Human anti-double stranded DNA(dsDNA) antibody(IgG) ELISA Kit

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Code CSB-E04911h
Size 96T,5×96T,10×96T
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Product Details

Alternative Names
N/A
Abbreviation
dsDNA Ab (IgG)
Species
Homo sapiens (Human)
Sample Types
serum
Assay Time
1-5h
Sample Volume
50-100ul
Detection Wavelength
450 nm
Research Area
Autoimmunity
Assay Principle
qualitative
Measurement
Indirect
Precision

Intra-assay Precision (Precision within an assay): CV%<15%

     

Three samples of known concentration were tested twenty times on one plate to assess.

 

Inter-assay Precision (Precision between assays): CV%<15%

     

Three samples of known concentration were tested in twenty assays to assess.

   
Typical Data

Test parameter

specification

test result

Positive control

>0.6

1.246

Negative control

<0.15

0.053

Positive rate

10,Positive

100%

Negative rate

10,Negative

100%

Materials provided
    • A micro ELISA plate --- The 96-well plate has been pre-coated with antigen-specific for dsDNA Ab (IgG). This dismountable microplate can be divided into 12 x 8 strip plates.
    • Negative Control (1 x 800 μl)
    • Positive Control (1 x 800 μl)
    • HRP-conjugate (1 x10 ml) --- Bind to the detection antibody and react with the TMB substrate to make the solution chromogenic.
    • Sample Diluent (1 x 20 ml) --- Dilute the standard and sample solution.
    • Wash Buffer (25 x concentrate) (1 x20 ml) --- Wash away unbound or free substances.
    • Substrate A 1 x 5 ml --- Mix with substrate B, and the TMB is catalyzed by HRP to elicit a chromogenic signal.
    • Substrate B 1 x 5 ml --- Mix with substrate A, and the TMB is catalyzed by HRP to elicit a chromogenic signal.
    • Stop Solution (1 x 5 ml) --- Stop the color reaction. The solution color immediately turns from blue to yellow.
    • Four Adhesive Strips (For 96 wells) --- Cover the microplate when incubation.
    • An instruction manual
Materials not provided
    • A microplate reader capable of measuring absorbance at 450 nm, with the correction wavelength set at 540 nm or 570 nm.
    • An incubator that can provide stable incubation conditions up to 37°C±5°C.
    • Centrifuge
    • Vortex
    • Squirt bottle, manifold dispenser, or automated microplate washer
    • Absorbent paper for blotting the microtiter plate
    • 50-300ul multi-channel micropipette
    • Pipette tips
    • Single-channel micropipette with different ranges
    • 100ml and 500ml graduated cylinders
    • Deionized or distilled water
    • Timer
    • Test tubes for dilution
Troubleshooting
and FAQs
Storage
Store at 2-8°C. Please refer to protocol.
Shelf Life
6 months
Lead Time
3-5 working days after you place the order, and it takes another 3-5 days for delivery via DHL or FedEx.
Description

The product CSB-E04911h is a ready-to-use microwell, strip plate ELISA Kit for qualitative analysis of human anti-double-stranded DNA (dsDNA) antibody (IgG) (dsDNA Ab (IgG)) in serum. Based on the Indirect-ELISA technique in combination with enzyme-substrate chromogenic reaction, the dsDNA Ab (IgG) levels can be calculated referring to the standard curve. This Human dsDNA Ab (IgG) ELISA Kit has been verified by multiple tests with high sensitivity, strong specificity, precision less than 15%, good linearity, and lot-to-lot consistency.

This assay employs the qualitative enzyme immunoassay technique. Samples are pipetted into the wells with anti-human IgG conjugated HRP. Any antibodies specific for the antigen present will bind to the pre-coated antigen-specific for dsDNA Ab (IgG) on the microwell plate. Following a wash to remove any unbound reagent, substrate A and B solutions are added to the wells and color develops in proportion to the amount of human dsDNA Ab (IgG) bound in the initial step. The color development is terminated and the intensity of the color is measured.

Anti-dsDNA antibody (IgG) is an isoform of anti-dsDNA antibodies that are related to active systemic lupus erythematosus (SLE) and lupus nephritis (LN). Anti-dsDNA antibodies recognize diverse DNA structures, including single-stranded (ss)DNA, Z-DNA, bent or elongated dsDNA, DNA: RNA hybrids, locked-nucleic acids, and peptide: nucleic acid hybrids. Xiaoyu Wang and Yumin Xia demonstrated that anti-dsDNA IgG contributes to renal fibrosis by downregulating suppressor of cytokine signaling 1 (SOCS1) and activating Jak-STAT1 signals, which modulate the expression of profibrotic genes, TGF-β1, platelet-derived growth factor B, and connective tissue growth factor.

Customer Reviews and Q&A

 Customer Reviews
Average Rating:
5.0 - 1 reviews

Submit a Review here

Sample type: Plasma (anticoagulant)

Sample species: Mouse

Sample dilution: 1:10

Review: I used the Huamei Bio item number CSB-E04911h ELISA kit to detect the level of anti-dsDNA in blank or humanised PBMC reconstructed mouse model sera, normal or inflammatory patients. Different dilutions were given before the sample was loaded on the sample, and then the OD value was analysed to confirm the cutoff value and the final dilution of the sample.

By Anonymous

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