody
    • Major histocompatibility complex class II DR beta 5 antibody
    • MGC117330 antibody
    • MHC cell surface glycoprotein antibody
    • MHC class II antigen DRA antibody
    • MHC II antibody
    • MLRW antibody
    see all

Images

  • Flow cytometric analysis of normal Human peripheral blood cells with staining buffer (autofluorescence) (open histogram) or ab155347 (filled histogram). Cells in the lymphocyte (right) or monocyte (left) gate were used for analysis.

References

ab155347 has not yet been referenced specifically in any publications.

Customer reviews and Q&As

There are currently no Customer reviews or Questions for ab155347.
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