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Goat Anti-Human Chemokine (C-C Motif) Ligand 22 (CCL22)

Biotin

(MDC, A-152E5.1, ABCD-1, DC/B-CK, MGC34554, SCYA22, STCP-1)

Polyclonal Antibody

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Prod. No.:	M129
Host:	Goat
Pkg. Size:	50 µg, 1 mg
Storage:	-20°C to -70°C Detailed storage instructions below.

Description

Specificity:

Goat Anti-Human Chemokine (C-C Motif) Ligand 22 (CCL22) recognizes Human CCL22. This antigen affinity purified polyclonal antibody was purified using a proprietary chromatographic technique that includes covalently immobilizing the antigen proteins or peptides to agarose based beads. This purification method enhances specificity, reduces nonspecific binding of extraneous IgG and provides you with the most reliable reagent available for your early discovery research.

Background:

Chemokine (C-C motif) ligand 22, also known as CCL22 is secreted by dendritic cells and macrophages, and elicits its effects on its target cells by interacting with cell surface chemokine receptors such as CCR4.¹ CCL22 selectively chemoattract Th2 cytokine-producing cells^2,3 and acts as an important activator of eosinophils once thes cells have migrated into tissue.⁴

Known Species Cross Reactivity: Hu+

Immunogen

Purified Recombinant Human CCL22 (>98%)

Formulation

This biotinylated antigen affinity purified polyclonal antibody has been 0.2 µm filtered and lyophilized from modified Dulbecco’s phosphate buffered saline (1X PBS) pH 7.2 – 7.3 containing 50 µg of bovine serum albumin per µg of antibody with no calcium, magnesium, or preservatives present.

Reconstitution

We suggest aseptically reconstituting this biotinylated, lyophilized, antigen affinity purified polyclonal antibody with 1 ml of sterile 20 mM Trizma base, 0.15 M sodium chloride (1X Tris Buffered Saline) pH 7.2-7.3, containing 0.1% w/v bovine serum albumin (BSA). This will result in a final biotinylated antibody concentration of 50 µg/ml.

Storage and Stability

The lyophilized, biotinylated antigen affinity purified polyclonal antibody can be stored desiccated at -20°C to -70°C for up to twelve months from date of receipt. The reconstituted bioin conjugate can be stored for at least four weeks at 2-8°C. For long-term storage of the reconstituted conjugate, aseptically aliquot into working volumes and store at -20°C to -70°C in a manual defrost freezer. Avoid Repeated Freeze Thaw Cycles. No detectable loss of activity was observed after six months.

Reported Applications

ELISA Det, WB,

Western Blotting: To detect Human CCL22 this biotin conjugate can be used at a concentration of 0.1 - 0.2 µg/ml. This biotin conjugate should be used in conjunction with compatible second-step reagents such as UltraAvidin™- Horseradish Peroxidase (HRPO) (Leinco Prod. No.: A106) and a chromogenic substrate such as TMB HRPO Membrane/IHC Substrate UltraSensitive™ One Component "Ready Use" (Leinco Prod. No.: T343). The detection limit for Human CCL22 is 20 ng/lane under either reducing or non-reducing conditions. The sensitivity of detection may increase up to 50 fold when a chemiluminescent substrate is used. A suitable Western blotting control is Recombinant Human CCL22 (Leinco Prod. No.: M171).

ELISA Sandwich Assay: This antibody can be used as the detection antibody in a sandwich ELISA at a concentration of approximately 50nµg/ml when used in conjunction with Anti-Human CCL22 (Leinco Prod. No.: M1092) as the capture antibody at 2 µg/ml and an optimal second step reagent such as UltraAvidin™- Horseradish Peroxidase (HRPO) (Leinco Prod. No.: A106) for the detection of Human CCL22.

Each investigator should determine their own optimal working dilution for specific applications.

Country of Origin

USA

References

1. Sozzani S. et al. (2001) Eur. J. Immunol. 31: 812
2. Elias CG. et al. (1998) J Immunol. 161: 5027
3. Gray PW. et al. (1997) J Exp Med. 185: 1604
4. Teixeira MM. et al. (2003) J Leuko Biol. 73: 356