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Human Endoglin/CD105 Quantikine ELISA Kit

R&D Systems, part of Bio-Techne | Catalog # DNDG00

R&D Systems, part of Bio-Techne
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DNDG00

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Key Product Details

Assay Length

4.5 hours

Sample Type & Volume Required Per Well

Cell Culture Supernates (50 µL), Serum (50 µL), EDTA Plasma (50 µL), Heparin Plasma (50 µL)

Sensitivity

0.03 ng/mL

Assay Range

0.156-10 ng/mL (Cell Culture Supernates, Serum, EDTA Plasma, Heparin Plasma)

Product Summary for Human Endoglin/CD105 Quantikine ELISA Kit

The Quantikine Human Endoglin Immunoassay is a 4.5 hour solid-phase ELISA designed to measure human Endoglin in cell culture supernates, serum, and plasma. It contains NS0-expressed recombinant human Endoglin and has been shown to accurately quantitate the recombinant factor. Results obtained using natural human Endoglin showed linear curves that were parallel to the standard curves obtained using the Quantikine kit standards. These results indicate that this kit can be used to determine relative mass values for naturally occurring Endoglin.

Product Specifications

Assay Type

Solid Phase Sandwich ELISA

Format

96-well strip plate

Measurement

Quantitative ELISA

Detection Method

Colorimetric - 450nm (TMB)

Conjugate

HRP

Reactivity

Human

Specificity

Natural and recombinant human Endoglin

Cross-reactivity

< 0.5% cross-reactivity observed with available related molecules. < 50% cross-species reactivity observed with species tested.

Interference

No significant interference observed with available related molecules.

Precision

Intra-Assay Precision (Precision within an assay) Three samples of known concentration were tested twenty times on one plate to assess intra-assay precision.

Inter-Assay Precision (Precision between assays) Three samples of known concentration were tested in forty separate assays to assess inter-assay precision.

Cell Culture Supernates, EDTA Plasma, Heparin Plasma, Serum

Intra-Assay Precision Inter-Assay Precision
Sample 1 2 3 1 2 3
n 20 20 20 40 40 40
Mean (ng/mL) 0.617 1.67 3.14 0.659 1.80 3.47
Standard Deviation 0.017 0.053 0.094 0.044 0.117 0.220
CV% 2.8 3.2 3.0 6.7 6.5 6.3

Recovery for Human Endoglin/CD105 Quantikine ELISA Kit

The recovery of Endoglin spiked to levels throughout the range of the assay was evaluated in cell culture media.

Sample Type Average % Recovery Range %
Cell Culture Media (n=4) 101 92-111

Linearity

To assess the linearity of the assay, samples containing and/or spiked with high concentrations of Endoglin were serially diluted with Calibrator Diluent to produce samples with values within the dynamic range of the assay.

Human Endoglin/CD105 ELISA Linearity

Scientific Data Images for Human Endoglin/CD105 Quantikine ELISA Kit

Human Endoglin/CD105 ELISA Standard Curve

Human Endoglin/CD105 ELISA Standard Curve

Preparation and Storage

Shipping

The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store the unopened product at 2 - 8 °C. Do not use past expiration date.

Background: Endoglin/CD105

Endoglin (CD105) is a transmembrane type III receptor for TGF-beta superfamily ligands and plays an important role in smooth muscle differentiation, angiogenesis, and neovascularization. It is highly expressed on proliferating vascular endothelial cells, chondrocytes, and syncytiotrophoblasts of term placenta. Human Endoglin haploinsufficiency can a cause the vascular disorder, hereditary hemorrhagic telangiectasia type I. Elevated levels of anti-angiogenic soluble Endoglin contribute to pathogenicity in preeclampsia. Endoglin associates with the receptors TGF-beta RII, Activin RIIA or RIIB, BMPR-IA/ALK-3, or BMPR-IB/ALK6 and enhance binding of Activin A, BMP-2, -7, -9, TGF-beta 1, or TGF-beta 3. Endoglin can either enhance or inhibit signaling through these receptor complexes.

Alternate Names

CD105, ENG

Entrez Gene IDs

2022 (Human); 13805 (Mouse); 497010 (Rat)

Gene Symbol

ENG

Additional Endoglin/CD105 Products

Product Documents for Human Endoglin/CD105 Quantikine ELISA Kit

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Note: Certificate of Analysis not available for kit components.

Product Specific Notices for Human Endoglin/CD105 Quantikine ELISA Kit

For research use only

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⚠ WARNING: This product can expose you to chemicals including N,N-Dimethylforamide, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.