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Looger

Loren Looger, Sterling, VA US

Patent application numberDescriptionPublished
20100130420NOVEL CHIMERIC LIGAND-GATED ION CHANNELS AND METHODS OF USE THEREOF - The present invention provides novel chimeric receptors that have unique pharmacology. In particular, the chimeric receptors comprise a mutated ligand binding domain of the α7 nicotinic acetylcholine receptor fused to a transmembrane or channel domain from a ligand-gated ion channel protein. The mutations in the ligand binding domain confer selective binding of compounds. Methods of using the novel chimeric receptors of the invention as well as compounds that preferentially bind and activate the chimeric receptors are also disclosed.05-27-2010

Loren Looger, Washington, DC US

Patent application numberDescriptionPublished
20090126034Environmentally Stable Sensors and Methods of Using the Same - Environmentally stable biosensors are disclosed, which comprise a ligand binding domain from a thermophilic organism conjugated to donor and fluorescent moieties that permit detection and measurement of Fluorescence Resonance Energy Transfer upon ligand binding. Such biosensors demonstrate enhanced acid-, thermal- and chemical stability as compared to sensors constructed using protein domains from mesophilic organisms.05-14-2009
20100037329Development of sensitive fret sensors and methods of using the same - Intramolecular biosensors are disclosed, including PBP-based biosensors, comprising a ligand binding domain fused to donor and fluorescent moieties that permit detection and measurement of Fluorescence Resonance Energy Transfer upon binding ligand. At least one of the donor and fluorescent moieties may be internally fused to the biosensor such that both ends of the internally fused fluorophore are fixed. In addition, methods of improving the sensitivity of terminally fused biosensors are provided. The biosensors of the invention are useful for the detection and quantification of ligands in vivo and in culture.02-11-2010

Loren L. Looger, Madison, AL US

Patent application numberDescriptionPublished
20100105141Sulfonylurea-Responsive Repressor Proteins - Compositions and methods relating to the use of sulfonylurea-responsive repressors are provided. Compositions include polypeptides that specifically bind to an operator, wherein the specific binding is regulated by a sulfonylurea compound. Compositions also include polynucleotides encoding the polypeptides as well as constructs, vectors, prokaryotic and eukaryotic cells, and eukaryotic organisms including plants and seeds comprising the polynucleotide, and/or produced by the methods. Also provided are methods to provide a sulfonylurea-responsive repressor to a cell or organism, and to regulate expression of a polynucleotide of interest in a cell or organism, including a plant or plant cell.04-29-2010

Loren L. Looger, Washington, DC US

Patent application numberDescriptionPublished
20090178149Polyamine Sensors and Methods of Using the Same - Polyamine biosensors are disclosed, including putrescine binding biosensors, comprising a polyamine binding domain conjugated to donor and fluorescent moieties that permit detection and measurement of Fluorescence Resonance Energy Transfer upon binding polyamine. Such biosensors are useful for the detection of polyamine concentrations in vivo and in culture.07-09-2009
20110289609Neurotransmitter Sensors and Methods of Using the Same - Neurotransmitter biosensors are disclosed, including YbeJ-based glutamate binding biosensors, comprising a neurotransmitter binding domain conjugated to donor and fluorescent moieties that permit detection and measurement of Fluorescence Resonance Energy Transfer upon binding neurotransmitter. Such biosensors are useful for the detection of neurotransmitter concentrations in vivo and in culture.11-24-2011
20120028265METHODS OF USING RET NANOSENSORS - The present invention provides methods for detecting and monitoring metabolite concentrations, which comprise detection and measurement of Fluorescence Resonance Energy Transfer upon ligand binding. The methods of the present invention are useful for real time monitoring of changes in metabolite levels in living cell cultures.02-02-2012

Patent applications by Loren L. Looger, Washington, DC US

Loren L. Looger, Sterling, VA US

Patent application numberDescriptionPublished
20110212838Sulfonylurea-Responsive Repressor Proteins - Compositions and methods relating to the use of sulfonylurea-responsive repressors are provided. Compositions include polypeptides that specifically bind to an operator, wherein the specific binding is regulated by a sulfonylurea compound. Compositions also include polynucleotides encoding the polypeptides as well as constructs, vectors, prokaryotic and eukaryotic cells, and eukaryotic organisms including plants and seeds comprising the polynucleotide, and/or produced by the methods. Also provided are methods to provide a sulfonylurea-responsive repressor to a cell or organism, and to regulate expression of a polynucleotide of interest in a cell or organism, including a plant or plant cell.09-01-2011
20110294216SULFONYLUREA-RESPONSIVE REPRESSOR PROTEINS - Compositions and methods relating to the use of sulfonylurea-responsive repressors are provided. Compositions include polypeptides that specifically bind to an operator, wherein the specific binding is regulated by a sulfonylurea compound. Compositions also include polynucleotides encoding the polypeptides as well as constructs, vectors, prokaryotic and eukaryotic cells, and eukaryotic organisms including plants and seeds comprising the polynucleotide, and/or produced by the methods. Also provided are methods to provide a sulfonylurea-responsive repressor to a cell or organism, and to regulate expression of a polynucleotide of interest in a cell or organism, including a plant or plant cell.12-01-2011

Loren Lee Looger, Madison, AL US

Patent application numberDescriptionPublished
20120034691GENETICALLY ENCODED CALCIUM INDICATORS AND METHODS OF USE - Provided herein are nucleic acid sequences and polypeptides encoding a genetically encoded calcium indicator (GECI). Also provided are vectors and cells comprising the nucleic acid sequences and/or polypeptides. Kits comprising the nucleic acid sequences, polypeptides, vectors, cells and combinations thereof are also provided. Also provided herein are methods of screening for G-protein coupled receptor (GPCR) agonists and antagonists and methods of monitoring neural activity using the GECIs.02-09-2012