EPOR/Erythropoietin Receptor Active Protein | EPOR active protein

Human CellExp EPOR / Erythropoietin Receptor, human recombinant

Cat. Num. AAA844166

• Gene Names: EPOR; EPO-R
• Applications: SDS-Page
• Purity: >=92%
• Synonyms: EPOR/Erythropoietin Receptor; Human CellExp EPOR / Erythropoietin Receptor; human recombinant; EPOR; Erythropoietin Receptor.; EPOR active protein

• Host: HEK293 cells
• Purity/Purification: >=92%
• Form/Format: Lyophilized from 0.22 mum filtered solution in 50 mM tris, 100 mM glycine, pH 7.0. Normally Mannitol or Trehalose is added as protectants before lyophilization.; Appearance: Lyophilized
• Sequence Length: 508

• Applicable Applications for EPOR active protein: SDS-PAGE
• Solubility/Reconstitution Instructions: Centrifuge the vial prior to opening. Reconstitute in sterile PBS, pH 7.4 to a concentration of 50 ug/ml. Do not vortex. This solution can be stored at 2-8 degree C for up to 1 month. For extended storage, it is recommended to store at -20 degree C.
• Endotoxin Level: <1 EU/mug by LAL method
• Biological Activity: Measured by its ability to inhibit Epo-dependent proliferation of TF?1 human erythroleukemic cells. The ED50 for this effect is typically 2 - 6 ng/ml in the presence of 0.2 U/ml of rhEpo-Fc.
• Results: Measured by its ability to inhibit Epo-dependent proliferation of TF?1 human erythroleukemic cells. The ED50 for this effect is typically 2 - 6 ng/ml in the presence of 0.2 U/ml of rhEpo-Fc.
• Handling: Centrifuge the vial prior to opening.
• Preparation and Storage: At -20 degree C; Shelf Life: 12 months

Testing Data

Related Product Information for EPOR active protein

Background: Erythropoietin (EPO) is the major glycoprotein hormone regulator of mammalian erythropoiesis, and is produced by kidney and liver in an oxygen-dependent manner. The biological effects of EPO are mediated by the specific erythropoietin receptor (EPOR) on bone marrow erythroblasts, which transmits signals important for both proliferation and differentiation along the erythroid lineage. EPOR is a type 1 single-transmembrane cytokine receptor, and belongs to the homodimerizing subclass which functions as ligand-induced or ligand-stabilized homodimers. EPOR pre-exists as dimers which upon binding of a 34 kDa ligand erythropoietin (EPO), changes its homodimerized state. These conformational changes result in the autophosphorylation of Jak2 kinases that are pre-associated with the receptor. Erythropoietin is necessary to maintain endothelial cells and to promote tumor angiogenesis, hence the dysregulation of EpoR may affect the growth of certain tumors. EpoR signaling prevents neuronal death and ischemic injury.

Product Categories/Family for EPOR active protein

Proteins and Enzymes; Human cell expressed recombinant proteinsCytokines; Growth Factors & Hormones; Human cell expressed recombinant proteinsProteins and Enzymes; Cytokines; Growth Factors & Hormones; Cytokines & Growth Factors (A-Z) Proteins and Enzymes

NCBI and Uniprot Product Information

• NCBI GI #: 4503591
• NCBI GeneID: 2057
• NCBI Accession #: NP_000112.1
• NCBI GenBank Nucleotide #: NM_000121.3
• UniProt Accession #: P19235; Q15443; Q2M205; B2RCG4
• Molecular Weight: This protein is fused with Fc fragment of human IgG1 at the C-terminus, has a calculated MW of 50.1 kDa. The predicted N-terminus is Ala 25. DTT-reduced Protein migrates as 55-60 kDa due to glycosylation.
• NCBI Official Full Name: erythropoietin receptor
• NCBI Official Synonym Full Names: erythropoietin receptor
• NCBI Official Symbol: EPOR
• NCBI Official Synonym Symbols: EPO-R
• NCBI Protein Information: erythropoietin receptor
• UniProt Protein Name: Erythropoietin receptor
• Protein Family: Erythropoietin receptor
• UniProt Gene Name: EPOR
• UniProt Synonym Gene Names: EPO-R
• UniProt Entry Name: EPOR_HUMAN

NCBI Description

This gene encodes the erythropoietin receptor which is a member of the cytokine receptor family. Upon erythropoietin binding, this receptor activates Jak2 tyrosine kinase which activates different intracellular pathways including: Ras/MAP kinase, phosphatidylinositol 3-kinase and STAT transcription factors. The stimulated erythropoietin receptor appears to have a role in erythroid cell survival. Defects in the erythropoietin receptor may produce erythroleukemia and familial erythrocytosis. Dysregulation of this gene may affect the growth of certain tumors. Alternate splicing results in multiple transcript variants.[provided by RefSeq, May 2010]

Uniprot Description

EPOR: erythropoietin receptor: a member of the cytokine receptor family. Mediates erythropoietin-induced erythroblast proliferation, differentiation and survival. Upon EPO stimulation, EPOR dimerizes triggering the JAK2/STAT5 signaling cascade. In some cell types, can also activate STAT1 and STAT3. Forms homodimers on EPO stimulation. Tyrosine-phosphorylated EpoR may bind several SH2 domain-containing proteins including LYN, the adapter protein APS, SHP-1, SHP-2, JAK2, PI3 kinases, STAT5A/B, SOCS3, and CRKL. Defects in the erythropoietin receptor may produce erythroleukemia and familial erythrocytosis. Three alternatively-spliced isoforms have been described. Isoform EPOR-T, missing the cytoplasmic tail, acts as a dominant-negative receptor of EPOR-mediated signaling.

Protein type: Membrane protein, integral; Receptor, cytokine

Chromosomal Location of Human Ortholog: 19p13.3-p13.2

Cellular Component: integral to plasma membrane; extracellular region

Molecular Function: identical protein binding; protein binding; erythropoietin receptor activity

Biological Process: heart development; decidualization; brain development; signal transduction

Disease: Erythrocytosis, Familial, 1