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Verified reactivity
Bos taurus; Bovine (Cattle)
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Detection limits
31.25-2000 pg/mL
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Sensitivity limit
1,05 pg/mL
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Samples to be analyzed
Serum, plasma and other biological fluids
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Assay duration
2 hours, 40min
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Verified applications
CLIA
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Assay class
Sandwich
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ELISA detection
Chemiluminescent
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Protein number
Please refer to Uniprot
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Alternate protein number
Please refer to SwissProt
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Gene number
Please refer to GenBank
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Gene name
Interleukin 4
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Alternate gene name
BSF1; BCGF1 ;B Cell Stimulatory Factor 1; Lymphocyte stimulatory factor 1; B Cell Growth Factor; Binetrakin; Pitrakinra
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Estimated production time
7-11 business days
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Shipping requirements
Blue ice
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Storage recommendation
-20°C. Bring all reagents to room temperature before beginning test. The kit may be stored at 4°C for immediate use within two days upon arrival. Reseal any unused strips with desiccant pack. Minimize freeze/thaw cycles.
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Use for
8 months
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ELISA s specificity
This assay has high sensitivity and excellent specificity for detection of Interleukin 4 (IL4). No significant cross-reactivity or interference between Interleukin 4 (IL4) and analogues was observed.
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ELISA s cross reactivity
This assay doesn't seem to cross-react with other species. For more information about cross-reactivity please contact us.
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Assay principle
The microplate provided in this kit has been pre-coated with an antibody specific to Interleukin 4 (IL4). Standards or samples are then added to the appropriate microplate wells with a biotin-conjugated antibody specific to Interleukin 4 (IL4). Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. Then the mixture of substrate A and B is added to generate glow light emission kinetics. Upon plate development, the intensity of the emitted light is proportional to the Interleukin 4 (IL4) level in the sample or standard.;
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Protocol
Please see ELISA's datasheet, otherwise contact us
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Precision of the test
Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Interleukin 4 (IL4) were tested 20 times on one plate, respectively. Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Interleukin 4 (IL4) were tested on 3 different plates, 8 replicates in each plate. CV(%) = SD/meanX100 Intra-Assay: CV
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ELISA s stability
The stability of kit is determined by the loss rate of activity. The loss rate of this kit is less than 5% within the expiration date under appropriate storage condition. To minimize extra influence on the performance, operation procedures and lab conditions, especially room temperature, air humidity, incubator temperature should be strictly controlled. It is also strongly suggested that the whole assay is performed by the same operator from the beginning to the end.
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QC
The Kit is manufactured at ISO 9001 and ISO 13485 certified facilities.
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Research main area
Cytokine;Immune molecule;
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Warnings
Do not allow to contact skin or eyes. Calibrators, controls and specimen samples should be assayed in duplicate. Once the procedure has been started, all steps should be completed without interruption.
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Notes
For research use only. Not for diagnostic procedures.
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Gene
Interleukin 4 (IL4) is a cytokine that induces differentiation of naive helper T cells (Th0 cells) to Th2 cells. It is used for dendritic and T cell therapy. Upon activation by IL-4, Th2 cells subsequently produce additional IL-4 in a positive feedback loop. The cell that initially produces IL-4, thus inducing Th0 differentiation, has not been identified, but recent studies suggest that basophils may be the effector cell. It is closely related and has functions similar to Interleukin 13. Recombinant, GMP rec. E. coli interleukin-4 for cell culture supplied by GENTAUR. Free samples on request.
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Description
A microtiter plate (spelled Microtiter is a registered trade name in the United States) or microplate or micro well plate or multiwell, is a flat plate with multiple "wells" used as small test tubes. The microplate has become a standard tool in analytical research and clinical diagnostic testing laboratories. A very common usage is in the enzyme-linked immunosorbent assay (ELISA), the basis of most modern medical diagnostic testing in humans and animals.
A microplate typically has 6, 24, 96, 384 or 1536 sample wells arranged in a 23 rectangular matrix. Some microplates have even been manufactured with 3456 or 9600 wells, and an "array tape" product has been developed that provides a continuous strip of microplates embossed on a flexible plastic tape.