This EPOR Sandwich ELISA Kit, Ready-To-Use is an in-vitro enzyme-linked immunosorbent assay for the measurement of samples in rat serum, plasma, tissue homogenates or other biological fluids..
Applications
ELISA
Reactivity
Rat
Sensitivity
5.8pg/mL
Detection Limit
15.6-1000pg/mL
Note
STRICTLY FOR FURTHER SCIENTIFIC RESEARCH USE ONLY (RUO). MUST NOT TO BE USED IN DIAGNOSTIC OR THERAPEUTIC APPLICATIONS.
Product Properties
Storage Instruction
The whole kit may be stored at-20°C for up to 12 months from receipt. An unopened kit may be stored in the fridge at 2-8°C for up to 6 months. Once opened store individual kit contents according to components table provided with the kit.
serum, plasma, tissue homogenates or other biological fluids.
Additional Info
Tissue Specificity
Isoform EPOR-F: Expressed in bone marrow, spleen and eythroleukemia cell lines. Isoform EPOR-S: Expressed in bone marrow, spleen and eythroleukemia cell lines.
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-455 is required for PTPN6 interaction, Tyr-425 for PTPN11. Tyr-425 is also required for SOCS3 binding, but Tyr-453/Tyr-455 motif is the preferred binding site. Ubiquitinated by the ECS(SOCS2) complex following ligand-binding and phosphorylation by JAK2, leading to its degradation by the proteasome. Regulation by the ECS(SOCS2) complex acts as a negative feedback loop of erythropoietin-mediated signaling pathway. Ubiquitination at Lys-280 mediates receptor internalization, whereas ubiquitination at Lys-452 promotes trafficking of activated receptors to the lysosomes for degradation. Ubiquitinated by NOSIP.appears to be either multi-monoubiquitinated or polyubiquitinated. Ubiquitination mediates proliferation and survival of EPO-dependent cells.
Function
Receptor for erythropoietin, which 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.
