Determined by its ability to chemoattract human blood monocytes using a concentration range of 5.0-20.0 ng/ml,corresponding to a specific activity of > 5.0×104 units/mg.
Pureté
> 96 % by SDS-PAGE and HPLC analyses.
niveau d'endotoxine
Level Less than 1EU/µg of rHuMIP-1 beta /CCL4 as determined by LAL method
CCL4
Origine: Porc
Hôte: Escherichia coli (E. coli)
Recombinant
> 97 %
WB, SDS, Imm, PC
Restrictions
For Research Use only
Format
Lyophilized
Reconstitution
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at < -20 °C. Further dilutions should be made in appropriate buffered solutions.
Both MIP-1 alpha and MIP-1 beta are structurally and functionally related CC chemokines. They participate in the host response to invading bacterial, viral, parasite and fungal pathogens by regulating the trafficking and activation state of selected subgroups of inflammatory cells e.g. macrophages, lymphocytes and NK cells. While both MIP-1 alpha and MIP-1 beta exert similar effects on monocytes their effect on lymphocytes differ, with MIP-1 alpha selectively attracting CD8+ lymphocytes and MIP-1 beta selectively attracting CD4+ lymphocytes. Additionally, MIP-1 alpha and MIP-1 beta have also been shown to be potent chemoattractants for B cells, eosinophils and dendritic cells. Both human and mouse MIP-1 alpha and MIP-1 beta are active on human and mouse hematopoietic cells. Synonym: MIP-1 beta /CCL4, Human. Formulation: Lyophilized from a 0.2µm filtered concentrated solution in 20mM Tris, 500mM NaCl.
Poids moléculaire
7.6 kDa, a single non-glycosylated polypeptide chain containing 69 amino acids.