摘要:
Methods, systems, and apparatus, including computer programs encoded on computer storage media, for content presentation. One of the methods includes determining current programming being presented to a user from a first device, wherein the determining includes receiving information from the first device associated with the current programming being presented; determining one or more sponsored content items to provide to a second device, wherein the one or more sponsored content items are identified as associated with the current programming including determining that one or more presentation criteria as specified by a respective sponsored content provider have been satisfied; and providing the one or more sponsored content items to the second device.
摘要:
Disclosed are compositions and methods for their use, such as in identifying G-protein-coupled receptors, ligands and compounds that modulate the activities of G-protein-coupled receptors. The compositions and methods employ cyclic nucleotide-gated channels and fluorescence dyes in detecting changes of intracellular cAMP levels in response to the stimulation of G-protein-coupled receptors. Activation of the G-protein-coupled receptors can be detected in a variety of assays, including cell-based imaging assays with fluorescence microscopes and high throughput assays with multi-well plates and fluorescence plate readers.
摘要:
The invention provides a novel microorganism producing pravastatin sodium, as well as the method for producing pravastatin sodium by using this microorganism. Micropolyspora roseoalba CGMCC 0624 of the invention is highly tolerant to mevastatin sodium, and has a high transformation rate of mevastatin sodium, and can produce pravastatin sodium with a high efficiency and low cost.
摘要:
The invention provides a series of Gαq protein variants that functionally couple to sensory cell receptors such as taste GPCRs (TRs) and olfactory GPCRs (ORs) in an overly promiscuous manner. According to the invention, the functional coupling can be determined, for example, by measuring changes in intracellular IP3, or calcium. In a particular embodiment, the Gαq protein variants can be expressed in mammalian cell lines or Xenopus oocytes, and then evaluated using calcium fluorescence imaging and electrophysiological recording.
摘要:
The invention provides a series of G&agr;q protein variants that functionally couple to sensory cell receptors such as taste GPCRs (TRs) and olfactory GPCRs (ORs) in an overly promiscuous manner. According to the invention, the functional coupling can be determined, for example, by measuring changes in intracellular IP3, or calcium. In a particular embodiment, the G&agr;q protein variants can be expressed in mammalian cell lines or Xenopus oocytes, and then evaluated using calcium fluorescence imaging and electrophysiological recording.
摘要:
The invention provides a series of Gαq protein variants that functionally couple to sensory cell receptors such as taste GPCRs (TRs) and olfactory GPCRs (ORs) in an overly promiscuous manner. According to the invention, the functional coupling can be determined, for example, by measuring changes in intracellular IP3, or calcium. In a particular embodiment, the Gαq protein variants can be expressed in mammalian cell lines or Xenopus oocytes, and then evaluated using calcium fluorescence imaging and electrophysiological recording.
摘要:
Disclosed are compositions and methods for their use, such as in identifying G-protein-coupled receptors, ligands and compounds that modulate the activities of G-protein-coupled receptors. The compositions and methods employ cyclic nucleotide-gated channels and fluorescence dyes in detecting changes of intracellular cAMP levels in response to the stimulation of G-protein-coupled receptors. Activation of the G-protein-coupled receptors can be detected in a variety of assays, including cell-based imaging assays with fluorescence microscopes and high throughput assays with multi-well plates and fluorescence plate readers.
摘要:
Disclosed are novel compositions and methods employing cyclic nucleotide-gated channels and fluorescence dyes and other indicators in detecting changes of intracellular cAMP levels, for instance in response to the stimulation of G-protein-coupled receptors. CNG mutants comprising one or more pore mutations that enhance sensitivity to cAMP and decrease divalent cation-mediated blockage are used in a variety of assays, including detection of the G-protein-coupled receptor activity. Also disclosed are novel dye quencher formulations that are particularly suited for cell-based assays of protein interactions.
摘要:
The invention provides a series of Gαq protein variants that functionally couple to sensory cell receptors such as taste GPCRs (TRs) and olfactory GPCRs (ORs) in an overly promiscuous manner. According to the invention, the functional coupling can be determined, for example, by measuring changes in intracellular IP3, or calcium. In a particular embodiment, the Gαq protein variants can be expressed in mammalian cell lines or Xenopus oocytes, and then evaluated using calcium fluorescence imaging and electrophysiological recording.
摘要:
The invention provides a novel microorganism producing pravastatin sodium, as well as the method for producing pravastatin sodium by using this microorganism. Micropolyspora roseoalba CGMCC 0624 of the invention is highly tolerant to mevastatin sodium, and has a high transformation rate of mevastatin sodium, and can produce pravastatin sodium with a high efficiency and low cost.