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Antibody to Human IL-21 C-terminus

DATASHEET

Specificity: Peptide sequence is < 50 % identical to other interleukins in this region. This antibody recognizes human IL-21 and was not tested for cross-reactivity to mouse IL-21.

Formulation: Liquid, 200 µg of peptide affinity purified antibody in 10 mM KHPO4, 140 mM NaCl containing 1 mg/mL BSA and 0.1 % sodium azide.

Quality Control: Immunocytochemistry on human spleen cells

Storage: Freeze at -20° C. For long term storage freeze at -70° C. Avoid freeze-thaw cycles.

For Research Purposes Only

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Phone 1-800-975-6866

Product Number CIO139

Amount 200 µg
Price $295 buy online
Host Rabbit
Antigen Synthetic peptide 125CDSYEKKPPKEFLERFKSLLQKMIHQHLS153 corresponding C-terminus region of human IL-21
Sequence Alignment

CDSYEKKPPKEFLERFKSLLQKMIHQHLS Human
CDSYEKRTPKEFLERLKWLLQKMIHQHLS Mouse

Antibody Concentration

1.0 mg/mL

Purification Peptide affinity purified
Species Cross-Reactivity Not tested
Buffer 10 mM KHPO4, 140 mM NaCl
pH 7.2
*

Applications:
Can be used for ELISA for human IL-21 in combination with CI0140 using the
Suggested Protocol.

Note: Some commercially available lots of rhIL-21 do not work for an ELISA standard curve in a sandwich assay in combination with CI0140 due possibly to folding differences from the disulfide bonds.

 
ELISA - for Peptide 1:100000
Immunocytochemistry See Protocol 1:500
Flow Cytometry ND
References  
1.
Kim HR, Hong MS, Dan JM, Kang I.  Altered IL-7Ralpha expression with aging and the potential implications of IL-7 therapy on CD8+ T-cell immune responses.  Blood. 2006 Apr 1;107(7):2855-62.  Full Text
2.
Parrish-Novak J et al. Interleukin 21 and its receptor are involved in NK cell expansion and regulation of lymphocyte function. Nature 2000, 408 (6808), 57-63 Abstract

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