Human CD93/C1qR EZ-Set™ ELISA Kit (DIY Antibody Pairs)

CD93 (Cluster of Differentiation 93) is a protein that in humans is encoded by the CD93 gene. CD93 belongs to the Group XIV C-Type lectin family and is mapped to 20p11.21. The protein encoded by this gene is a cell-surface glycoprotein and type I membrane protein that was originally identified as a myeloid cell-specific marker. The encoded protein was once thought to be a receptor for C1q, but now is thought to instead be involved in intercellular adhesion and in the clearance of apoptotic cells. The intracellular cytoplasmic tail of this protein has been found to interact with moesin, a protein known to play a role in linking transmembrane proteins to the cytoskeleton and in the remodelling of the cytoskeleton. It has also showed that this receptor is a positive marker for all bone marrow-repopulating stem cells because it is expressed on both CD34-negative and CD34-positive stem cells from umbilical cord blood and adult bone marrow. In addition, highly purified lineage-negative cells with the CD93 protein not only have bone marrow-repopulating capacity but also can differentiate into human hepatocytes in vivo.

Complement component C1q receptor; C1q/MBL/SPA receptor; C1qR; C1qR (p) ; C1qRp; CDw93; Complement component 1 q subcomponent receptor 1; Matrix-remodeling-associated protein 4; CD93; CD93; C1QR1, MXRA4

Highly expressed in endothelial cells, platelets, cells of myeloid origin, such as monocytes and neutrophils. Not expressed in cells of lymphoid origin.

Receptor (or element of a larger receptor complex) for C1q, mannose-binding lectin (MBL2) and pulmonary surfactant protein A (SPA) . May mediate the enhancement of phagocytosis in monocytes and macrophages upon interaction with soluble defense collagens. May play a role in intercellular adhesion.

Catalog number Description Quantity Storage of opened/reconstituted material EZ1320-CA Mouse anti-human CD93/C1qR monoclonal 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. EZ1320-DA Biotinylated goat anti-human CD93/C1qR polyclonal antibody (Detection Antibody) 500 μl (recommended dilution 1:100) AR1103 Avidin-Biotin-Peroxidase Complex (ABC) 500 μl (recommended dilution 1:100) EZ1320-ST Lyophilized recombinant human CD93/C1qR standard 10 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 EZ1320-CA Mouse anti-human CD93/C1qR monoclonal 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. EZ1320-DA Biotinylated goat anti-human CD93/C1qR polyclonal antibody (Detection Antibody) 500 μl (recommended dilution 1:100) AR1103 Avidin-Biotin-Peroxidase Complex (ABC) 500 μl (recommended dilution 1:100) EZ1320-ST Lyophilized recombinant human CD93/C1qR standard 10 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 EZ1320-CA Mouse anti-human CD93/C1qR monoclonal 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. EZ1320-CA Mouse anti-human CD93/C1qR monoclonal 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. EZ1320-DA Biotinylated goat anti-human CD93/C1qR polyclonal antibody (Detection Antibody) 500 μl (recommended dilution 1:100) EZ1320-DA Biotinylated goat anti-human CD93/C1qR 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) EZ1320-ST Lyophilized recombinant human CD93/C1qR standard 10 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. EZ1320-ST Lyophilized recombinant human CD93/C1qR standard 10 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. 0.004 0.065 0.126 0.252 0.465 1.152 1.698 1.984 Concentration (pg/ml) 0 78 156 312 625 1250 2500 5000 O.D. 0.004 0.065 0.126 0.252 0.465 1.152 1.698 1.984 Concentration (pg/ml) 0 78 156 312 625 1250 2500 5000 Concentration (pg/ml) 0 78 156 312 625 1250 2500 5000 O.D. 0.004 0.065 0.126 0.252 0.465 1.152 1.698 1.984 O.D. 0.004 0.065 0.126 0.252 0.465 1.152 1.698 1.984

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)