Human CCL22/MDC Antibody

(1 citations)   
  • Species Reactivity
    Human
  • Specificity
    Detects human CCL22/MDC in direct ELISAs and Western blots. In direct ELISAs, approximately 50% cross-reactivity with recombinant mouse MDC and 15% cross-reactivity with recombinant human MPIF-1 is observed.
  • Source
    Polyclonal Chicken IgY
  • Purification
    Antigen Affinity-purified from egg yolks
  • Immunogen
    E. coli-derived recombinant human CCL22/MDC (R&D Systems, Catalog # 336-MD)
    Gly25-Gln93
    Accession # O00626
  • Formulation
    Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
  • Endotoxin Level
    <0.10 EU per 1 μg of the antibody by the LAL method.
  • Label
    Unconjugated
Applications
  •  
    Recommended
    Concentration
    Sample
  • Western Blot
    0.1 µg/mL
    Recombinant Human CCL22/MDC (Catalog # 336-MD)
  • Neutralization
    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 0.03 µg/mL Recombinant Human 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.
Data Examples
Chemotaxis Induced by CCL22/MDC and Neutralization by Human CCL22/MDC Antibody. Recombinant Human CCL22/MDC (Catalog #
336-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 Human CCL22/MDC (0.03 µg/mL) is neutralized (green line) by increasing concentrations of Chicken Anti-Human CCL22/MDC Antigen Affinity-purified Polyclonal Antibody (Catalog # AF336). The ND50 is typically 0.4-2.0 µg/mL.
Preparation and Storage
  • Reconstitution
    Reconstitute at 0.2 mg/mL in sterile PBS.
  • Shipping
    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: CCL22/MDC

CCL22, also named stimulated T cell chemotactic protein (STCP-1), is a CC chemokine initially isolated from clones of monocyte-derived macrophages. Human CCL22 cDNA encodes a precursor protein of 93 amino acid residues with a 24 amino acid residue predicted signal peptide that is cleaved to yield a 69 amino acid residue mature 8 kDa protein. At the amino acid sequence level, CCL22 shows less than 35% identity to other CC chemokine family members. Human CCL22 is expressed in dendritic cells, macrophages and activated monocytes. In addition, CCL22 expression is also detected in the tissues of thymus, lymph node and appendix. The gene for human CCL22 has been mapped to chromosome 16 rather than chromosome 17 where the genes for many human CC chemokines are clustered. Recombinant or chemically synthesized mature CCL22 has been shown to induce chemotaxis or Ca2+ mobilization in dendritic cells, IL-2 activated NK cells, and activated T lymphocytes. A CD8+ T lymphocyte-derived secreted soluble activity that suppresses infection by primary non-syncytium-inducing and syncytium-inducing HIV-1 isolates and the T cell line-adapted isolate HIV-1IIIB, has been identified as CCL22. Based on amino-terminal sequence analysis, the major CD8+ T lymphocyte-derived CCL22 protein yielded an amino-terminal sequence of YGANM, which is two amino acid residues shorter than the predicted mature CCL22. The difference in potency between the two mature CCL22 isoforms has not been determined.

  • Entrez Gene IDs:
    6367 (Human); 20299 (Mouse)
  • Alternate Names:
    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
Related Research Areas
Citations:

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.

1 Citations: Showing 1 - 1

  1. Expression and regulation of chemokines in murine and human type 1 diabetes.
    Authors: Sarkar SA, Lee CE, Victorino F, Nguyen TT, Walters JA, Burrack A, Eberlein J, Hildemann SK, Homann D
    Diabetes, 2012;61(2):436-46.
    Species: Human
    Sample Type: Whole Cells
    Application: Flow
Isotype Controls
Description Application Cat# Citations Images  

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