Overview

Description

  • Nature
    Synthetic

Specifications

Our Abpromise guarantee covers the use of ab157523 in the following tested applications.

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

  • Applications

    Blocking

  • Form
    Liquid
  • Concentration information loading...

Preparation and Storage

  • Stability and Storage

    Shipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid freeze / thaw cycles.

    Constituent: PBS

General Info

  • Alternative names
    • EPO R
    • EPO-R
    • epor
    • EPOR_HUMAN
    • Erythropoietin receptor
    • Erythropoietin receptor precursor
    • MGC138358
    see all
  • Function
    Receptor for erythropoietin. Mediates erythropoietin-induced erythroblast proliferation and differentiation. Upon EPO stimulation, EPOR dimerizes triggering the JAK2/STAT5 signaling cascade. In some cell types, can also activate STAT1 and STAT3. May also activate the LYN tyrosine kinase.
    Isoform EPOR-T acts as a dominant-negative receptor of EPOR-mediated signaling.
  • Tissue specificity
    Erythroid cells and erythroid progenitor cells. Isoform EPOR-F is the most abundant form in EPO-dependent erythroleukemia cells and in late-stage erythroid progenitors. Isoform EPOR-S and isoform EPOR-T are the predominant forms in bone marrow. Isoform EPOR-T is the most abundant from in early-stage erythroid progenitor cells.
  • Involvement in disease
    Defects in EPOR are the cause of erythrocytosis familial type 1 (ECYT1) [MIM:133100]. ECYT1 is an autosomal dominant disorder characterized by increased serum red blood cell mass, elevated hemoglobin and hematocrit, hypersensitivity of erythroid progenitors to erythropoietin, erythropoietin low serum levels, and no increase in platelets nor leukocytes. It has a relatively benign course and does not progress to leukemia.
  • Sequence similarities
    Belongs to the type I cytokine receptor family. Type 1 subfamily.
    Contains 1 fibronectin type-III domain.
  • Domain
    The WSXWS motif appears to be necessary for proper protein folding and thereby efficient intracellular transport and cell-surface receptor binding.
    The box 1 motif is required for JAK interaction and/or activation.
    Contains 1 copy of a cytoplasmic motif that is referred to as the immunoreceptor tyrosine-based inhibitor motif (ITIM). This motif is involved in modulation of cellular responses. The phosphorylated ITIM motif can bind the SH2 domain of several SH2-containing phosphatases.
  • Post-translational
    modifications
    On EPO stimulation, phosphorylated on C-terminal tyrosine residues by JAK2. The phosphotyrosine motifs are also recruitment sites for several SH2-containing proteins and adapter proteins which mediate cell proliferation. Phosphorylation on Tyr-454 is required for PTPN6 interaction, Tyr-426 for PTPN11. Tyr-426 is also required for SOCS3 binding, but Tyr-454/Tyr-456 motif is the preferred binding site.
    Ubiquitinated by NOSIP; appears to be either multi-monoubiquitinated or polyubiquitinated. Ubiquitination mediates proliferation and survival of EPO-dependent cells.
  • Cellular localization
    Cell membrane and Secreted. Secreted and located to the cell surface.
  • Information by UniProt

References

ab157523 has not yet been referenced specifically in any publications.

Customer reviews and Q&As

This is our thinking right now, however we really cannot be 100% confident about this until we are able to clean the blot up somewhat. I would again recommend an immunizing peptide experiment to be 100% sure that these bands are specific.

I can understand you concern when using this. While it does seem that the antibodies are recognizing the correct bands, you do seem to be experiencing a number of non specific bands as well. In order to confidently identify the correct band of interest...

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Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"

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