Catalog No.	IL2-HE021
Product Name	Human IL-21 Protein (IL2-HE021)
Supplier Name	KACTUS Biosystems
Brand Name	KACTUS Biosystems
Synonyms	Interleukin-21; IL-21; Za11; CVID11
Species	Human
Source	E.coli
Accession	Q9HBE4-1
Product Tag	No Tag
Biotinylated	no
Exact Sequence	Gln32-Ser162
Molecular Weight	The protein has a predicted MW of 15.4 kDa same as Tris-Bis PAGE result.
Form	Lyophilized
Formulation	Lyophilized from 0.22μm filtered solution in 20mM NaAc, 150mM NaCl (pH 5.5). Normally 8% trehalose is added as protectant before lyophilization.
Reconstitution	Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/ml is recommended. Dissolve the lyophilized protein in 20mM NaAc, 150mM NaCl (pH 5.5).
Purity	> 95% as determined by Tris-Bis PAGE
Endotoxin	Less than 1EU per μg by the LAL method.
Shipping	Shipped at ambient temperature.
Stability & Storage	'-20 to -80°C for 12 months as supplied from date of receipt.；-20 to -80°C for 3-6 months in unopened state after reconstitution.；2-8°C for 2-7 days after reconstitution.；Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.
Note	Products will be shipped from the warehouse in Massachusetts. Promotion is running from time to time. Welcome to send a request for quote to message@sydlabs.com.
Order Offline	Syd Labs, Inc. 4 Avenue E, Hopkinton, MA 01748 USA. Phone: 1-617-401-8149 Fax: 1-617-606-5019 Email: message@sydlabs.com

Description

IL2-HE021: Human IL-21 Protein (IL2-HE021)

Interleukin-21 (IL-21), produced predominantly by CD4 T cells and natural killer T (NKT) cells, is a newly discovered member of the common γ-chain family of cytokines. It has been implicated in many immunological processes and has been linked to autoimmune diseases, allergies and other inflammatory diseases.

Please remember our product information: Human IL-21 Protein (IL2-HE021) catalog number: IL2-HE021 KACTUS Biosystems

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