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Renilla-luciferin 2-monooxygenase, Renilla luciferase, or RLuc, is a bioluminescent enzyme found in Renilla reniformis, belonging to a group of coelenterazine luciferases.Of this group of enzymes, the luciferase from Renilla reniformis has been the most extensively studied, and due to its bioluminescence requiring only molecular oxygen, has a wide range of applications, with uses as a reporter ...
Luciferase is a generic term for the class of oxidative enzymes that produce bioluminescence, and is usually distinguished from a photoprotein.The name was first used by Raphaël Dubois who invented the words luciferin and luciferase, for the substrate and enzyme, respectively. [1]
A fasting blood sugar level of ≥ 7.0 mmol / L (126 mg/dL) is used in the general diagnosis of diabetes. [17] There are no clear guidelines for the diagnosis of LADA, but the criteria often used are that the patient should develop the disease in adulthood, not need insulin treatment for the first 6 months after diagnosis and have autoantibodies in the blood.
Firefly luciferin and modified substrates are fatty acid mimics and have been used to localize fatty acid amide hydrolase (FAAH) in vivo. [17] Firefly luciferin is a substrate of the ABCG2 transporter and has been used as part of a bioluminescence imaging high throughput assay to screen for inhibitors of the transporter. [18]
During a reaction, luciferase has a conformational change and goes into a "closed" form with the two domains coming together to enclose the substrate. This ensures that water is excluded from the reaction and does not hydrolyze ATP or the electronically excited product. [5] Diagram of the secondary structure of firefly luciferase.
Luciferase systems are widely used in genetic engineering as reporter genes, each producing a different color by fluorescence, [76] [77] and for biomedical research using bioluminescence imaging. [ 78 ] [ 79 ] [ 80 ] For example, the firefly luciferase gene was used as early as 1986 for research using transgenic tobacco plants. [ 81 ]
Immunoprecipitation of intact protein complexes (i.e. antigen along with any proteins or ligands that are bound to it) is known as co-immunoprecipitation (Co-IP). Co-IP works by selecting an antibody that targets a known protein that is believed to be a member of a larger complex of proteins.
Basic concept of Primary Immunofluorescence: An antibody with a conjugated fluorophore, that is specifically bound to an epitope on the target molecule.. Primary (direct) immunofluorescence (DIF) uses a single antibody, conjugated to a fluorophore.