"IL4" Related Products

Recombinant Rhesus IL4 protein

Cat.No. : IL4-540R
Product Overview : Recombinant Rhesus IL4 protein was expressed in Escherichia coli.
Description : Interleukin-4 (IL-4) is a pleiotropic cytokine mainly produced by mast cells, activated T cells and bone marrow stromal cells. It has many biological roles, including the stimulation of activated B-cell and T-cell proliferation, and the differentiation of CD4+ T-cells into Th2 cells. Additionally, It enhances both secretion and cell surface expression of IgE and IgG1 and also regulates the expression of the low affinity Fc receptor for IgE (CD23) on both lymphocytes and monocytes. The rhesus macaque IL-4 shares about 40 % ~ 45 % a.a. sequence identity with human, mouse, rat IL-4 and they are species-specific in their activities.
Source : E.coli
Species : Rhesus
Form : Lyophilized from a 0.2μm filtered concentrated solution in 2 × PBS, pH 7.4, 5 % trehalose.
Bio-activity : Fully biologically active when compared to standard. The ED50 as determined by a cell proliferation assay using human TF-1 cells is less than 1.0 ng/ml, corresponding to a specific activity of > 1.0 × 106 IU/mg.
Molecular Mass : Approximately 14.9 kDa, a single non-glycosylated polypeptide chain containing 129 amino acids.
Protein length : 129
AA Sequence : HNCHIALREIIETLNSLTEQKTLCTKLTITDILAASKNTTEKETFCRAATVLRQFYSHHEKDTRCLGATAQQFHRHKQLIRFLKRLDRNLWGLAGLNSCPVKEANQSTLEDFLERLKTIMREKYSKCSS
Endotoxin : Less than 1 EU/μg of rRhIL-4 as determined by LAL method.
Purity : >96% by SDS-PAGE and HPLC analysis.
Storage : Use a manual defrost freezer and avoid repeated freeze-thaw cycles. 12 months from date of receipt, -20 to -70 centigrade as supplied. 1 month, 2 to 8 centigrade under sterile conditions after reconstitution. 3 months, -20 to -70 centigrade under sterile conditions after reconstitution.
Reconstitution : We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1 % BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤-20centigrade. Further dilutions should be made in appropriate buffered solutions.
Gene Name : IL4
Official Symbol : IL4
Synonyms : BSF-1, Lymphocyte Stimulatory Factor 1
Gene ID : 574281
mRNA Refseq : NM_001032904.1
Protein Refseq : NP_001028076.1
UniProt ID : P51492

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