Human lipolysaccharide binding protein,LBP ELISA Kit
Product Details
| Description |
CUSABIO’s Human lipopolysaccharide-binding protein (LBP) ELISA Kit is suitable for the quantitative detection of LBP content in human serum, plasma, or tissue homogenates. LBP is a carrier protein of the endotoxins' recognition by the host. It is produced by hepatocytes and released into the bloodstream as a consequence of Gram-negative infection. LBP conveys LPS to the cellular surface, forming a ternary complex with a cluster of CD14. CD14 facilitates the transfer of LPS to the TLR4/MD2 complex, activating LPS-TLR4 signaling that elicits proinflammatory responses. It is significantly up-regulated during acute-phase reaction following the initial inflammatory responses, promoting, along with (bactericidal/permeability-increasing protein), non-inflammatory clearance of LPS, and ultimate resolution of LPS-induced inflammation. Additionally, LBP mediates endothelial dysfunction and is required for apoptosis in tubular cells.
The detection mechanism of this kit is based on the sandwich ELISA technique and enzyme-substrate chromogenic reaction. The formed pre-coated LBP antibody/LBP/Biotin-conjugated LBP antibody complex is labeled by HRP-avidin and then develops a color reaction after the addition of The TMB substrate solution. The color intensity can be measured at 450 nm via a microplate reader.
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| Target Name |
lipopolysaccharide binding protein |
| Alternative Names |
BPI fold containing family D, member 2 ELISA Kit; Bpifd2 ELISA Kit; LBP ELISA Kit; LBP_HUMAN ELISA Kit; LBP1 ELISA Kit; Lipopolysaccharide binding protein ELISA Kit; Lipopolysaccharide-binding protein ELISA Kit; LPS binding protein ELISA Kit; Ly88 ELISA Kit; MGC22233 ELISA Kit; OTTHUMP00000030965 ELISA Kit; RP23-407H16.4 ELISA Kit |
| Abbreviation |
LBP |
| Species |
Homo sapiens (Human) |
| Sample Types |
serum, plasma, tissue homogenates |
| Detection Range |
0.625 μg/mL-40 μg/mL |
| Sensitivity |
0.156 μg/mL |
| Assay Time |
1-5h |
| Sample Volume |
50-100ul |
| Detection Wavelength |
450 nm |
| Research Area |
Immunology |
| Assay Principle |
quantitative |
| Measurement |
Sandwich |
| Precision |
| Intra-assay Precision (Precision within an assay): CV% |
| Three samples of known concentration were tested twenty times on one plate to assess. |
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| Inter-assay Precision (Precision between assays): CV% |
| Three samples of known concentration were tested in twenty assays to assess. |
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| Linearity |
| To assess the linearity of the assay, samples were spiked with high concentrations of human LBP in various matrices and diluted with the Sample Diluent to produce samples with values within the dynamic range of the assay. |
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Sample |
Serum(n=4) |
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| 1:1 |
Average % |
97 |
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| Range % |
92-102 |
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| 1:2 |
Average % |
95 |
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| Range % |
91-99 |
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| 1:4 |
Average % |
99 |
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| Range % |
96-108 |
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| 1:8 |
Average % |
94 |
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| Range % |
89-98 |
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| Recovery |
| The recovery of human LBP spiked to levels throughout the range of the assay in various matrices was evaluated. Samples were diluted prior to assay as directed in the Sample Preparation section. |
| Sample Type |
Average % Recovery |
Range |
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| Serum (n=5) |
99 |
92-108 |
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| EDTA plasma (n=4) |
84 |
80-88 |
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| Typical Data |
| These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed. |
| μg/ml |
OD1 |
OD2 |
Average |
Corrected |
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| 40 |
2.795 |
2.694 |
2.745 |
2.613 |
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| 20 |
2.232 |
2.131 |
2.182 |
2.050 |
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| 10 |
1.464 |
1.443 |
1.454 |
1.322 |
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| 5 |
0.812 |
0.823 |
0.818 |
0.686 |
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| 2.5 |
0.425 |
0.415 |
0.420 |
0.288 |
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| 1.25 |
0.300 |
0.311 |
0.306 |
0.174 |
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| 0.625 |
0.222 |
0.218 |
0.220 |
0.088 |
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| 0 |
0.132 |
0.131 |
0.132 |
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| Materials provided |
- A micro ELISA plate ---The 96-well plate has been pre-coated with an anti-human LBP antibody. This dismountable microplate can be divided into 12 x 8 strip plates.
- Two vials lyophilized standard ---Dilute a bottle of the standard at dilution series, read the OD values, and then draw a standard curve.
- One vial Biotin-labeled LBP antibody (100 x concentrate) (120 μl/bottle) ---Act as the detection antibody.
- One vial HRP-avidin (100 x concentrate) (120 μl/bottle) ---Bind to the detection antibody and react with the TMB substrate to make the solution chromogenic.
- One vial Biotin-antibody Diluent (15 ml/bottle) ---Dilute the Biotin-antibody.
- One vial HRP-avidin Diluent (15 ml/bottle) ---Dilute the HRP-avidin solution.
- One vial Sample Diluent (50 ml/bottle)---Dilute the sample to an appropriate concentration.
- One vial Wash Buffer (25 x concentrate) (20 ml/bottle) ---Wash away unbound or free substances.
- One vial TMB Substrate (10 ml/bottle) ---Act as the chromogenic agent. TMB interacts with HRP, eliciting the solution turns blue.
- One vial Stop Solution (10 ml/bottle) ---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
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| 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 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
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| Storage |
Store at 2-8°C. Please refer to protocol. |
| Lead Time |
3-5 working days |
