BSF1; BCGF1; B Cell Stimulatory Factor 1; Lymphocyte stimulatory factor 1; B Cell Growth Factor; Binetrakin; Pitrakinra
Species:
Human
Sample type:
serum, plasma, tissue homogenates, cell lysates, cell culture supernates or other biological fluids.
Experimental method:
Sandwich
Shelf life:
12 months
UniProt ID:
P05112
Gene ID:
3565
Components:
1. Pre-coated, ready to use 96-well strip plate 1
2. Plate sealer for 96 wells 2
3. Standard 2
4. Diluents buffer: 1×45 mL
5. Detection Reagent A: 1×120 μL
6. Detection Reagent B: 1×120 μL
7. TMB Substrate: 1×9 mL
8. Stop Solution: 1×6 mL
9. Wash Buffer (30× concentrate): 1×20 mL
Background
The protein encoded by this gene is a pleiotropic cytokine produced by activated T cells. 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. This gene, IL3, IL5, IL13, and CSF2 form a cytokine gene cluster on chromosome 5q, with this gene particularly close to IL13. This gene, IL13 and IL5 are found to be regulated coordinately by several long-range regulatory elements in an over 120 kilobase range on the chromosome. IL4 is considered an important cytokine for tissue repair, counterbalancing the effects of proinflammatory type 1 cytokines, however, it also promotes allergic airway inflammation. Moreover, IL-4, a type 2 cytokine, mediates and regulates a variety of human host responses such as allergic, anti-parasitic, wound healing, and acute inflammation. This cytokine has been reported to promote resolution of neutrophil-mediated acute lung injury. In an allergic response, IL-4 has an essential role in the production of allergen-specific immunoglobin (Ig) E. This pro-inflammatory cytokine has been observed to be increased in COVID-19 (Coronavirus disease 2019) patients, but is not necessarily associated with severe COVID-19 pathology. Two alternatively spliced transcript variants of this gene encoding distinct isoforms have been reported.
