Recombinant Mouse CCL22/MDC Protein (Catalog # 439-MD)
Measured by its ability to neutralize CCL22/MDC-induced chemotaxis in the BaF3 mouse pro‑B cell line transfected with human CCR4. The Neutralization Dose (ND50) is typically 0.4-2.0 µg/mL in the presence of 10 ng/mL Recombinant Mouse CCL22/MDC.
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Chemotaxis Induced by CCL22/MDC and Neutralization by Mouse CCL22/MDC Antibody. Recombinant Mouse CCL22/MDC (Catalog # 439-MD) chemoattracts the BaF3 mouse pro‑B cell line transfected with human CCR4 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 Mouse CCL22/MDC (10 ng/mL) is neutralized (green line) by increasing concentrations of Mouse CCL22/MDC Monoclonal Antibody (Catalog # MAB4391). The ND50 is typically 0.4-2.0 µg/mL.
Preparation and Storage
Reconstitute at 0.5 mg/mL in sterile PBS.
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.
CCL22, also known as ABCD-1 and MDC (macrophage-derived chemokine), is a CC chemokine cloned from activated mouse B cells. Mouse CCL22 cDNA encodes a precursor protein of 92 amino acid (aa) residues with a 24 aa residue predicted signal peptide that is cleaved to yield a 68 aa residue mature 7.8 kDa protein. At the amino acid sequence level, mouse and human CCL22 share 64% identity and 83% similarity. The genomic organization of the mouse and human CCL22 genes are very similar, exhibiting sequence identity at the intron-exon boundaries. Mouse CCL22 is expressed at high levels in dendritic cells and activated B lymphocytes. Low levels of mouse CCL22 mRNA are also detectable in lung, unstimulated spleen cells, lymph node cells and in thymocytes. CCL22 is a functional ligand for the CC chemokine receptor 4. Recombinant or chemically synthesized mature mouse CCL22 has been shown to induce chemotaxis or Ca2+ mobilization in activated mouse and human T cells.
Schaniel, C. et al. (1998) J. Exp. Med. 188:451.
Imai, T. et al. (1998) J. Biol. Chem. 273:1764.
Godiska, R. et al. (1997) J. Exp. Med. 185:1595.
Chang, M-S. et al. (1997) J. Biol. Chem. 272:25229.
Entrez Gene IDs:
6367 (Human); 20299 (Mouse)
A-152E5.1; ABCD-1; CC chemokine STCP-1; C-C motif chemokine 22; CCL22; chemokine (C-C motif) ligand 22; DC/B-CK; Macrophage-derived chemokine; MDC; MDCStimulated T-cell chemotactic protein 1; MGC34554; SCYA22MDC(1-69); small inducible cytokine A22; small inducible cytokine subfamily A (Cys-Cys), member 22; Small-inducible cytokine A22; STCP-1; stimulated T cell chemotactic protein 1
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