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You are here:Home » Growth Factors, Cytokines » Growth Factors-Interleukin » Interleukin 7, Recombinant, Human (IL-7)

Interleukin 7, Recombinant, Human (IL-7)

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Specifications

Interleukin 7 (IL-7), which is constitutively produced particularly by stromal cells from the bone marrow and thymus, plays a crucial role in T cell homeostasis. This cytokine is implicated in thymopoiesis since it sustains thymocyte proliferation and survival. It regulates peripheral naive T cell survival by modulating the expression of the anti-apoptotic molecule Bcl-2, and sustains peripheral T cell expansion in response to antigenic stimulation. Infection by the human immunodeficiency virus (HIV) leads to severe T lymphopenia and general immune dysfunction. Increased IL-7 plasma levels are generally observed in HIV-infected patients.
Catalog #I8429-10C
Endotoxin <0.001ng/ug or <0.01EU/ug as per LAL
AA SequenceMDCDIEGKDG KQYESVLMVS IDQLLDSMKE IGSNCLNNEF NFFKRHICDA NKEGMFLFRA ARKLRQFLKM NSTGDFDLHL LKVSEGTTIL LNCTGQVKGR KPAALGEAQP TKSLEENKSL KEQKKLNDLC FLKRLLQEIK TCWNKILMGT KEH
Biological ActivityrHuIL-7 is fully biologically active when compared to standard. The ED50 as determined by the dose-dependent stimulation of murine IXN/2B cells is
< 0.5ng/ml, corresponding to a Specific Activity of 2x10e6IU/mg.
Storage and StabilityLyophilized powder may be stored at -20°C. Stable for 12 months at -20°C. Reconstitute with sterile ddH2O, 0.1% HSA or BSA . Aliquot to avoid repeated freezing and thawing. Store at -20°C. Reconstituted product is stable for 6 months at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
Molecular Weight17.5kD
SourceRecombinant, human, E. coli
Purity98% as determined by RP-HPLC; Reducing and non-reducing SDS-PAGE.
FormSupplied as a lyophilized powder. Reconstitute with sterile ddH2O, 0.1% HSA or BSA PBS to a concentration of ~0.1mg/ml, which can be further diluted into other aqueous solutions.
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.


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