Human IL4 protein

• Catalog Number: orb80061
• Category: Proteins
• Description: Human IL4 protein
• Tested applications: FA, HPLC, SDS-PAGE
• Purity: > 98.0% as determined by RP-HPLC and analysis by SDS-PAGE
• Conjugation: Unconjugated
• Target: Human IL4
• Solubility (25°C): It is recommended to reconstitute the lyophilized Interleukin-4 in sterile H₂O not less than 100ug/ml, which can then be further diluted to other aqueous solutions.
• Protein Sequence: The sequence of the first five N-terminal amino acids was determined and was found to be Met-His-Lys-Cys-Asp.
• Biological Activity: The ED50 as determined by the dose-dependant stimulation of TF-1 cells is 0.2 ng/ml, corresponding to Specific Activity of 5x1,000,000 IU/mg.
• Storage: Store at 4°C for up to two weeks. For long term storage, aliquot and store at -20°C, avoid freeze/thaw cycles.
• Buffer/Preservatives: Lyophilized from concentrated (1mg/ml) solution in water containing no additives.
• Alternative names: B cell growth factor 1 protein, B cell IgG differe
• Note: For research use only
• Application notes: Experiment Notes: Protein quantitation was carried out by two independent methods 1. UV spectroscopy at 280 nm using the absorbency value of 0.594 as the extinction coefficient for 0.1% (1mg/ml) solution. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics). 2. Analysis by RP-HPLC, using standard solution of IL-4 as Reference Standard.
• Expiration Date: 6 months from date of receipt.

SDS-PAGE analysis of Human IL4 protein