Recombinant Human Interleukin-21 (IL21) (Active)

SKU: orb3155922

Active

Description

Images & Validation

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Application Notes

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.

Key Properties

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Source	Mammalian cell
Biological Origin	Homo sapiens (Human)
Biological Activity	①Measured by its binding ability in a functional ELISA. Immobilized Macaca fascicularis IL21R (CSB-MP7140MOV) at 2 μg/mL can bind Human IL21. The EC50 is 15.01-19.43 ng/mL. ②Measured by its binding ability in a functional ELISA. Immobilized Human IL21R (CSB-MP862061HU) at 2 μg/mL can bind Human IL21. The EC50 is 16.65-19.49 ng/mL. ③Human IL21 captured on Protein A Chip can bind Recombinant Macaca fascicularis IL21R (CSB-MP7140MOV) with an affinity constant of 1.31 nM as detected by MetaSPR Assay (WeSPRTM 200). ④Human IL21 captured on Protein A Chip can bind Recombinant Human IL21R (CSB-MP862061HU) with an affinity constant of 1.87 nM as detected by MetaSPR Assay (WeSPRTM 200).
Tag	C-terminal hFc1-tagged
Molecular Weight	44.4 kDa
Expression Region	23-155aa
Protein Length	Full Length of Mature Protein
Protein Sequence	QGQDRHMIRMRQLIDIVDQLKNYVNDLVPEFLPAPEDVETNCEWSAFSCFQKAQLKSANTGNNERIINVSIKKLKRKPPSTNAGRRQKHRLTCPSCDSYEKKPPKEFLERFKSLLQKMIHQHLSSRTHGSEDS
Purity	Greater than 90% as determined by SDS-PAGE.
Endotoxins	Less than 1.0 EU/ug as determined by LAL method.

Storage & Handling

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Storage	The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Form/Appearance	Lyophilized powder
Buffer/Preservatives	Lyophilized from a 0.2 μm sterile filtered PBS, 6% Trehalose, pH 7.4
Expiration Date	6 months from date of receipt.
Disclaimer	For research use only

Alternative Names

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Interleukin-21; IL-21; Za11

Quality Guarantee

Explore bioreagents carefree to elevate your research. All our products are rigorously tested for performance. If a product does not perform as described on its datasheet, our scientific support team will provide expert troubleshooting, a prompt replacement, or a refund. For full details, please see our Terms & Conditions and Buying Guide. Contact us at support@biorbyt.com.

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UniProt

Q9HBE4

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No UniProt data available

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