Principle of the Assay: CD9 ELISA kit applies the competitive enzyme immunoassay technique utilizing an anti-CD9 antibody and an CD9-HRP conjugate. The assay sample and buffer are incubated together with CD9-HRP conjugate in pre-coated plate for one hour. After the incubation period, the wells are decanted and washed five times. The wells are then incubated with a substrate for HRP enzyme. The product of the enzyme-substrate reaction forms a blue colored complex. Finally, a stop solution is added to stop the reaction, which will then turn the solution yellow. The intensity of color is measured spectrophotometrically at 450nm in a microplate reader. The intensity of the color is inversely proportional to the CD9 concentration since CD9 from samples and CD9-HRP conjugate compete for the anti-CD9 antibody binding site. Since the number of sites is limited, as more sites are occupied by CD9 from the sample, fewer sites are left to bind CD9-HRP conjugate. A standard curve is plotted relating the intensity of the color (O.D.) to the concentration of standards. The CD9 concentration in each sample is interpolated from this standard curve.
NCBI and Uniprot Product Information
NCBI Description
This gene encodes a member of the transmembrane 4 superfamily, also known as the tetraspanin family. Tetraspanins are cell surface glycoproteins with four transmembrane domains that form multimeric complexes with other cell surface proteins. The encoded protein functions in many cellular processes including differentiation, adhesion, and signal transduction, and expression of this gene plays a critical role in the suppression of cancer cell motility and metastasis. [provided by RefSeq, Jan 2011]
Uniprot Description
CD9: Involved in platelet activation and aggregation. Regulates paranodal junction formation. Involved in cell adhesion, cell motility and tumor metastasis. Required for sperm-egg fusion. Belongs to the tetraspanin (TM4SF) family.
Protein type: Membrane protein, integral; Motility/polarity/chemotaxis; Cell adhesion; Membrane protein, multi-pass
Chromosomal Location of Human Ortholog: 12p13.3
Cellular Component: extracellular space; platelet alpha granule membrane; focal adhesion; integral to plasma membrane; apical plasma membrane; plasma membrane; vesicle; external side of plasma membrane
Molecular Function: integrin binding; protein binding
Biological Process: platelet activation; fusion of sperm to egg plasma membrane; pathogenesis; multicellular organism reproduction; paranodal junction assembly; negative regulation of cell proliferation; platelet degranulation; single fertilization; brain development; cell adhesion; oligodendrocyte development; cell motility; blood coagulation; response to water deprivation
Research Articles on CD9
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Product Notes
The Human CD9 cd9 (Catalog #AAA7203859) is an ELISA Kit and is intended for research purposes only. The product is available for immediate purchase. The AAA7203859 ELISA Kit recognizes Human CD9. It is sometimes possible for the material contained within the vial of "CD9 antigen (CD9), ELISA Kit" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.Precautions
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Though we do strive to guarantee the information represented in this datasheet, AAA Biotech cannot be held responsible for any oversights or imprecisions. AAA Biotech reserves the right to adjust any aspect of this datasheet at any time and without notice. It is the responsibility of the customer to inform AAA Biotech of any product performance issues observed or experienced within 30 days of receipt of said product. To see additional details on this or any of our other policies, please see our Terms & Conditions page.Item has been added to Shopping Cart
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