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Item number | Size | Datasheet | Manual | SDS | Delivery time | Quantity | Price |
---|---|---|---|---|---|---|---|
031424.100 | 100 µl | - | - |
3 - 19 business days* |
606.00€
|
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You can also order by e-mail: info@biomol.com
Larger quantity required? Request bulk
You can also order by e-mail: info@biomol.com
Larger quantity required? Request bulk
Rhodopsin is the protein in the mammalian retina responsible for the light sensitivity of rod... more
Product information "Anti-Rhodopsin (RHO, Opsin-2, OPN2)"
Rhodopsin is the protein in the mammalian retina responsible for the light sensitivity of rod cells, which are responsible for vision in low light levels. Somewhat surprisingly, the rhodopsin protein turned out to be a typical member of the seven transmembrane G protein-coupled receptor (GPCR) superfamily. Whereas other GPCRs initiate signaling on binding a specific ligand, rhodopsin exists with a ligand already bound, specifically the vitamin A related substance retinal. Retinal can exist in two isomeric forms, 11-cis and 11-trans retinal. In the dark rhodopsin is associated with 11-cis retinal, but photons cause the 11-cis form to flip to the 11-trans form, and this causes an alteration in the structure of the rhodopsin making it catalytically active. Activated rhodopsin in turn activates the GTP binding protein G protein transducin by favoring the loss of GDP and the addition of GTP. Transducin is a typical member of the family of heterotrimeric G proteins, and consists of an alpha and a betagamma subunit. The alpha subunit is responsible for the GTP binding and the GTP bound form activates a phosphodiesterase (PDE) enzyme which hydrolyses cyclic GMP. This in turn increases the membrane potential of the rod cell and reduces the rate of synaptic signaling. So light stimulation actually results in a reduced rate of photoreceptor synaptic release. This information is transmitted through neurons of the retina to the visual centers of the brain (see review 1, 2). Rhodopsin activity is shut off by phosphorylation under the influence of rhodopsin kinase, the activity of which results in binding of visual arrestin (a.k.a. arrestin-1 and S-antigen), which prevents rhodopsin from interacting with and activating more transducin molecules (3, 4). This basic signaling paradigm proved to be a prototype for understanding how other GPCRs function, as proteins similar to transducin, arrestin and rhodopsin kinase are found in these pathways. The HGNC name for this protein is RHO. Applications: Suitable for use in Immunofluorescence and Western Blot. A suitable control tissue is retinal extracts. Rhodopsin run at 35kD on SDS-PAGE gels. Other applications not tested. Recommended Dilution: Immunofluorescence: ~1:1000, Western Blot: 1:5000, Optimal dilutions to be determined by the researcher. Storage and Stability: May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Aliquots are stable for 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
Supplier: | United States Biological |
Supplier-Nr: | 031424 |
Properties
Application: | IF, WB |
Antibody Type: | Monoclonal |
Clone: | 13B855 |
Conjugate: | No |
Host: | Mouse |
Species reactivity: | bovine, human, mouse, swine, rat |
Immunogen: | Whole purified bovine rhodopsin |
Purity: | Purified by Protein G affinity chromatography. |
Format: | Purified |
Database Information
KEGG ID : | K04250 | Matching products |
UniProt ID : | P08100 | Matching products |
Gene ID | GeneID 6010 | Matching products |
Handling & Safety
Storage: | -20°C |
Shipping: | +4°C (International: +4°C) |
Caution
Our products are for laboratory research use only: Not for administration to humans!
Our products are for laboratory research use only: Not for administration to humans!
Information about the product reference will follow.
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