Recombinant Rat CCL20/MIP‑3 alpha (Catalog # 540-RM)
Measured by its ability to neutralize CCL20/MIP‑3 alpha -induced chemotaxis in the BaF3 mouse pro‑B cell line transfected with human CCR6. The Neutralization Dose (ND50) is typically 30-75 µg/mL in the presence of 5 µg/mL Recombinant Rat CCL20/MIP‑3 alpha.
Please Note: Optimal dilutions should be determined by each laboratory for each application.
are available in the Technical Information section on our website.
Chemotaxis Induced by CCL20/MIP‑3 alpha and Neutralization by Rat CCL20/MIP‑3 alpha Antibody.
Recombinant Rat CCL20/MIP‑3 alpha (Catalog # 540-RM) chemoattracts the BaF3 mouse pro‑B cell line transfected with human CCR6 in a dose-dependent manner (orange line). The amount of cells that migrated through to the lower chemotaxis chamber was measured by Resazurin (Catalog # AR002). Chemotaxis elicited by Recombinant Rat CCL20/MIP‑3 alpha (5 µg/mL) is neutralized (green line) by increasing concentrations of Rat CCL20/MIP‑3 alpha Antigen Affinity-purified Polyclonal Antibody (Catalog # AF540). The ND50 is typically 30-75 µg/mL.
Preparation and Storage
Reconstitute at 0.2 mg/mL in sterile PBS.
Reconstitution Buffer Available
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.
Background: CCL20/MIP-3 alpha
CCL20, also known as MIP-3 alpha, LARC (Liver and Activation-regulated Chemokine) and as Exodus, is one of many novel beta chemokines identified through bioinformatics. Rat CCL20 cDNA encodes a 96 amino acid (aa) precursor protein with a 25 aa putative signal peptide that is predicted to be cleaved to form the 71 aa mature secreted protein. CCL20 is distantly related to other beta chemokines (20-28% aa sequence identity). Rat MIP-3 alpha shares approximately 70 and 61% aa sequence homology with mouse and human CCL20, respectively.
CCL20 has been shown to be expressed predominantly in lymph nodes, appendix, PBL, fetal liver, fetal lung, and epithelial cells of intestinal tissues. The expression of CCL20 is strongly up-regulated by inflammatory signals and down-regulated by the anti-inflammatory cytokine IL-10. Synthetic or recombinant CCL20 has been shown to be chemotactic for lymphocytes and dendritic cells, and inhibits proliferation of myeloid progenitors in colony formation assays. CCL20 has now been shown to be a unique functional ligand for CCR-6 (previously referred to as GPR-CY4, CKR-L3, or STRL22 orphan receptor), a chemokine receptor that is selectively and highly expressed in human dendritic cells derived from CD34+ cord blood precursors.
Entrez Gene IDs:
6364 (Human); 20297 (Mouse); 29538 (Rat)
beta chemokine exodus-1; Beta-chemokine exodus-1; CC chemokine LARC; C-C motif chemokine 20; CCL20; chemokine (C-C motif) ligand 20; CKb4; exodus-1; LARC; LARCLiver and activation-regulated chemokine; MIP3 alpha; MIP-3 alpha; MIP-3a; MIP-3-alpha; MIP3AMacrophage inflammatory protein 3 alpha; SCYA20Small-inducible cytokine A20; small inducible cytokine subfamily A (Cys-Cys), member 20; ST38
R&D Systems personnel manually curate a database that contains references using R&D Systems products.
The data collected includes not only links to publications in PubMed,
but also provides information about sample types, species, and experimental conditions.
Submit a review and receive a $25US/€18/£15/$25CAN amazon gift card if you include an image - $10US/€7/£6/$10CAN Amazon card for reviews without an image. Limited to verified customers in USA, Canada and Europe.