Recombinant Human MIP-1β/CCL4 (Recombinant Human Macrophage Inflammatory Protein-1β/CCL4; rHuMIP-1β/CCL4);重组人巨噬细胞炎症蛋白1β/CCL4
Synonyms
Exodus-3; MIP-1 beta; ACT2; ACT-2; AT744.1; C-C motif chemokine 4; chemokine (C-C motif) ligand 4; G-26; G-26 T-lymphocyte-secreted protein; HC21; LAG1; LAG-1; Lymphocyte activation gene 1 protein; Macrophage inflammatory protein 1-beta; MIP1B; MIP1B1; MIP-1-beta; MIP-1-beta(1-69); PAT 744; Protein H400; SCYA2; SCYA4; secreted protein G-26; SIS-gamma; small inducible cytokine A4 (homologous to mouse Mip-1b); Small-inducible cytokine A4; T-cell activation protein 2
Purity
>96% by SDS-PAGE and HPLC analyses.
Biological Activity
Fully biologically active when compared to standard. The biological activity determined by a chemotaxis bioassay using human peripheral blood monocytes is in a concentration range of 5.0-20ng/ml.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Formulation
Lyophilized from a 0.2μm filtered concentrated solution in 20mM PB, pH7.4, 150mM NaCl.
Endotoxin
Less than 1EU/μg of rHuMIP-1β/CCL4 as determined by LAL method.
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 0.1-1.0mg/ml. Stock solutions should be apportioned into working aliquots and stored at ≤-20℃. Further dilutions should be made in appropriate buffered solutions.
Category
Chemokines
Background
CCL4 encoded by the CCL4 gene, also known as Macrophage Inflammatory Protein-1β (MIP-1β) is a CC chemokine with specificity for CCR5 receptors and it is a major HIV-suppressive factor produced by CD8+ T cells. It is a monokine with inflammatory and chemokinetic properties. Recombinant CCL4 induces a dose-dependent inhibition of different strains of HIV-1, HIV-2, and simian immunodeficiency virus (SIV). Specifically, MIP-1-beta (3-69) is also a ligand for CCR1 and CCR2 isoform B. Recombinant human CCL4 contains 69 amino acids and it shares 77% and 80%a.a. sequence identity with murine and rat CCL4, respectively. Both human and murine MIP-1α and MIP-1β are active on human and murine hematopoietic cells.