Reactivity | MuSpecies Glossary |
Applications | Bioactivity |
Details of Functionality | Measured by its ability to chemoattract 5-10 day cultured human peripheral blood lymphocytes (PBL). The ED50 for this effect is 0.03‑0.1 µg/mL. Measured by its ability to chemoattract BaF3 mouse pro‑B cells transfected with human CCR7. The ED50 for this effect is 3-15 ng/mL. |
Source | E. coli-derived mouse CCL19/MIP-3 beta protein Gly26-Val107-Leu-Glu, with a substitution of Ser108LeuGlu |
Accession # | |
N-terminal Sequence | Gly26 |
Protein/Peptide Type | Recombinant Proteins |
Gene | Ccl19 |
Purity | >97%, by SDS-PAGE under reducing conditions and visualized by silver stain |
Endotoxin Note | <0.01 EU per 1 μg of the protein by the LAL method. |
Dilutions |
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Theoretical MW | 9.4 kDa. Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors. |
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Publications |
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Storage | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
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Buffer | Lyophilized from a 0.2 μm filtered solution in Acetonitrile and TFA with BSA as a carrier protein. |
Purity | >97%, by SDS-PAGE under reducing conditions and visualized by silver stain |
Reconstitution Instructions | Reconstitute at 10 μg/mL in sterile PBS containing at least 0.1% human or bovine serum albumin. |
CCL19/MIP-3 beta , also known as ELC (EBI1-Ligand Chemokine), is a reported beta chemokine that binds specifically to the chemokine receptor CCR‑7/EBI‑1/BLR‑2. Mouse (human) MIP-3 beta cDNA encodes a 108 (98) amino acid residue precursor protein with a predicted 25 (21) aa residue signal peptide that is cleaved to form the 83 (77) aa residue mature secreted protein. MIP-3 beta is distantly related to other beta chemokines (20 - 30% aa sequence identity). Mouse MIP-3 beta shares 83% aa sequence homology with human MIP-3 beta . MIP-3 beta has been shown to be constitutively expressed in various lymphoid tissues (including thymus, lymph nodes, appendix, and spleen) in dendritic cells within the T-cell zone. The expression of MIP-3 beta is down‑regulated by the anti‑inflammatory cytokine IL‑10. Recombinant MIP-3 beta has been shown to be chemotactic for T cells and B cells. The MIP-3 beta receptor (CCR-7/EBI-1/BLR-2) is expressed in various lymphoid tissues and activated B and T lymphocytes. CCR-7 is also strongly up-regulated in B cells infected with Epstein-Barr virus and T cells infected with herpesvirus 6 or 7.
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