Human EGFR Quantikine ELISA Kit Best Seller

Name: Human EGFR Quantikine ELISA Kit
Brand: R&D Systems
SKU: DEGFR0
Rating: 3 (1 reviews)

R&D Systems, part of Bio-Techne | Catalog # DEGFR0

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Citations (7)

Product Datasheet / COA / SDS

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Product Summary
Product Specifications
Precision
Recovery
Linearity
Scientific Data
Preparation & Storage
Background
Product Documents
Specific Notices

Key Product Details

Assay Length

4.5 hours

Sample Type & Volume Required Per Well

Cell Culture Supernates (50 µL), Serum (10 µL), EDTA Plasma (10 µL), Heparin Plasma (10 µL), Human Milk (50 µL)

Sensitivity

0.036 ng/mL

Assay Range

0.313-20 ng/mL (Cell Culture Supernates, Serum, EDTA Plasma, Heparin Plasma, Human Milk)

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Product Summary for Human EGFR Quantikine ELISA Kit

The Quantikine Human EGF R immunoassay is a 4.5 hour solid phase ELISA designed to measure EGF R in cell culture supernates, serum, plasma, and human milk. It contains NS0-expressed recombinant human EGF R and has been shown to accurately quantitate the recombinant factor. Results obtained using natural EGF R 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 human EGF R.

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 EGF R

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 on one plate to assess intra-assay precision.

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

Cell Culture Supernates, Human Milk

	Intra-Assay Precision			Inter-Assay Precision
Sample	1	2	3	1	2	3
n	20	20	20	40	40	40
Mean (pg/mL)	1.65	5.08	10.6	1.63	5.00	10.0
Standard Deviation	0.094	0.170	0.507	0.144	0.416	0.816
CV%	5.7	3.3	4.8	8.8	8.3	8.2

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 (pg/mL)	1.69	5.33	11.2	1.70	5.21	10.4
Standard Deviation	0.072	0.199	0.616	0.161	0.522	1.03
CV%	4.3	3.7	5.5	9.4	10.0	10.0

Recovery for Human EGFR Quantikine ELISA Kit

The recovery of EGF R spiked to levels throughout the range of the assay in various matrices was evaluated.

Sample Type	Average % Recovery	Range %
Cell Culture Media (n=4)	98	86-106
EDTA Plasma (n=4)	99	91-108
Heparin Plasma (n=4)	101	92-111
Serum (n=4)	101	89-117

Linearity

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

Scientific Data Images for Human EGFR Quantikine ELISA Kit

Human EGF R/ErbB1 ELISA Cell Culture Supernate/Human Milk Standard Curve

Human EGF R/ErbB1 ELISA Serum/Plasma 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: EGFR

The EGF R subfamily of receptor tyrosine kinases comprises four members: EGF R (also known as HER-1, ErbB1, or ErbB), ErbB2 (Neu, HER-2), ErbB3 (HER-3), and ErbB4 (HER-4). All family members are type I transmembrane glycoproteins with an extracellular ligand binding domain containing two cysteine-rich domains separated by a spacer region and a cytoplasmic domain containing a membrane-proximal tyrosine kinase domain followed by multiple tyrosine autophosphorylation sites. The human EGF R cDNA encodes a 1210 amino acid (aa) precursor with a 24 aa signal peptide, a 621 aa extracellular domain (ECD), a 23 aa transmembrane segment, and a 542 aa cytoplasmic domain. Soluble receptors consisting of the extracellular ligand binding domain are generated by alternate splicing in human and mouse. Within the ECD, human EGF R shares 88% aa sequence identity with mouse and rat EGF R. It shares 43% - 44% aa sequence identity with the ECD of human ErbB2, ErbB3, and ErbB4. EGF R binds a subset of the EGF family ligands, including EGF, amphiregulin, TGF-alpha, betacellulin, epiregulin, HB-EGF, and epigen. Ligand binding induces EGF R homodimerization as well as heterodimerization with ErbB2, resulting in kinase activation, heterodimerization tyrosine phosphorylation and cell signaling. EGF R can also be recruited to form heterodimers with the ligand-activated ErbB3 or ErbB4. EGF R signaling regulates multiple biological functions including cell proliferation, differentiation, motility, and apoptosis. EGF R is overexpressed in a wide variety of tumors and is the target of several anti-cancer drugs.

Long Name

Epidermal Growth Factor Receptor

Alternate Names

EGF R, ErbB, ErbB1, HER-1

Entrez Gene IDs

1956 (Human); 13649 (Mouse); 24329 (Rat); 102138724 (Cynomolgus Monkey)

Gene Symbol

EGFR

Additional EGFR Products

Product Documents for Human EGFR Quantikine ELISA Kit

Product Datasheets

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COA

SDS

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Product Specific Notices for Human EGFR Quantikine ELISA Kit

For research use only

Citations
Reviews

⚠ 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.