RecombinantIL-19, Mouse

• Description:

  Interleukin-19 (IL-19) is a cytokine belonging to the interleukin family. Structurally, IL-19 is grouped into the IL-10 sub-family, which also includes IL-20, IL-22, IL-24, and IL-26. In contrast to IL-10, which exists as a homodimer, IL-19 is stable and active as a monomer in vivo. IL-19 functions through the receptor complex composed of IL-20 Receptor α and IL-20 Receptor β, which is also utilized by IL-20 and IL-24. IL-19 is produced by active monocytes and stimulated synergistically by IL-17 and IL-13. The functions of IL-19 are to promote the development and function of Th2 cells and to enhance the production of Th2 cytokines. IL-19 is implicated in aging, vascular disease, Type I diabetes, and rheumatoid arthritis. Recombinant mouse Interleukin-19 (rmIL-19) produced in E.coli is a single non-glycosylated polypeptide chain containing of153 amino acids. A fully biologically active molecule, rmIL-19 has a molecular mass of 17.7 kDa analyzed by non-reducing SDS-PAGE and is obtained by proprietary chromatographic techniques at GenScript.

• Endotoxin:

  < 0.2 EU/μg, determined by LAL method.

• Purity:

  > 95% by SDS-PAGE analysis.

• Bioactivity:

  ED50 < 50 ng/mL, measured by a cell proliferation assay using MCF-7 cells, corresponding to a specific activity of > 2x 10ˆ4 units/mg.

• Reconstitution:

  Reconstituted in 50 mM acetic acid at 50 μg/mL.

• Molecular Weight:

  17.7 kDa, observed by non-reducing SDS-PAGE.

• Storage Conditions:

  Lyophilized recombinant mouse Interleukin-19 (rmIL-19) remains stable up to 6 months at -80°C from date of receipt. Upon reconstitution, rmIL-19 remains stable up to 2 weeks at 4°C or up to 3 months at -20°C.

• Appearance:

  Sterile Filtered White lyophilized (freeze-dried) powder.

• Formulation:

  Lyophilized after extensive dialysis against 50mM acetic acid.

• Host or Source:

  Escherichia coli.

• Recommended Usage:

  This material is offered by USA Bioworld biotech for research, laboratory or further evaluation purposes. For research use only.

• CAS Number:

  9000-83-3

• AA Sequence:

  MLRRCLISV DMRLIEKSFH EIKRAMQTKD TFKNVTILSL ENLRSIKPGD VCCMTNNLLT FYRDRVFQDH QERSLEVLRR ISSIANSFLC VQKSLERCQV HRQCNCSQEA TNATRIIHDN YNQLEVSSAA LKSLGELNIL LAWIDRNHLE TPAA