Human Reg3A DuoSet ELISA Summary
* Provided that the recommended microplates, buffers, diluents, substrates and solutions are used, and the assay is run as summarized in the Assay Procedure provided.
Product Features
- Optimized capture and detection antibody pairings with recommended concentrations save lengthy development time
- Development protocols are provided to guide further assay optimization
- Assay can be customized to your specific needs
- Economical alternative to complete kits
Kit Content
- Capture Antibody
- Detection Antibody
- Recombinant Standard
- Streptavidin conjugated to horseradish-peroxidase (Streptavidin-HRP)
Other Reagents Required
DuoSet Ancillary Reagent Kit 2 (5 plates): (Catalog # DY008) containing 96 well microplates, plate sealers, substrate solution, stop solution, plate coating buffer (PBS), wash buffer, and Reagent Diluent Concentrate 2.
The components listed above may be purchased separately:
PBS: (Catalog # DY006), or 137 mM NaCl, 2.7 mM KCl, 8.1 mM Na2HPO4, 1.5 mM KH2PO4, pH 7.2 - 7.4, 0.2 µm filtered
Wash Buffer: (Catalog # WA126), or 0.05% Tween® 20 in PBS, pH 7.2-7.4
Reagent Diluent: (Catalog # DY995), or 1% BSA in PBS, pH 7.2-7.4, 0.2 µm filtered
Substrate Solution: 1:1 mixture of Color Reagent A (H2O2) and Color Reagent B (Tetramethylbenzidine) (Catalog # DY999)
Stop Solution: 2 N H2SO4 (Catalog # DY994)
Microplates: R&D Systems (Catalog # DY990)
Plate Sealers: ELISA Plate Sealers (Catalog # DY992)
Scientific Data
Product Datasheets
Preparation and Storage
Background: Reg3A
The Reg family constitutes a subset of the calcium-dependent C-type lectin superfamily. These small, secreted proteins have been implicated in a range of physiological processes including acting as acute phase reactants, lectins, survival/growth factors for insulin-producing pancreatic beta-cells, neural cells, and epithelial cells of the digestive system. Studies also indicate a role for Reg family members in tumor formation and indicate their potential for use as biomarkers of carcinogenesis.
Reg3A also named lithostathine 3 and pancreatitis-associated protein 2, belongs to the Regenerating gene family of C-type lectins. Reg3 is overexpressed during the acute phase of pancreatitis.
Assay Procedure
GENERAL ELISA PROTOCOL
Plate Preparation
- Dilute the Capture Antibody to the working concentration in PBS without carrier protein. Immediately coat a 96-well microplate with 100 μL per well of the diluted Capture Antibody. Seal the plate and incubate overnight at room temperature.
- Aspirate each well and wash with Wash Buffer, repeating the process two times for a total of three washes. Wash by filling each well with Wash Buffer (400 μL) using a squirt bottle, manifold dispenser, or autowasher. Complete removal of liquid at each step is essential for good performance. After the last wash, remove any remaining Wash Buffer by aspirating or by inverting the plate and blotting it against clean paper towels.
- Block plates by adding 300 μL of Block Buffer to each well. Incubate at room temperature for a minimum of 1 hour.
- Repeat the aspiration/wash as in step 2. The plates are now ready for sample addition.
Assay Procedure
- Add 100 μL of sample or standards in Reagent Diluent, or an appropriate diluent, per well. Cover with an adhesive strip and incubate 2 hours at room temperature.
- Repeat the aspiration/wash as in step 2 of Plate Preparation.
- Add 100 μL of the Detection Antibody, diluted in Reagent Diluent, to each well. Cover with a new adhesive strip and incubate 2 hours at room temperature.
- Repeat the aspiration/wash as in step 2 of Plate Preparation.
- Add 100 μL of the working dilution of Streptavidin-HRP to each well. Cover the plate and incubate for 20 minutes at room temperature. Avoid placing the plate in direct light.
- Repeat the aspiration/wash as in step 2.
- Add 100 μL of Substrate Solution to each well. Incubate for 20 minutes at room temperature. Avoid placing the plate in direct light.
- Add 50 μL of Stop Solution to each well. Gently tap the plate to ensure thorough mixing.
- Determine the optical density of each well immediately, using a microplate reader set to 450 nm. If wavelength correction is available, set to 540 nm or 570 nm. If wavelength correction is not available, subtract readings at 540 nm or 570 nm from the readings at 450 nm. This subtraction will correct for optical imperfections in the plate. Readings made directly at 450 nm without correction may be higher and less accurate.
Citations for Human Reg3A DuoSet ELISA
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.
7
Citations: Showing 1 - 7
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Dermal injury drives a skin to gut axis that disrupts the intestinal microbiome and intestinal immune homeostasis in mice
Authors: Dokoshi, T;Chen, Y;Cavagnero, KJ;Rahman, G;Hakim, D;Brinton, S;Schwarz, H;Brown, EA;O'Neill, A;Nakamura, Y;Li, F;Salzman, NH;Knight, R;Gallo, RL;
Nature communications
Species: Human
Sample Types: Cell Culture Supernates
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Toll-like Receptor 2 Mediated Immune Regulation in Simian Immunodeficiency Virus-Infected Rhesus Macaques
Authors: Boby, N;Williams, KM;Das, A;Pahar, B;
Vaccines
Species: Primate - Macaca mulatta (Rhesus Macaque)
Sample Types: Plasma
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HIV-1 treatment timing shapes the human intestinal memory B-cell repertoire to commensal bacteria
Authors: Planchais, C;Molinos-Albert, LM;Rosenbaum, P;Hieu, T;Kanyavuz, A;Clermont, D;Prazuck, T;Lefrou, L;Dimitrov, JD;Hüe, S;Hocqueloux, L;Mouquet, H;
Nature communications
Species: Human
Sample Types: Serum
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Antimicrobial overproduction sustains intestinal inflammation by inhibiting Enterococcus colonization
Authors: KK Jang, T Heaney, M London, Y Ding, F Yeung, D Ercelen, YH Chen, J Axelrad, S Gurunathan, A Marijke Ke, ME Griffin, HC Hang, K Cadwell
bioRxiv : the preprint server for biology, 2023-02-01;0(0):.
Species: Human
Sample Types: Stool Extracts
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Effects of Oral Cannabinoids on Systemic Inflammation and Viral Reservoir Markers in People with HIV on Antiretroviral Therapy: Results of the CTN PT028 Pilot Clinical Trial
Authors: Mboumba Bouassa, R;Comeau, E;Alexandrova, Y;Pagliuzza, A;Yero, A;Samarani, S;Needham, J;Singer, J;Lee, T;Bobeuf, F;Vertzagias, C;Sebastiani, G;Margolese, S;Mandarino, E;Klein, M;Lebouché, B;Routy, J;Chomont, N;Costiniuk, C;Jenabian, M;
Cells
Species: Human
Sample Types: Plasma
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A Pilot Study on Human Circulating System Indicated That Regenerating Islet-Derived Protein 3 Gamma (REG3A) is a Potential Prognostic Biomarker for Sepsis
Authors: X Ding, S Liu, S Zhu, B Zhou, H Ma
The American journal of cardiology, 2022-12-24;190(0):90-95.
Species: Human
Sample Types: Serum
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Dysbiosis of Gut Microbiota Promotes Hepatocellular Carcinoma Progression by Regulating the Immune Response
Authors: N Zhang, Y Gou, S Liang, N Chen, Y Liu, Q He, J Zhang
Journal of Immunology Research, 2021-10-20;2021(0):4973589.
Species: Human
Sample Types: Plasma
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