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IL4, BCGF1, BSF1
Biotinylated Human IL-4, Avitag,His Tag (IL4-H82E0) is expressed from human 293 cells (HEK293). It contains AA His 25 - Ser 153 (Accession # AAH67514).
Predicted N-terminus: His 25
This protein carries an Avi tag (Avitag™) at the C-terminus, followed by a polyhistidine tag.
The protein has a calculated MW of 17.6 kDa. The protein migrates as 23-25 kDa under reducing (R) condition, and 20-23 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under non-reducing (NR) condition (SDS-PAGE) due to glycosylation.
Biotinylation of this product is performed using Avitag™ technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin.
0.7-1.0 as determined by the SABA assay / HABA assay / binding ELISA.
>95% as determined by SDS-PAGE.
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.
Contact us for customized product form or formulation.
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
This product is shipped at ambient temperature.
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.