Search Patents
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Publication number: 20140201855Abstract: Described are mutant luciferases, nucleic acids that encode them, cells and animals expressing them, methods of use thereof, and kits.Type: ApplicationFiled: February 9, 2012Publication date: July 17, 2014Applicant: UNIVERSITY OF MASSACHUSETTSInventors: Stephen C. Miller, David Mofford, Katryn Harwood
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Publication number: 20040219527Abstract: The invention relates to the nucleotide and amino acid sequences, and to the activity and use, of the luciferases LuAL, Lu164, Lu16, Lu39, Lu45, Lu52 and Lu22.Type: ApplicationFiled: October 1, 2003Publication date: November 4, 2004Inventors: Stefan Golz, Bernd Kalthof, Svetlana Markova, Ludmila Frank, Eugene Vysotski
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Publication number: 20090136998Abstract: Briefly described, embodiments of this disclosure include polynucleotides that encode mutant Cnidarian luciferases that exhibit modulated properties as compared to the corresponding wild-type luciferases, and the modulated properties include at least one of: modulated stability; enhanced light output; and modulated emission maximum. Embodiments of the present disclosure also include polypeptides or fragments thereof encoded by the polynucleotides, constructs including the polynucleotide, expression cassettes, cells, methods of producing the polynucleotides and polypeptides, antibodies, transgenic cells and/or animals, kits, and the like.Type: ApplicationFiled: September 6, 2006Publication date: May 28, 2009Inventors: Sanjiv S. Gambhir, Andreas M. Loening, Anna M. Wu
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Patent number: 8669103Abstract: An isolated polynucleotide encoding a modified luciferase polypeptide and substrates. The OgLuc variant polypeptide has at least 60% amino acid sequence identity to SEQ ID NO: 1 and at least one amino acid substitution at a position corresponding to an amino acid in SEQ ID NO: 1. The OgLuc variant polypeptide has at least one of enhanced luminescence, enhanced signal stability, and enhanced protein stability relative to the corresponding polypeptide of the wild-type Oplophorus luciferase.Type: GrantFiled: November 2, 2011Date of Patent: March 11, 2014Assignee: Promega CorporationInventors: Brock Binkowski, Lance P. Encell, Mary Hall, Matthew B. Robers, Michael R. Slater, Keith V. Wood, Monika G. Wood
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Patent number: 6265177Abstract: Enzymes and methods suitable for assaying ATP, and specific application for such assays are described and claimed. In particular, there is described a recombinant mutant luciferase having a mutation for example, in the amino-acid corresponding to amino acid residue number 245 in Photinus pyralis, is such that the Km for ATP of the luciferase is increased e.g. five-fold with respect to that of the corresponding non-mutated enzyme such that it is of the order of 500 &mgr;m-1 mM. Also disclosed are luciferases having additional mutations conferring improved thermostability or altered wavelength of emitted light. Recombinant polynucleotides, vectors and host cells are also disclosed, as are methods of assaying the amount of ATP in a material (e.g. cells) optionally in real-time. Also disclosed are test-kits for in vitro assays.Type: GrantFiled: August 25, 1999Date of Patent: July 24, 2001Assignee: The United States of America as represented by the Secretary of the State of DefenceInventors: David James Squirrell, Peter John White, Christopher Robin Lowe, James Augustus Henry Murray
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Patent number: 6737245Abstract: The present invention relates to bacterial luciferase expression cassettes suitable for conferring bioluminescence properties on Gram-positive bacteria, cells transformed with such cassettes, and methods of making and using such cassettes.Type: GrantFiled: September 7, 2000Date of Patent: May 18, 2004Assignee: Xenogen CorporationInventors: Kevin P. Francis, Pamela R. Contag, Danny J. Joh
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Publication number: 20120178141Abstract: Briefly described, embodiments of this disclosure include polynucleotides that encode mutant Cnidarian luciferases that exhibit modulated properties as compared to the corresponding wild-type luciferases, and the modulated properties include at least one of: modulated stability; enhanced light output; and modulated emission maximum. Embodiments of the present disclosure also include polypeptides or fragments thereof encoded by the polynucleotides, constructs including the polynucleotide, expression cassettes, cells, methods of producing the polynucleotides and polypeptides, antibodies, transgenic cells and/or animals, kits, and the like.Type: ApplicationFiled: March 22, 2012Publication date: July 12, 2012Applicants: The Regents of the University of California, The Board of Trustees of the Leland Stanford Junior UniversityInventors: Sanjiv S. Gambhir, Andreas M. Loening, Anna M. Wu
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Publication number: 20120174242Abstract: An isolated polynucleotide encoding a modified luciferase polypeptide and substrates. The OgLuc variant polypeptide has at least 60% amino acid sequence identity to SEQ ID NO: 1 and at least one amino acid substitution at a position corresponding to an amino acid in SEQ ID NO: 1. The OgLuc variant polypeptide has at least one of enhanced luminescence, enhanced signal stability, and enhanced protein stability relative to the corresponding polypeptide of the wild-type Oplophorus luciferase.Type: ApplicationFiled: November 2, 2011Publication date: July 5, 2012Inventors: Brock Binkowski, Lance P. Encell, Mary Hall, Matthew B. Robers, Michael R. Slater, Keith V. Wood, Monika G. Wood
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Publication number: 20030119012Abstract: The present invention relates to the field of DNA recombinant technology. More specifically, this invention relates to fusion proteins comprising an ATP generating polypeptide joined to a polypeptide that converts ATP into a detectable entity. Accordingly, this invention focuses on sulfurylase-luciferase fusion proteins. This invention also relates to pharmaceutical compositions containing the fusion proteins and methods for using them.Type: ApplicationFiled: April 11, 2002Publication date: June 26, 2003Inventors: Maithreyan Srinivasan, Michael Reifler
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Publication number: 20030113747Abstract: The present invention relates to the field of DNA recombinant technology. More specifically, this invention relates to fusion proteins comprising an ATP generating polypeptide joined to a polypeptide that converts ATP into a detectable entity. Accordingly, this invention focuses on sulfurylase-luciferase fusion proteins. This invention also relates to pharmaceutical compositions containing the fusion proteins and methods for using them.Type: ApplicationFiled: May 23, 2002Publication date: June 19, 2003Inventors: Maithreyan Srinivasan, Michael Reifler
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Patent number: 7666616Abstract: The present invention relates to genetic reporters. Specifically, the present invention is directed to a modified gene encoding a luciferase for high level expression in an organism with a bias for cytosine (C) or guanine (G) in the third position of the codon.Type: GrantFiled: September 30, 2005Date of Patent: February 23, 2010Assignees: Trustees of Dartmouth College, Regents of the University of MinnesotaInventors: Jay C. Dunlap, Jennifer Loros, Arun Mehra, Van D. Gooch
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Patent number: 6956114Abstract: The present invention relates to the field of DNA recombinant technology. More specifically, this invention relates to fusion proteins comprising an ATP generating polypeptide joined to a polypeptide that converts ATP into a detectable entity. Accordingly, this invention focuses on sulfurylase-luciferase fusion proteins. This invention also relates to pharmaceutical compositions containing the fusion proteins and methods for using them.Type: GrantFiled: April 11, 2002Date of Patent: October 18, 2005Assignee: '454 CorporationInventors: Maithreyan Srinivasan, Michael Reifler
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Patent number: 8735559Abstract: A polynucleotide encoding a biosensor polypeptide comprising a modified circularly-permuted thermostable luciferase and a linker linking the C-terminal portion of the thermostable luciferase to the N-terminal portion of the thermostable luciferase. The modified circularly-permuted thermostable luciferase is modified relative to a parental circularly-permuted thermostable luciferase. The linker contains a sensor region capable of interacting with a target molecule in a cell. The modified circularly-permuted thermostable luciferase has an enhanced response after interaction of the biosensor with the target molecule relative to the parental circularly-permuted thermostable luciferase in the presence of the target molecule. Alternatively, the modified circularly-permuted thermostable luciferase has an enhanced response after interaction of the biosensor with the target molecule relative to the modified circularly-permuted thermostable luciferase in the absence of the target molecule.Type: GrantFiled: May 11, 2011Date of Patent: May 27, 2014Assignee: Promega CorporationInventors: Brock Binkowski, Braeden Butler, Lance P. Encell, Frank Fan, Brad Hook, Paul Otto, Gediminas Vidugiris, Susan Wigdal, Kristopher Zimmerman
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Patent number: 10006009Abstract: There has been a demand for a codon-optimized gene for the mutated catalytic domain of Oplophorus luciferase, which is capable of efficiently expressing a protein both in a cultured animal cell and Escherichia coli. There has also been a demand for a substrate coelenterazine analog showing a higher activity than that of native 19 kDa protein. The invention provides a polynucleotide comprising a polynucleotide consisting of the nucleotide sequence of SEQ ID NO: 2. According to the invention, bis-coelenterazine is used as a substrate coelenterazine analog suitable for the photoprotein encoded by the polynucleotide comprising the polynucleotide consisting of the nucleotide sequence of SEQ ID NO: 2.Type: GrantFiled: October 12, 2016Date of Patent: June 26, 2018Assignee: JNC CORPORATIONInventors: Satoshi Inouye, Junichi Sato
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Publication number: 20130295136Abstract: A high throughput bioluminescence mutant screening procedure is disclosed. This procedure utilizes robotics, and bacterial luciferase to allow real-time monitoring of mutant viability. The procedure was used to decelop a live attenuated vaccine for a catfish against E. ictaluri, which is further claimed herein. Additionally, genes from other bacterial species are disclosed which may also be used to create vaccines.Type: ApplicationFiled: July 11, 2013Publication date: November 7, 2013Applicant: MISSISSIPPI STATE UNIVERSITYInventors: Mark L. Lawrence, Attila Karsi
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Publication number: 20100040652Abstract: A high throughput bioluminescence mutant screening procedure is disclosed. This procedure utilizes robotics, and bacterial luciferase to allow real-time monitoring of mutant viability. The procedure was used to decelop a live attenuated vaccine for a catfish against E. ictaluri, which is further claimed herein. Additionally, genes from other bacterial species are disclosed which may also be used to create vaccines.Type: ApplicationFiled: June 23, 2009Publication date: February 18, 2010Applicant: MISSISSIPPI STATE UNIVERSITYInventors: Mark L. Lawrence, Attila Karsi
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Patent number: 7109315Abstract: Isolated and purified nucleic acids encoding green fluorescent proteins from Renilla reniformis and the green fluorescent protein encoded thereby are also provided. Mutants of the nucleic acid molecules and the modified encoded proteins are also provided. Compositions and combinations comprising the green fluorescent proteins and/or the luciferase are further provided.Type: GrantFiled: March 15, 2001Date of Patent: September 19, 2006Assignees: Prolone, Ltd.Inventors: Bruce Bryan, Christopher Szent-Gyorgyi, William Szczepaniak
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Patent number: 7056728Abstract: The present invention relates to bacterial luciferase transposon cassettes suitable for conferring bioluminescence properties on a Gram-positive bacteria, Gram-negative bacteria, and other organisms of interest. The invention further includes cells transformed with vectors carrying the transposon cassettes, cells whose genomes have been modified by introduction of such cassettes, and methods of making and using such transposon cassettes, transposon cassette vectors, and cells containing the transposons.Type: GrantFiled: June 21, 2001Date of Patent: June 6, 2006Assignee: Xenogen CorporationInventors: Kevin P. Francis, Anthony F. Purchio
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Publication number: 20080293086Abstract: This invention provides compositions and methods for monitoring and regulating the production of a target product of a biochemical pathway in an organism, such as butanol. A gene encoding a light-emitting reporter molecule, such as luciferase, is operatively linked with a transcription regulatory nucleotide sequence that regulates transcription of an enzyme in the pathway that signals the rate of production of the target product, such as butanol dehyrogenase. When a microorganism is transfected with such a reporter construct and cultured, the reporter is expressed contemporaneously with the enzyme. The amount of light produced by the reporter indicates amount of enzyme being produced which, in turn, signals the amount of target product being produced. When the reporter is measured in real time, it provides information that can be used to regulate culture conditions and to optimize production of the target product.Type: ApplicationFiled: September 11, 2007Publication date: November 27, 2008Inventor: Pamela Reilly Contag
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Publication number: 20120264107Abstract: This invention provides compositions and methods for monitoring and regulating the production of a target product of a biochemical pathway in an organism, such as butanol. A gene encoding a light-emitting reporter molecule, such as luciferase, is operatively linked with a transcription regulatory nucleotide sequence that regulates transcription of an enzyme in the pathway that signals the rate of production of the target product, such as butanol dehydrogenase. When a microorganism is transfected with such a reporter construct and cultured, the reporter is expressed contemporaneously with the enzyme. The amount of light produced by the reporter indicates amount of enzyme being produced which, in turn, signals the amount of target product being produced. When the reporter is measured in real time, it provides information that can be used to regulate culture conditions and to optimize production of the target product.Type: ApplicationFiled: January 18, 2012Publication date: October 18, 2012Inventor: Pamela Reilly Contag