Active Recombinant Human IL4 protein

• Cat.No.: IL4-120H
• Product Overview: Recombinant Human IL4 protein (His25-Ser153) was expressed in human 293 cells (HEK293).

Specification

• Source: HEK293
• Species: Human
• Tag: N/A
• Form: Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.
• Bio-activity: Human IL-4, premium grade situmulates proliferation of TF-1 cells. The specific activity of Human IL-4, premium grade is > 1.0ⅹ10^7 IU/mg, which is calibrated against human IL4 WHO International Stand (NIBSC code: 88/656).
• Molecular Mass: The protein has a calculated MW of 15.0 kDa. The protein migrates as 15 kDa and 19 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
• Protein Length: His 25 - Ser 153
• Endotoxin: Less than 0.1 EU per μg by the LAL method.
• Purity: >90% as determined by SDS-PAGE.
• Storage: For long term storage, the product should be stored at lyophilized state at -20 centigrade or lower.
  Please avoid repeated freeze-thaw cycles.
  This product is stable after storage at:
  -20 centigrade to -70 centigrade for 12 months in lyophilized state;
  -70 centigrade for 3 months under sterile conditions after reconstitution.
• Reconstitution: It is recommended that sterile water be added to the vial to prepare a stock solution of 0.2 ug/ul. Centrifuge the vial at 4℃ before opening to recover the entire contents.

Gene Information

• Gene Name: IL4 interleukin 4 [ Homo sapiens ]
• Official Symbol: IL4
• Synonyms: IL4; interleukin 4; interleukin-4; B cell growth factor 1; B_cell stimulatory factor 1; BCGF 1; BCGF1; BSF1; IL 4; lymphocyte stimulatory factor 1; MGC79402; binetrakin; pitrakinra; IL-4; BSF-1; BCGF-1
• Gene ID: 3565
• mRNA Refseq: NM_000589
• Protein Refseq: NP_000580
• MIM: 147780
• UniProt ID: P05112