IL-3R alpha/CD123 Protein, Human, Recombinant (His)

IL-3R alpha/CD123 Protein, Human, Recombinant (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 34.5 kDa and the accession number is P26951-1.

IL-3R alpha/CD123 Protein, Human, Recombinant (His)

パッケージサイズ	在庫状況	単価(税別)
100 μg	在庫あり	￥ 88,500
200 μg	約5 days	￥ 156,500
500 μg	約5 days	￥ 330,500

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生物学的情報	Loaded Human IL-3R alpha Protein, His Tag on His1K Biosensor, can bind Human IL3 protein with an affinity constant of 0.183μM as determined in BLI assay (Routinely tested).
説明	IL-3R alpha/CD123 Protein, Human, Recombinant (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 34.5 kDa and the accession number is P26951-1.

Species	Human
Expression Host	HEK293
Tag	His
Accession Number	P26951-1
別名	CD123, interleukin 3 receptor, alpha (low affinity), interleukin 3 receptor, α (low affinity), IL3RY, IL3RX, IL-3R α/CD123, hIL-3Ra, IL3R, IL3RAY
Construction	A DNA sequence encoding the human IL3RA (NP_002174.1) extracellular domain (Met1-Arg305) was expressed with a C-terminal polyhistidine tag.
Protein Purity	> 95 % as determined by SDS-PAGE
分子量	34.5 kDa (predicted)

Endotoxin	< 1.0 EU per μg of the protein as determined by the LAL method.
Formulation	Lyophilized from sterile PBS, pH 7.4. Please contact us for any concerns or special requirements. Normally 5 % - 8 % trehalose, mannitol and 0. 01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hard copy of CoA.
Reconstitution	A hardcopy of datasheet with reconstitution instructions is sent along with the products. Please refer to it for detailed information.
Stability & Storage	Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃. Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Shipping	In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Research Background	Interleukin-3 receptor subunit alpha, also known as IL-3 receptor subunit alpha, IL-3R-alpha, CD123, and IL3RA, is a single-pass type I membrane protein that belongs to the type I cytokine receptor family and Type 5 subfamily. The specific alpha subunit of the interleukin-3 receptor (IL-3Ralpha, CD123) is strongly expressed in various leukemic blasts and leukemic stem cells and seems to be an excellent target for the therapy of leukemias. The WSXWS motif of IL3RA appears to be necessary for proper protein folding and thereby efficient intracellular transport and cell-surface receptor binding. The box one motif of IL3RA is required for JAK interaction and/or activation. IL3RA represents a unique marker for primitive leukemic stem cells. Targeting of IL3RA may be a promising strategy for the preferential ablation of AML cells. Aberrant IL3RA expression is a good marker for monitoring of minimal residual disease. IL3RA is strongly expressed in various leukemic blasts and leukemic stem cells and seems to be an excellent target for the therapy of leukemias. Recent studies have shown that interleukin-3 receptor alpha (CD123) is highly expressed on leukemia stem cells of patients with acute myeloid leukemia, and is correlated with tumor load and poor prognosis. CD123 was highly expressed in the bone marrow of the patients with myelodysplastic syndrome (MDS), significantly correlated with the proportion of bone marrow blasts, and thus might be the marker of MDS malignant clone. IL3RA is also a useful new marker for distinguishing B-cell disorders with circulating villous lymphocytes as its expression is characteristic of typical hairy cell leukemia (HCL) with high sensitivity and specificity.

参考文献

1. Del Giudice I, et al. (2004) The diagnostic value of CD123 in B-cell disorders with hairy or villous lymphocytes. Haematologica. 89(3): 303-8. 2. Du X, et al. (2007) New immunotoxins targeting CD123, a stem cell antigen on acute myeloid leukemia cells. J Immunother. 30(6): 607-13. 3. Yue LZ, et al. (2010) Expression of CD123 and CD114 on the bone marrow cells of patients with myelodysplastic syndrome. Chin Med J (Engl). 123(15): 2034-2037.

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IL-3R alpha/CD123 Protein, Human, Recombinant (His)

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