Recombinant Cynomolgus Monkey IL-3R alpha Fc Protein, CF

Catalog #: 10597-R3 Datasheet / COA / SDS

Catalog #	Availability	Size / Price	Qty
10597-R3-050

Recombinant Cynomolgus Monkey IL-3R alpha Fc Chimera Protein Binding Activity.

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Summary Product Datasheets Carrier Free Data Images Reconstitution Calculator Background Related Research Areas

Recombinant Cynomolgus Monkey IL-3R alpha Fc Protein, CF Summary

Product Specifications

Purity

>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.

Endotoxin Level

<0.10 EU per 1 μg of the protein by the LAL method.

Activity

Measured by its binding ability in a functional ELISA. When Recombinant Cynomolgus Monkey IL-3R alpha Fc Chimera prootein (Catalog #10597-R3) is represent at 1 µg/mL (100 µg/mL), The concentration of Recombinant Human IL-3 Protein (Catalog # 203-IL) that produces 50% optimal binding response is found to be 8-40 ng/mL.

Source

Chinese Hamster Ovary cell line, CHO-derived cynomolgus monkey IL-3R alpha protein

Cynomolgus Monkey IL-3R alpha (Arg18-Arg305) Accession # EHH61867.1	IEGRMD	Human IgG₁ (Pro100-Lys330)
N-terminus		C-terminus

Accession #

EHH61867.1

N-terminal Sequence
Analysis

Arg18

Structure / Form

Disulfide-linked homodimer

Predicted Molecular Mass

60 kDa

SDS-PAGE

85-100 kDa, under reducing conditions

Product Datasheets

10597-R3

Product Datasheet

COA

SDS

Carrier Free

What does CF mean?

CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.

What formulation is right for me?

In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.

10597-R3

Formulation	Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution	Reconstitute at 200μg/mL in PBS.
Shipping	The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage:	Use a manual defrost freezer and avoid repeated freeze-thaw cycles. 12 months from date of receipt, -20 to -70 °C as supplied. 1 month, 2 to 8 °C under sterile conditions after reconstitution. 3 months, -20 to -70 °C under sterile conditions after reconstitution.

Scientific Data

Binding Activity

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When Recombinant Cynomolgus Monkey IL-3R alpha Fc Chimera (Catalog #10597-R3) is present at 1 µg/mL (100 µg/mL), the concentration of Recombinant Human IL-3 Protein (203-IL) that produces 50% optimal binding response is found to be 8-40 ng/mL.

SDS-PAGE

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2 μg/lane of Recombinant Cynomolgus Monkey IL-3R alpha Fc Chimera (Catalog # 10597-R3) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 85-100 kDa and 170-200 kDa, respectively.

Reconstitution Calculator

Background: IL-3R alpha

IL-3 receptor chain alpha (IL‑3Ra) also known as CD123, is a member of the type 1 cytokine receptor family of proteins expressed mainly by activated T cells or mast cells (1-3). IL-3Ra is a 60-70 kDa receptor component that binds IL-3 with low affinity and forms one-half of the IL-3 receptor complex. IL-3Ra associates with the 130-140 kDa non-ligand binding IL-3Rb for high-affinity binding to IL-3 to form the heterodimeric receptor complex (4). IL-3Ra consists of an extracellular domain (ECD) with an N-terminal Ig-like C2-type domain and a cytokine-binding domain containing two fibronectin type-III domains with a WSXWS motif, a helical transmembrane segment and a cytoplasmic domain (3). Within the mature ECD, cynomolgus IL-3Ra shares 85% amino acid sequence identity with human IL-3Ra. An isoform lacking the N-terminal domain of ECD has been identified in mouse and human (5, 6). IL‑3 stimulates the proliferation and differentiation of hemopoietic cells including the pluripotent hematopoietic stem cells as well as various lineage‑committed cells (7). IL-3Ra is expressed on multiple cell types, including endothelial cells, monocytes, eosinophils, basophils plus mast cells, and plasmacytoid CD4+ T cells (8). IL-3Ra is over-expressed by Acute myeloid leukemia and this is associated with a poor prognosis in AML (9).

References

Broughton, S.E. et al. (2012) Immunol. Rev. 250:277.
Langer, J.A. et al. (2004) Cytokine Growth Factor Rev. 15:33.
Broughton, S.E. et al. (2014) Acta Crystallogr F Struc Biol Commun. 70:358.
Broughton, S.E. et al. (2014) Cell Reports. 8:410.
Chen, J. et al. (2009) J. Biol. Chem. 284:5763.
Hamming, O.J. et al. (2012) J Biol Chem. 287:9454.
Ogorochi, T. and A. Miyajima (1994) in Guidebook to Cytokines and Their Receptors, N.A. Nicola, ed. Oxford University, New York p. 40.
Michalska, A. et al. (2020) Postepy Dermatol Alergol. 37:299.
Testa, U. et al. (2002) Blood 100:2980.

Long Name

Interleukin 3 Receptor alpha

Entrez Gene IDs

3563 (Human); 16188 (Mouse); 102138639 (Cynomolgus Monkey)

Alternate Names

CD123 antigen; CD123; hIL3Ra; hIL-3Ra; IL-3 R alpha; IL-3 receptor subunit alpha; IL3R alpha; IL-3R alpha; IL-3R subunit alpha; IL3R; IL3RA; IL-3Ra; IL-3R-alpha; IL3RAY; IL3RX; IL3RY; interleukin 3 receptor, alpha (low affinity); interleukin-3 receptor subunit alpha; MGC34174