IL-4 Protein (AA 25-153)

Catalog No. ABIN2018117

Product Details

Target: IL-4 (IL4) (Interleukin 4 (IL4))

Protein Type: Recombinant

Biological Activity: Active

Protein Characteristics: AA 25-153

Origin: Human

Source: CHO Cells

Characteristics: ED50< 0.25 ng/mL, measured in a cell proliferation assay using TF-1 human erythroleukemic cells, corresponding to a specific activity of >4 x 10^6 units/mg
AA 25-153, expressed with an N-terminal Met.

Purity: > 95 % as analyzed by SDS-PAGE and HPLC.

Endotoxin Level: < 0.2 EU/μg, determined by LAL method.

Application Details

Restrictions: For Research Use only

Handling

Format: Lyophilized

Reconstitution: Reconstituted in ddH2O or PBS at 100 μg/mL.

Buffer: Lyophilized after extensive dialysis against PBS.

Storage: -80 °C

Storage Comment: Lyophilized recombinant human Interleukin 4 (IL-4) remains stable up to 6 months at -80 °C from date of receipt. Upon reconstitution, rhIL-4 should be stable up to 1 week at 4 °C or up to 2 months at -20 °C

Expiry Date: 6 months

Target Details

Target: IL-4 (IL4) (Interleukin 4 (IL4))

Alternative Name: Interleukin-4 (IL-4) (IL4 Products)

Synonyms: IL4 Protein, IL-4 Protein, BCGF-1 Protein, BCGF1 Protein, BSF-1 Protein, BSF1 Protein, Il-4 Protein, Il4e12 Protein, IL2 Protein, interleukin 4 Protein, IL4 Protein, Il4 Protein

Background: Interleukin-4 (IL-4) is a pleiotropic cytokine regulates diverse T and B cell responses including cell proliferation, survival, and gene expression. It has important effects on the growth and differentiation of different immunologically competent cells. Interleukin-4 is produced by mast cells, T cells, and bone marrow stromal cells[1]. IL-4 regulates the differentiation of native CD4+ T cells (Th0 cells) into helper Th2 cells, and regulates the immunoglobulin class switching to the IgG1 and IgE isotypes. IL-4 has numerous important biological functions including stimulating B-cells activation, T-cell proliferation and CD4+ T-cells differentiation to Th2 cells. It is a key regulator in hormone control and adaptive immunity[2]. IL-4 also plays a major role in inflammation response and wound repair via activation of macrophage into M2 cells[3]. IL-4 is stabilized by three disulphide bonds forming a compact globular protein structure[4]. Four alpha-helix bundle with left-handed twist is dominated half of the protein structure with 2 overhand connections and fall into a 2-stranded anti-parallel beta sheet[5].Recombinant human IL-4 (rhIL-4) is a 129 amino acid protein expressed in mammalian CHO system. The approximate molecular weight is 15 kDa analyzed by non-reducing SDS-PAGE.
Synonyms: IL-4, B cell growth factor-1 (BCGF-1), B cell stimulatory factor-1 (BSF-1), B cell differentiation factor (BCDF), T cell growth factor-2 (TCGF-2), Mast-cell growth factor-2 (MCGF-2)

Molecular Weight: 15 kDa, observed by non-reducing SDS-PAGE.

NCBI Accession: NP_000580

Pathways: JAK-STAT Signaling, Regulation of Leukocyte Mediated Immunity, Positive Regulation of Immune Effector Process, Production of Molecular Mediator of Immune Response, Proton Transport, Activated T Cell Proliferation