Recombinant Human IL-4

Catalog Number: Y02201

Characteristics:

Source

Chinese Hamster Ovary cell line

Description

Human Interleukin-4 (His25-Ser153)

Accession # P05112

Predicted molecular mass

15 kDa

Specification:

Appearance

White powder, Colorless clear liquid after reconstitution

Purity

≥95%, by SDS-PAGE (under reducing (R) condition, visualized by Coomassie staining)

Endotoxin

≤10 EU/mg by the LAL method

Activity

Measured in a cell proliferation assay using TF-1 cells, The ED₅₀ for this effect is ≤ 0.2 ng/mL.

Formulation

Lyophilized from a 0.22 μm-filtered solution containing PBS, 5% mannitol and 0.01% Tween 80, pH 7.4

Size

50 μg/vial, 1 mg/vial

Handling and Storage:

Reconstitution

It is recommended to redissolve in sterile deionized water.

Shipping

The product is shipped with blue ice.

Storage & Stability

36 months at -20°C to -80°C in lyophilized state

6 months at -20°C to -80°C under sterile conditions after reconstitution

7-10 days at 2°C to 8°C under sterile conditions after reconstitution

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.