Recombinant Human IL4 Protein, N-Fc (HY457011) expressed in Mammalian Cells, spanning His25-Ser153. Purity: >90% by SDS-PAGE.
Highlights
●Fc Fusion — Enhanced stability with Protein A/G purification compatibility.
●Mammalian Expression — Proper folding and native glycosylation.
●High Purity — >90% purity verified by SDS-PAGE.
表达系统
Mammalian cells
Accession号
P05112
蛋白长度
His25-Ser153
应用
ELISA, Immunogen, SDS-PAGE, WB, Bioactivity testing in progress
种属
Homo sapiens (Human)
性质
Recombinant
内毒素水平
Please contact with the lab for this information.
纯度
>90% as determined by SDS-PAGE.
状态
Lyophilized
保存溶液
Lyophilized from a solution in PBS pH 7.4, 1 mM EDTA, 4% Trehalose, 1% Mannitol.
Please refer to the specific buffer information in the hardcopy of datasheet or the lot-specific COA.
重悬
Reconstitute in sterile water for a stock solution. Adjust the volume of sterile water so that, after reconstitution, the final stock concentration matches the value indicated on the product label or datasheet.
RECONSTITUTION PROTOCOL 1. Allow the product to be reconstituted and the reconstitution diluent to reach room temperature. 2. Tap or briefly centrifuge the product vial before opening to dislodge any lyophilized material that may be dispersed on the wall or cap of the vial. 3. Use the diluent and stock concentration recommended in the product datasheet. If preparing a stock concentration higher than recommended, contact Technical Service. 4. After adding the diluent, re-cap the vial and invert gently by hand or place on a slow rocking platform to allow the reconstitution diluent to coat all the surfaces inside the vial. Note: Do not mix by vortexing or by pipetting the material up and down. 5. Allow the vial to sit at room temperature with gentle agitation for at least 15 minutes before aliquotting or using. 6. Store the reconstituted material in single use aliquots in polypropylene or siliconized tubes. Aliquots of 10 μL or larger are recommended.
运输
In general, proteins are provided as lyophilized powder/frozen liquid. They are shipped out with dry ice/blue ice unless customers require otherwise.
稳定性和存储
Use a manual defrost freezer and avoid repeated freeze thaw cycles. Store at 2 to 8°C for frequent use. Store at -20 to -80°C for twelve months from the date of receipt.
Interleukin-4 (IL4) is a ~17 kDa protein. Cytokine secreted primarily by mast cells, T-cells, eosinophils, and basophils that plays a role in regulating antibody production, hematopoiesis and inflammation, and the development of effector T-cell responses. Induces the expression of class II MHC molecules on resting B-cells. Enhances both secretion and cell surface expression of IgE and IgG1. Also regulates the expression of the low affinity Fc receptor for IgE (CD23) on both lymphocytes and monocytes. Positively regulates IL31RA expression in macrophages.
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1. Carr, C. et al. (1991) Biochemistry 30, 1515-23. PMID: 1993171
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2. Yokota, T. et al. (1986) Proceedings of the National Academy of Sciences of the United States of America 83, 5894-8. PMID: 3016727
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3. Delespesse, G. et al. (1989) Journal of immunology (Baltimore, Md. : 1950) 142, 134-8. PMID: 2521231
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4. Hage, T. et al. (1999) Cell 97, 271-81. PMID: 10219247
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5. Hülsmeyer, M. et al. (2001) Acta crystallographica. Section D, Biological crystallography 57, 1334-6. PMID: 11526337
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6. LaPorte, SL. et al. (2008) Cell 132, 259-72. PMID: 18243101
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7. Malabarba, MG. et al. (1995) The Journal of biological chemistry 270, 9630-7. PMID: 7721895
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Note
For research use only.
图片
SDS-PAGE
SDS-PAGE for Recombinant Human IL4 Protein, N-Fc
Bioactivity
Immobilized HY457011 Human IL4 Recombinant Protein (N-Fc) at 2 μg/mL(100 μL/well) can bind HB732011 Human CD124/IL4R Recombinant Protein (C-His), the EC 50 is 10.2 ng/mL.
Bioactivity
Immobilized HB732011 Human CD124/IL4R Recombinant Protein (C-His) at 2 μg/mL(100 μL/well) can bind HY457011 Human IL4 Recombinant Protein (N-Fc), the EC 50 is 16.5 ng/mL.
