Human IL-4 Protein

• Catalog Number: orb257598
• Category: Proteins
• Description: Interleukin-4, is a cytokine that induces differentiation of naive helper T cells (Th0 cells to Th2 cells). In the presence of IL-4 and IL-13, cytokines that are produced in a Th-2 type response, particularly during allergy and parasitic infections, macrophages become differentially activated, And this cytokine is a ligand for interleukin 4 receptor. The interleukin 4 receptor also binds to IL13, which may contribute to many overlapping functions of this cytokine and IL13. STAT6, a signal transducer and activator of transcription, has been shown to play a central role in mediating the immune regulatory signal of this cytokine. Recently, researcher found that the cytokine IL-4 plays a key role in development of innate CD8+ T cells in the thymus of several gene-deficient mouse strains, including Itk, KLF2, CBP and Id3, without previous exposure to antigen.
• Reactivity: Human
• Tag: Native
• Form/Appearance: Powder
• Purity: 90%
• Conjugation: Unconjugated
• MW: 15.0 kDa
• Target: IL-4
• Source: Human IL-4, premium grade (orb257598) is expressed from human 293 cells (HEK293). It contains AA His 25 - Ser 153 (Accession # P05112-1).
• Expression System: HEK293
• Biological Activity: Immobilized Human IL-4, premium grade at 5 μg/mL (100 μL/well) can bind Human IL-4 R alpha, Fc Tag with a linear range of 0.001-0.031 μg/mL (QC tested).
• Expression Region: His 25 - Ser 153
• Endotoxins: 0.01 EU per μg
• NCBI: AAH67514
• Storage: -20°C to -70°C for 12 months in lyophilized state; -70°C for 3 months under sterile conditions after reconstitution. For long term storage, the product should be stored at lyophilized state at -20°C or lower.
• Buffer/Preservatives: PBS, pH7.4
• Alternative names: IL4,BCGF1,BSF1
• Note: For research use only
• Application notes: This protein carries no "tag". The protein has a calculated MW of 15.0 kDa. The protein migrates as 19 kDa±3 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
• Expiration Date: 6 months from date of receipt.

SDS-PAGE analysis of Human IL4 protein

Immobilized Human IL-4, premium grade (Cat. No. orb257598) at 5 μg/mL (100 μL/well) can bind Human IL-4 R alpha, Fc Tag (Cat. No. orb545738) with a linear range of 0.001-0.031 μg/mL (QC tested).