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R&D Systems™ Recombinant Human IL-7 Protein

Product Code. 18335317
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Quantity:
200 μg
25 μg
5 μg
Formulation:
Lyophilized from a 0.2μm filtered solution in PBS with BSA as a carrier protein.
Lyophilized from a 0.2μm filtered solution in PBS.
Unit Size:
200µg
25µg
5µg
6 product options available for selection
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Product Code. Quantity Formulation unitSize
18335317 200 μg Lyophilized from a 0.2μm filtered solution in PBS. 200µg
18198360 25 μg Lyophilized from a 0.2μm filtered solution in PBS with BSA as a carrier protein. 25µg
18178510 5 μg Lyophilized from a 0.2μm filtered solution in PBS with BSA as a carrier protein. 5µg
18197030 5 μg Lyophilized from a 0.2μm filtered solution in PBS. 5µg
18196190 25 μg Lyophilized from a 0.2μm filtered solution in PBS. 25µg
18127220 200 μg Lyophilized from a 0.2μm filtered solution in PBS with BSA as a carrier protein. 200µg
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Product Code. 18335317 Supplier R&D Systems™ Supplier No. 207IL200/CF

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Description

Extensive quality control produces industry leading bioactivity and lot-to-lot consistency that instills confidence in results and ensures reproducibility. Applications: Bioactivity

Measured in a cell proliferation assay using PHA-activated human peripheral blood lymphocytes (PBL). Yokota, T. et al. (1986) Proc. Natl. Acad. Sci. USA 83:5894. The ED50 for this effect is 0.1-0.5 ng/mL. The specific activity of Recombinant Human IL-7 is approximately 4.4 x 105 IU/μg, which is calibrated against human IL-7 WHO International Standard (NIBSC code: 90/530). Specific activity is for reference purposes only and is not routinely tested.
TRUSTED_SUSTAINABILITY

Specifications

Formulation Lyophilized from a 0.2μm filtered solution in PBS.
Gene ID (Entrez) 3574
Molecular Weight (g/mol) 17 kDa
Name IL-7
Quantity 200 μg
Source E. coli-derived human IL-7 protein Asp26-His177,with an N-terminal Met
Storage Requirements 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.
Endotoxin Concentration <0.01 EU per 1μg of the protein by the LAL method.
Conjugate Unconjugated
Recombinant Recombinant
Reconstitution Reconstitute 5 μg vials at 50 μg/mL in sterile PBS. Reconstitute 10 μg or larger vials (at 100 μg/mL in sterile PBS.)
Buffer Lyophilized from a 0.2μm filtered solution in PBS.
Purity or Quality Grade 97%, by SDS-PAGE under reducing conditions and visualized by silver stain.
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