Human Chemerin/RARRES2 EZ-Set™ ELISA Kit (DIY Antibody Pairs)

Chemerin, also known as RARRES2 or TIG2, is a protein that in humans is encoded by the RARRES2 gene. It is mapped to 7q36.1. Chemerin is a potent chemoattractant specific for antigen-presenting cells that requires proteolytic activation and acts as a ligand for the G protein-coupled receptor CMKLR1 (also known as ChemR23) . It is a 14 kDa protein secreted in an inactive form as prochemerin and is activated through cleavage of the C-terminus by inflammatory and coagulation serine proteases. Chemerin was found to stimulate chemotaxis of dendritic cells and macrophages to the site of inflammation. What’s more, the active protein has several roles, including that as an adipokine, and is truncated on both termini from the proprotein.

Expressed at the highest levels in placenta, liver, and white adipose tissue (WAT), and to a lesser extent in many other tissues such as lung, brown adipose tissue, heart, ovary, kidney, skeletal muscle and pancreas. Within WAT, expression is enriched in adipocytes as compared to the stromal vascular fraction. Expression and secretion increases dramatically with adipogenesis. Highly expressed in skin (basal and suprabasal layers of the epidermis, hair follicles and endothelial cells) . Expression is elevated in numerous metabolic and inflammatory diseases including psoriasis, obesity, type 2 diabetes, metabolic syndrome and cardiovascular disease. .

Cancer, Cardiovascular, Lipid and Lipoprotein Metabolism, Lipid Metabolism, Lipids/Lipoproteins, Metabolic Signaling Pathways, Metabolism, Pathways and Processes, Signal Transduction

Adipocyte-secreted protein (adipokine) that regulates adipogenesis, metabolism and inflammation through activation of the chemokine-like receptor 1 (CMKLR1) . Its other ligands include G protein-coupled receptor 1 (GPR1) and chemokine receptor-like 2 (CCRL2) . Positively regulates adipocyte differentiation, modulates the expression of adipocyte genes involved in lipid and glucose metabolism and might play a role in angiogenesis, a process essential for the expansion of white adipose tissue. Also acts as a proinflammatory adipokine, causing an increase in secretion of proinflammatory and prodiabetic adipokines, which further impair adipose tissue metabolic function and have negative systemic effects including impaired insulin sensitivity, altered glucose and lipid metabolism, and a decrease in vascular function in other tissues. Can have both pro- and anti-inflammatory properties depending on the modality of enzymatic cleavage by different classes of proteases. Acts as a chemotactic factor for leukocyte populations expressing CMKLR1, particularly immature plasmacytoid dendritic cells, but also immature myeloid DCs, macrophages and natural killer cells. Exerts an anti-inflammatory role by preventing TNF/TNFA-induced VCAM1 expression and monocytes adhesion in vascular endothelial cells. The effect is mediated via inhibiting activation of NF-kappa-B and CRK/p38 through stimulation of AKT1/NOS3 signaling and nitric oxide production. Its dual role in inflammation and metabolism might provide a link between chronic inflammation and obesity, as well as obesity- related disorders such as type 2 diabetes and cardiovascular disease. Exhibits an antimicrobial function in the skin. .

Catalog number Description Quantity Storage of opened/reconstituted material EZ1329-CA Goat anti-human Chemerin/RARRES2 polyclonal antibody (Capture Antibody) 500 μl, 4 μg/mL (recommended dilution 1:100) Store undiluted at 4°C for 1 month or at -20°C for 3 months provided this is within the expiration date of the kit. EZ1329-DA Biotinylated goat anti-human Chemerin/RARRES2 polyclonal antibody (Detection Antibody) 500 μl (recommended dilution 1:100) AR1103 Avidin-Biotin-Peroxidase Complex (ABC) 500 μl (recommended dilution 1:100) EZ1329-ST Lyophilized recombinant human Chemerin/RARRES2 standard 50 ng/tubex3 Discard the standard stock solution after 12 hours at 4°C. May be stored at -20°C for 48 hours provided this is within the expiration date of the kit. Catalog number Description Quantity Storage of opened/reconstituted material EZ1329-CA Goat anti-human Chemerin/RARRES2 polyclonal antibody (Capture Antibody) 500 μl, 4 μg/mL (recommended dilution 1:100) Store undiluted at 4°C for 1 month or at -20°C for 3 months provided this is within the expiration date of the kit. EZ1329-DA Biotinylated goat anti-human Chemerin/RARRES2 polyclonal antibody (Detection Antibody) 500 μl (recommended dilution 1:100) AR1103 Avidin-Biotin-Peroxidase Complex (ABC) 500 μl (recommended dilution 1:100) EZ1329-ST Lyophilized recombinant human Chemerin/RARRES2 standard 50 ng/tubex3 Discard the standard stock solution after 12 hours at 4°C. May be stored at -20°C for 48 hours provided this is within the expiration date of the kit. Catalog number Description Quantity Storage of opened/reconstituted material Catalog number Description Quantity Storage of opened/reconstituted material EZ1329-CA Goat anti-human Chemerin/RARRES2 polyclonal antibody (Capture Antibody) 500 μl, 4 μg/mL (recommended dilution 1:100) Store undiluted at 4°C for 1 month or at -20°C for 3 months provided this is within the expiration date of the kit. EZ1329-CA Goat anti-human Chemerin/RARRES2 polyclonal antibody (Capture Antibody) 500 μl, 4 μg/mL (recommended dilution 1:100) Store undiluted at 4°C for 1 month or at -20°C for 3 months provided this is within the expiration date of the kit. EZ1329-DA Biotinylated goat anti-human Chemerin/RARRES2 polyclonal antibody (Detection Antibody) 500 μl (recommended dilution 1:100) EZ1329-DA Biotinylated goat anti-human Chemerin/RARRES2 polyclonal antibody (Detection Antibody) 500 μl (recommended dilution 1:100) AR1103 Avidin-Biotin-Peroxidase Complex (ABC) 500 μl (recommended dilution 1:100) AR1103 Avidin-Biotin-Peroxidase Complex (ABC) 500 μl (recommended dilution 1:100) EZ1329-ST Lyophilized recombinant human Chemerin/RARRES2 standard 50 ng/tubex3 Discard the standard stock solution after 12 hours at 4°C. May be stored at -20°C for 48 hours provided this is within the expiration date of the kit. EZ1329-ST Lyophilized recombinant human Chemerin/RARRES2 standard 50 ng/tubex3 Discard the standard stock solution after 12 hours at 4°C. May be stored at -20°C for 48 hours provided this is within the expiration date of the kit.

Store at 4°C for 6 months, at -20°C for 12 months. Avoid multiple freeze-thaw cycles (Ships with gel ice, can store for up to 3 days in room temperature. Freeze upon receiving.)

Concentration (pg/ml) 0 78 156 312 625 1250 2500 5000 O.D. 0.000 0.375 0.700 0.852 1.200 1.472 1.858 2.042 Concentration (pg/ml) 0 78 156 312 625 1250 2500 5000 O.D. 0.000 0.375 0.700 0.852 1.200 1.472 1.858 2.042 Concentration (pg/ml) 0 78 156 312 625 1250 2500 5000 Concentration (pg/ml) 0 78 156 312 625 1250 2500 5000 O.D. 0.000 0.375 0.700 0.852 1.200 1.472 1.858 2.042 O.D. 0.000 0.375 0.700 0.852 1.200 1.472 1.858 2.042

1. Microplate reader in standard size. 2. Automated plate washer. 3. Incubator. 4. Adjustable pipettes and pipette tips. Multichannel pipettes are recommended in the condition of large amount of samples in the detection. 5. Clean tubes and Eppendorf tubes. 6. 96 well microplate (Cat# AR1100) 7. Plate Sealers. 8. Capture Antibody Diluent: PBS. 9. Reagent Diluent: 1% BSA in PBS, pH 7.2-7.4, 0.2 μm filtered. 10. Substrate Solution: Tetramethylbenzidine (Cat# AR1104) 11. Stop Solution: 2 N H2SO4 (Cat# AR1105) 12. Wash Buffer (PBS and PBS-T) . Recipes: PBS: 8g NaCl, 0.2g KCl, 1.15g Na2HPO4, 0.2g KH2PO4, adjust the total volume to 1 L with distilled water, pH 7.2-7.4, 0.2 μm filtered. PBS-T: 0.1% Tween® 20 in PBS, pH 7.2-7.4. *Item 6 – 12 are included in the EZ Set Accessory Kit (EZA001)