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Product Specifications
Analytical sensitivity
0.47 ng/mL
Assay range
0.78-50 ng/mL
Sample type/volume
Serum
50 µL
Plasma
50 µL
Hands-on time
20 min
Time-to-result
3 hr 30 min
Homogenous (no wash)
No
Interassay CV
<10%
Intraassay CV
<10%
Instrument
Absorbance Microplate Reader
Product size
96 Tests
Contents
Pre-coated 96 well plate, Standard, HRP Conjugate, Standard & Sample Diluent, HRP Conjugate Diluent, Wash Buffer, TMB Substrate, Stop Solution, Plate Sealer
Shipping conditions
Wet ice
Storage
Refer to product documentation for component specific storage temperature.
Protein name
CD66e (CEACAM5)
Species (tested)
Human
Species (reported)
Human
Assay kit format
Rapid ELISA Kit
Detector antibody conjugate
HRP
Label or dye
Unconjugated
About This Kit
The Human Carcinoembryonic Antigen (CEA) ELISA quantitates CEA in serum and plasma.
Principle of the method
The Human CEA solid phase sandwich ELISA (enzyme linked immunosorbent assay) is designed to measure the amount of the target bound between a matched antibody pair. A target specific antibody has been pre coated in the wells of the supplied microplate. Samples, standards, or controls are then added into these wells, where Human CEA in the samples (or standards) binds to the immobilized (capture) antibody. The sandwich is formed by the addition of the second (detector) HRP linked antibody specific for Human CEA. Excess conjugate and unbound sample or standard are washed away from the plate. The substrate solution is added to each well, and the enzyme substrate reaction is terminated by the addition of a stop solution, turning the color yellow. The optical density (OD) is measured spectrophotometrically at a wavelength of 450±2 nm. The intensity of this signal is directly proportional to the concentration of Human CEA present in the original specimen, which is determined by comparing the OD of the samples to the standard curve.
Achieve fast and reliable results in just 90 minutes with our Rapid ELISA kit, featuring a streamlined protocol that requires only one wash step.
Rigorous validation:
Each manufactured lot of this ELISA kit is quality tested for criteria such as sensitivity, specificity, precision, and lot-to-lot consistency. See manual for more information on validation.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Target information
CEA (Carcino Embryonic Antigen, CD66e) is synthesized during development in the fetal gut, and re-expressed in increased amounts in intestinal carcinomas and several other tumors. CEA is a member of carcinoembryonic antigens, immunoglobulin supergene family and consists of a single N domain (structural homology to the immunoglobulin variable) and six immunoglobulin constant-like A (A1, A2, A3) and B domains (B1, B2, B3). Antibodies to CEA are useful in identifying the origin of various metastatic adenocarcinomas and in distinguishing pulmonary adenocarcinomas (60 to 70% are CEA+) from pleural mesotheliomas (rarely or weakly CEA+). CEA is a member of a large family of glycoproteins, a useful tumor marker for adenocarcinoma, and found in adenocarcinomas of endodermally derived digestive system epithelium and fetal colon. Two subgroups of the CEA family, the CEA cell adhesion molecules and the pregnancy-specific glycoproteins, are located within a 1.2 Mb cluster on the long arm of chromosome 19. Eleven pseudogenes of the CEA cell adhesion molecule subgroup are also found in the cluster. CEA was originally described in bile ducts of liver as biliary glycoprotein. Subsequently, CEA was found to be a cell-cell adhesion molecule detected on leukocytes, epithelia, and endothelia. The encoded protein mediates cell adhesion via homophilic as well as heterophilic binding to other proteins of the subgroup. Multiple cellular activities have been attributed to the encoded protein, including roles in the differentiation and arrangement of tissue three-dimensional structure, angiogenesis, apoptosis, tumor suppression, metastasis, and the modulation of innate and adaptive immune responses. Multiple transcript variants encoding different isoforms have been reported, but the full-length nature of all variants has not been defined.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
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Bioinformatics
Gene aliases : CD66e, CEA, CEACAM5
Gene ID : (Human) 1048
Gene symbol : CEACAM5
Protein Aliases : Carcinoembryonic antigen, Carcinoembryonic antigen-related cell adhesion molecule 5, CD66e, CEA, CEA cell adhesion molecule 5, Cell adhesion molecule CEACAM5, Meconium antigen 100, OTTHUMP00000199033, sCD66e, soluble CD66e
UniProt ID (Human) P06731
Performance Guarantee
If an Invitrogen™ antibody doesn't perform as described on our website or datasheet,we'll replace the product at no cost to you, or provide you with a credit for a future purchase.*
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