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Mouse Beta-defensin 2 / Defb2 ELISA Kit

SKU:
MOFI00229
Product Type:
ELISA Kit
Size:
96 Assays
Uniprot:
P82020
Sensitivity:
37.5pg/ml
Range:
62.5-4000pg/ml
ELISA Type:
Competitive
Synonyms:
Defb2, BD-2, DEFB2, DEFB4A, DEFB4B, HBD-2, SAP-1, Beta-defensin 2, DEFB-2, DEFB2DEFB102, DEFB4beta-defensin 4A, Defensin, beta 2Skin-antimicrobial peptide 1, defensin, beta 4, defensin, beta 4A, HBD-2, hBD-2, SAP1BD-2
Reactivity:
Mouse
€649
Frequently bought together:

Description

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Mouse Beta-defensin 2/Defb2 ELISA Kit

The Mouse Beta-Defensin 2 (DEFB2) ELISA Kit is a reliable and accurate tool for detecting levels of DEFB2 in mouse serum, plasma, and cell culture supernatants. This kit offers high sensitivity and specificity, ensuring precise and reproducible results for a variety of research applications.DEFB2 is a key member of the defensin family of antimicrobial peptides, playing an important role in the innate immune response against pathogens. Its expression is crucial in protecting the host from microbial infections and maintaining microbial homeostasis in the body.

By using the Mouse Beta-Defensin 2 ELISA Kit, researchers can better understand the immune response and inflammatory processes in various experimental models, ultimately leading to insights into infectious diseases, inflammation-related disorders, and potential therapeutic interventions. Trust in this kit for accurate and insightful analysis of DEFB2 levels in mouse samples.

Product Name:Mouse Beta-defensin 2 / Defb2 ELISA Kit
Product Code:MOFI00229
Size:96 Assays
Alias:Defb2, BD-2, DEFB2, DEFB4A, DEFB4B, HBD-2, SAP-1, Beta-defensin 2, DEFB-2, DEFB2DEFB102, DEFB4beta-defensin 4A, Defensin, beta 2Skin-antimicrobial peptide 1, defensin, beta 4, defensin, beta 4A, HBD-2, hBD-2, SAP1BD-2
Detection Method:Competitive ELISA
Application:This immunoassay kit allows for the in vitro quantitative determination of Mouse Defb2 concentrations in serum plasma and other biological fluids.
Sensitivity:37.5pg/ml
Range:62.5-4000pg/ml
Storage:4°C for 6 months
Note:For Research Use Only
Recovery: Matrices listed below were spiked with certain level of Mouse Defb2 and the recovery rates were calculated by comparing the measured value to the expected amount of Mouse Defb2 in samples.
MatrixRecovery range(%)Average(%)
serum(n=5)88-10395
EDTA plasma(n=5)88-10495
UFH plasma(n=5)85-10494
Linearity:The linearity of the kit was assayed by testing samples spiked with appropriate concentration of Mouse Defb2 and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected.
Sample1:21:41:8
serum(n=5)89-104%88-100%92-101%
EDTA plasma(n=5)83-100%88-97%84-94%
UFH plasma(n=5)88-99%81-97%80-100%
Intra Assay:CV <8%
Inter Assay:CV <10%
ComponentQuantityStorage
ELISA Microplate(Dismountable)8-12 strips4°C for 6 months
Lyophilized Standard24°C/-20°C
Sample/Standard Dilution Buffer20ml4°C
Biotin-labeled Antibody(Concentrated)60ul4°C (Protect from light)
Antibody Dilution Buffer10ml4°C
HRP-Streptavidin Conjugate(SABC)120ul4°C (Protect from light)
SABC Dilution Buffer10ml4°C
TMB Substrate10ml4°C (Protect from light)
Stop Solution10ml4°C
Wash Buffer(25X)30ml4°C
Plate Sealer5-

Other materials and equipment required:

  • Microplate reader with 450 nm wavelength filter
  • Multichannel Pipette, Pipette, microcentrifuge tubes and disposable pipette tips
  • Incubator
  • Deionized or distilled water
  • Absorbent paper
  • Buffer resevoir
UniprotP82020
UniProt Protein Function:Function: Has bactericidal activity
UniProt Protein Details:

By similarity.

Subcellular location: Secreted

By similarity.

Tissue specificity: Kidney, uterus and to a lesser extent in heart. Ref.1

Induction: In tracheal epithelium, by lipopolysaccharide or inflammation. Ref.1

Sequence similarities: Belongs to the beta-defensin family.

UniProt Code:P82020
NCBI GenInfo Identifier:6753624
NCBI Gene ID:13215
NCBI Accession:NP_034160.1
Molecular Weight:7,820 Da
NCBI Full Name:beta-defensin 2
UniProt Protein Name:Beta-defensin 2
UniProt Synonym Protein Names:Defensin, beta 2
UniProt Gene Name:Defb2  
UniProt Entry Name:DEFB2_MOUSE

*Note: Protocols are specific to each batch/lot. For the correct instructions please follow the protocol included in your kit.

StepProcedure
1. Set standard, test sample and control (zero) wells on the pre-coated plate respectively, and then, record their positions. It is recommended to measure each standard and sample in duplicate. Wash plate 2 times before adding standard, sample and control (zero) wells!
2. Add Sample and Biotin-detection antibody: Add 50µL of Standard, Blank or Sample per well. The blank well is added with Sample Dilution Buffer. Immediately add 50 µL of biotin-labelled antibody working solution to each well. Cover with the plate sealer provided. Gently tap the plate to ensure thorough mixing. Incubate for 45 minutes at 37°C. (Solutions are added to the bottom of micro-ELISA platewell, avoid touching plate walls and foaming).
3. Wash: Aspirate each well and wash, repeating the process three times. Wash by filling each well with Wash Buffer (approximately 350µL) using a squirt bottle, multi-channel pipette, manifold dispenser orautomated washer. Complete removal of liquid at each step is essential to good performance. After the last wash, remove any remaining Wash Buffer by aspirating or decanting. Invert the plate and pat it against thick clean absorbent paper.
4. HRP-Streptavidin Conjugate(SABC): Add 100µL of SABC working solution to each well. Cover with a new Plate sealer. Incubate for 30 minutes at 37°C.
5.Wash: Repeat the aspiration/wash process for five times.
6. TMB Substrate: Add 90µL of TMB Substrate to each well. Cover with a new Plate sealer. Incubate for about 10-20 minutes at 37°C. Protect from light. The reaction time can be shortened or extended according to the actual color change, but not more than 30minutes. When apparent gradient appeared in standard wells, you can terminate the reaction.
7. Stop: Add 50µL of Stop Solution to each well. Color turn to yellow immediately. The adding order of stop solution should be as the same as the substrate solution.
8. OD Measurement: Determine the optical density (OD Value) of each well at once, using a microplate reader set to 450 nm. You should open the microplate reader ahead, preheat the instrument, and set the testing parameters.

When carrying out an ELISA assay it is important to prepare your samples in order to achieve the best possible results. Below we have a list of procedures for the preparation of samples for different sample types.

Sample Type Protocol
Serum:

If using serum separator tubes, allow samples to clot for 30 minutes at room temperature. Centrifuge for 10 minutes at 1,000x g. Collect the serum fraction and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles.

If serum separator tubes are not being used, allow samples to clot overnight at 2-8°C. Centrifuge for 10 minutes at 1,000x g. Remove serum and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles.

Plasma:

Collect plasma using EDTA or heparin as an anticoagulant. Centrifuge samples at 4°C for 15 mins at 1000 - g within 30 mins of collection. Collect the plasma fraction and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles. Note: Over haemolysed samples are not suitable for use with this kit.

Urine & Cerebrospinal Fluid:

Collect the urine (mid-stream) in a sterile container, centrifuge for 20 mins at 2000-3000 rpm. Remove supernatant and assay immediately. If any precipitation is detected, repeat the centrifugation step. A similar protocol can be used for cerebrospinal fluid.

Cell culture supernatant:

Collect the cell culture media by pipette, followed by centrifugation at 4°C for 20 mins at 1500 rpm. Collect the clear supernatant and assay immediately.

Cell lysates:

Solubilize cells in lysis buffer and allow to sit on ice for 30 minutes. Centrifuge tubes at 14,000 x g for 5 minutes to remove insoluble material. Aliquot the supernatant into a new tube and discard the remaining whole cell extract. Quantify total protein concentration using a total protein assay. Assay immediately or aliquot and store at ≤ -20°C.

Tissue homogenates:

The preparation of tissue homogenates will vary depending upon tissue type. Rinse tissue with 1X PBS to remove excess blood & homogenize in 20ml of 1X PBS (including protease inhibitors) and store overnight at ≤ -20°C. Two freeze-thaw cycles are required to break the cell membranes. To further disrupt the cell membranes you can sonicate the samples. Centrifuge homogenates for 5 mins at 5000xg. Remove the supernatant and assay immediately or aliquot and store at -20°C or -80°C.

Tissue lysates:

Rinse tissue with PBS, cut into 1-2 mm pieces, and homogenize with a tissue homogenizer in PBS. Add an equal volume of RIPA buffer containing protease inhibitors and lyse tissues at room temperature for 30 minutes with gentle agitation. Centrifuge to remove debris. Quantify total protein concentration using a total protein assay. Assay immediately or aliquot and store at ≤ -20 °C.

Breast Milk:

Collect milk samples and centrifuge at 10,000 x g for 60 min at 4°C. Aliquot the supernatant and assay. For long term use, store samples at -80°C. Minimize freeze/thaw cycles.

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