Gibco™ Human IL-4 Recombinant Protein

Description

Recombinant Protein

Carrier-Free Reconstitution: Centrifuge the vial briefly, before opening to bring the contents to the bottom. Reconstitute the lyophilized protein in sterile, deionized water to 0.1-1.0 mg/mL to regain full activity. Apportion the reconstituted protein into working aliquots and store at ≤-20°C. Make any further dilutions of the reconstituted protein in low endotoxin medium or buffered solution with FCS or tissue culture grade BSA. Storage Store the lyophilized protein at 2-8°C, preferably desiccated. Upon reconstitution, apportion into working aliquots and store at ≤-20°C (not in a frost-free freezer). Avoid repeated freeze-thaw cycles.

Interleukin-4 (IL-4) is a pleiotropic, immune-modulatory cytokine produced by activated T cells, and serves as a ligand for interleukin 4 receptor. IL-4 has been found to have the broadest range of actions. 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 an important role in mediating the immune regulatory signal of IL-4. The IL-4 gene, IL-3, IL-5, IL-13, and CSF2 form a cytokine gene cluster on chromosome 5q. In particular, IL-4 is located in close proximity to IL13 on the chromosome. Further, the IL-4 gene, IL13 and IL5 are found to be coordinated by several long-range regulatory elements over a 120 kilobase range on the chromosome. IL-4 delta 2 is a known splice variant of IL-4.

Specifications

• Accession Number: P05112
• For Use With (Application): Control, ELISA, Functional Assay, Immunohistochemistry, Western Blot
• Formulation: protein with no preservative
• Gene ID (Entrez): 3565
• Molecular Weight (g/mol): 14.9 kDa
• Name: Human IL-4
• Purification Method: Sequential Chromatography
• Quantity: 10 μg
• Endotoxin Concentration: <0.1 ng/ μg
• Gene Alias: B cell growth factor 1; B_cell stimulatory factor 1; B-cell growth factor 1; B-cell IgG differentiation factor; B-cell stimulatory factor 1; BCGF1; BCGF-1; binetrakin; BSF1; BSF-1; cytokine; H-IL-4; IGG1 induction factor; IL2; IL4; Il-4; Il4e12; ILN; Interleukin; interleukin 4; interleukin 4 variant 2; interleukin 4 variant IL-4 delta2; interleukin 4 variant IL-4 delta3; interleukin 4 variant IL-4 int2A; interleukin 4 variant IL-4 int3A; interleukin 4 variant IL-4 int3B; Interleukin4; interleukin-4; interleukin-4 precursor; lymphocyte stimulatory factor 1; MGC79402; M-IL-4; Pitrakinra
• Common Name: IL-4
• Biological Activity: ED50 = 0.05 - 0.4 ng/mL; determined by the dose-dependent proliferation of human TF-1 cells.
• Conjugate: Unconjugated
• Species: Human
• Recombinant: Recombinant
• Sequence: HKCDITLQEI IKTLNSLTEQ KTLCTELTVT DIFAASKNTT EKETFCRAAT VLRQFYSHHE KDTRCLGATA QQFHRHKQLI RFLKRLDRNL WGLAGLNSCP VKEANQSTLE NFLERLKTIM REKYSKCSS
• Content And Storage: 4°C
• Classification: Carrier-Free
• Endotoxin Level: <0.1 ng/μg
• Shipping Condition: Wet Ice
• Expression System: E. coli
• Protein Family: Cytokines & Receptors
• Protein Form: Recombinant, Ligand
• Form: Lyophilized
• Protein Subtype: Interleukins
• Research Category: Immunology, Stem Cell Research, Inflammation
• Product Line: Gibco™
• Purity or Quality Grade: >95% by SDS-PAGE

Safety and Handling

WARNING: Cancer - www.P65Warnings.ca.gov