GRADE & PURITYCarrier Free?Carrier-free — supplied without added carrier protein/stabilizer. Use when carriers (e.g. BSA) would interfere with conjugation or sensitive assays.Bioactive?Bioactive grade — verified to retain biological activity in functional assays. Use when the molecule must be functionally active, not just pure.ActiBioPure™?ActiBioPure™ — Aladdin's premier line for bioactive and recombinant products. Use when both high purity and preserved biological activity are required.PBS Only?PBS-only formulation — supplied in phosphate-buffered saline with no other additives. Use when you need a clean PBS buffer free of stabilizers/carriers.≥90%(SDS-PAGE)See COA
Accession #
Q9HBE4
Protein Tag
No tag
Expression system
E. coli
Endotoxin Concentration
<1.0 EU/μg
Bioactivity
Measured in a cell proliferation assay using mouse splenocytes. The ED50 for this effect is typically 27.01ng/mL
Carrier Free,Bioactive,ActiBioPure™,PBS Only,≥90%(SDS-PAGE),See COA ActiBioPure™,Bioactive,Carrier Free,PBS Only for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
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Storage & shipping
Store at -20°C,Avoid repeated freezing and thawing Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.
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Quality documents
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
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Literature proof
Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Carrier Free, Bioactive, ActiBioPure™, PBS Only, ≥90%(SDS-PAGE), See COA
Mecanismos bioquímicos y fisiológicos
IL21 belongs to the IL-15/IL-21 family. It is a cytokine with immunoregulatory activity. Cytokines are proteinaceous signaling compounds that are major mediators of the immune response. They control many different cellular functions including proliferatio
Bioactividad
Measured in a cell proliferation assay using mouse splenocytes. The ED50 for this effect is typically 27.01ng/mL
16.5 kDa, under reducing conditions; 17.0 kDa, under non-reducing conditions.
Tipo de molécula
Protein
Almacenamiento y envío
Concentración
See COA
Condiciones de almacenamiento de almacenamiento
Store at -20°C,Avoid repeated freezing and thawing
Enviado en
Ice chest + Ice pads
Estabilidad y almacenamiento
Store at -20℃ for 12 months. Upon reconstitution, it is recommended to aliquot. Avoid freeze/thaw cycle.
Imágenes
Recombinant Human IL-21 Protein (rp188212) - Protein Bioactivity Measured in a cell proliferation assay using mouse splenocytes. The ED50 for this effect is typically 27.01ng/mL.
Recombinant Human IL-21 Protein (rp188212) - SDS-PAGE 3 μg/lane of Recombinant Human IL-21 Protein was resolved with SDS-PAGE under reducing (R) and non-reducing (N) conditions and visualized by Coomassie® Blue staining, showing a band at 16.5 kDa under reducing conditions and 17.0 kDa under non-reducing conditions.
Documentation
📋 Safety Data Sheet (SDS)
Comprehensive hazard, handling, storage, and regulatory compliance document.
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