Animal-Free IL-5 Protein, Mouse (His)

IL-5 protein is expressed by T lymphocytes and NK cells and regulates eosinophils, affecting their survival, differentiation and chemotaxis. In addition, IL-5 stimulates immunoglobulin production, growth, and differentiation of activated and resting B cells. Animal-Free IL-5 Protein, Mouse (His) is the recombinant mouse-derived animal-FreeIL-5 protein, expressed by E. coli , with C-His labeled tag. The total length of Animal-Free IL-5 Protein, Mouse (His) is 113 a.a., with molecular weight of ~13.93 kDa.

IL-5 Protein, a homodimeric cytokine predominantly expressed by T-lymphocytes and NK cells, plays a pivotal role in the regulation of eosinophils by influencing their survival, differentiation, and chemotaxis. Additionally, IL-5 acts on both activated and resting B-cells, stimulating immunoglobulin production, growth, and differentiation. Mechanistically, the biological effects of IL-5 are mediated through a receptor complex composed of the IL5RA subunit and the cytokine receptor common subunit beta/CSF2RB. Upon binding to the receptor, IL-5 triggers the activation of various kinases, including LYN, SYK, and JAK2, thus propagating signals through the RAS-MAPK and JAK-STAT5 pathways (By similarity). Structurally, IL-5 forms a homodimer that is disulfide-linked and interacts with its receptor components IL5RA and CSF2RB, highlighting the specificity and complexity of its molecular interactions in orchestrating immune responses.

Measure by its ability to induce TF-1 cells proliferation. The ED₅₀ for this effect is <0.2 ng/mL. The specific activity of recombinant mouse IL-5 is > 5 x 10⁶ IU/mg

Mouse

E. coli

C-His

P04401 (M21-G133)

16191  [NCBI]

MEIPMSTVVKETLTQLSAHRALLTSNETMRLPVPTHKNHQLCIGEIFQGLDILKNQTVRGGTVEMLFQNLSLIKKYIDRQKEKCGEERRRTRQFLDYLQEFLGVMSTEWAMEG

Approximately 13.93 kDa

Greater than 95% as determined by reducing SDS-PAGE.

Lyophilized powder.

Lyophilized from a solution containing 1X PBS, pH 7.4.

<0.1 EU per 1 μg of the protein by the LAL method.

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH₂O.

Stored at -20°C for 2 years. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Room temperature in continental US; may vary elsewhere.