By Measuring Catalytic Activity Patents (Class 506/11)
  • Publication number: 20140005072
    Abstract: The disclosure relates to a method of generating catalytic nucleic acid probes useful for detecting microorganisms such as bacterial pathogens. In one embodiment, the catalytic nucleic acid probes are fluorogenic DNAzymes. The disclosure also relates to catalytic nucleic acid probes and methods of using the probes for detecting microorganisms.
    Type: Application
    Filed: March 8, 2012
    Publication date: January 2, 2014
    Applicant: McMaster University
    Inventors: Yingfu Li, M. Monsur Ali, Sergio D. Aguirre
  • Publication number: 20140005241
    Abstract: The present invention relates to compounds, compositions, and methods, for treating subjects suspected of needing treatment for a Nidovirales virus infection. In certain embodiments, the compounds comprise Nidovirales helicase inhibitors that do not significantly affect helicase ATPase enzymatic activity or nucleic acid binding activity of the helicase.
    Type: Application
    Filed: June 17, 2013
    Publication date: January 2, 2014
    Applicant: The Curators of the University of Missouri
    Inventors: Stefan G. Sarafianos, Adeyemi O. Adedeji, Kamlendra Singh
  • Patent number: 8617836
    Abstract: The present invention relates to a method for determining or predicting the response of a patient diagnosed with locally advanced rectal cancer to chemoradiotherapy. The present invention also aims to provide methods and devices for predicting the response of patients diagnosed with rectal cancer to specific medicaments, radiotherapy and/or chemotherapy. More specifically, the present invention provides methods which measure kinase activity by studying phosphorylation levels and profiles in samples of said patients.
    Type: Grant
    Filed: April 12, 2010
    Date of Patent: December 31, 2013
    Assignees: PamGene B.V., Oslo University Hospital
    Inventors: Pieter Jacob Boender, Richard De Wijn, Anne Hansen Ree, Sigurd Folkvord, Kjersti Flatmark, Robby Ruijtenbeek
  • Publication number: 20130347133
    Abstract: The present invention relates to methods for identifying compounds that modulate untranslated region-dependent expression of a target gene. The invention particularly relates to using untranslated regions of a target gene or fragments thereof linked to a reporter gene to identify compounds that modulate untranslated region-dependent expression of a target gene. The methods of the present invention provide a simple, sensitive assay for high-throughput screening of libraries of compounds to identify pharmaceutical leads.
    Type: Application
    Filed: April 30, 2013
    Publication date: December 26, 2013
    Applicant: PTC Therapeutics, Inc.
    Inventor: PTC Therapeutics, Inc.
  • Publication number: 20130326644
    Abstract: A LAGLIDADG homing endonuclease variant, having mutations in two separate subdomains, each binding a distinct part of a modified DNA target half-site, said LAGLIDADG homing endonuclease variant being able to cleave a chimeric DNA target sequence comprising the nucleotides bound by each subdomain. Use of said herodimeric meganuclease and derived products for genetic engineering, genome therapy and antiviral therapy.
    Type: Application
    Filed: June 13, 2013
    Publication date: December 5, 2013
    Applicant: CELLECTIS, S.A.
    Inventor: Frederic PAQUES
  • Publication number: 20130296192
    Abstract: Methods and devices are provided for preparing a protein array having a plurality of proteins. In one embodiment, the method includes providing a plurality of nucleic acids each having a predefined sequence and expressing in vitro a plurality of proteins from the plurality of nucleic acids. In another embodiment, protein arrays having a solid surface and a microvolume are also provided. The solid surface can have a plurality of anchor oligonucleotides capable of hybridizing with a plurality of nucleic acids. The microvolume can cover each of the plurality of anchor oligonucleotides and can be configured to produce a polypeptide from each of the plurality of nucleic acids.
    Type: Application
    Filed: November 10, 2011
    Publication date: November 7, 2013
    Applicant: Gen9, Inc.
    Inventors: Joseph Jacobson, Michael E. Hudson, Larry Li-Yang Chu
  • Publication number: 20130288925
    Abstract: A method for the production of nucleic acid encoding a target protein. The method comprises (a) providing an array of RNA or DNA molecules including one or more encoding the target protein; (b) generating a target protein from the array to form RNA-protein or DNA-protein complexes in which the RNA or DNA molecule is non-covalently or covalently bound to the complex; (c) separating the complexes into compartments wherein most or all of the compartments contain no more than one complex; (d) subjecting the complexes to reaction conditions which allow target protein activity; and (e) selecting nucleic acid encoding the target protein on the basis of the activity associated therewith, wherein when the complex is a DNA-protein complex in which the DNA is non-covalently bound, step b) is performed in the absence of separate compartments for each complex.
    Type: Application
    Filed: June 19, 2013
    Publication date: October 31, 2013
    Inventors: ARVYDAS JANULAITIS, REMIGIJUS SKIRGAILA, DANGIRA SIKSNIENE
  • Publication number: 20130289022
    Abstract: Disclosed herein are methods and related compositions for identifying compounds that stabilize natively folded tetrameric ?-synuclein. These methods and compositions are useful for the treatment and diagnosis of ?-synuclein-associated diseases and disorders.
    Type: Application
    Filed: November 4, 2011
    Publication date: October 31, 2013
    Applicant: BRANDEIS UNIVERSITY
    Inventors: Dagmar Ringe, Gregory A. Petsko, Dennis J. Selkoe, Tim Bartels
  • Publication number: 20130281453
    Abstract: Serine hydrolases are implicated in malconditions such as cancer, central nervous system disorders, cardiovascular disorders, obesity, and metabolic disorders. Many serine hydrolases expressed in proteomic libraries are of unknown function in vivo. Compounds identified through library versus library screening can be used for treatment of malconditions associated with the specific serine hydrolase KIAA1363 (also known as AADACL1). A library of inhibitors of KIAA1363 was prepared and candidate compounds were identified as a potent inhibitors having submicromolar IC50 values. An exemplary compound of the invention was shown to be an effective inhibitor of prostate cancer pathogenesis. Other inhibitory compounds of the invention comprising fluorophore groups are shown to be effective in spatial and temporal localization of the serine hydrolase in cells and tissues.
    Type: Application
    Filed: October 21, 2011
    Publication date: October 24, 2013
    Applicant: The Scripps Research Institute
    Inventors: Benjamin Cravatt, Daniel Nomura, Jae W. Chang, Raymond E. Moellering, Dan Bachovehin, Weiwei Li
  • Publication number: 20130280255
    Abstract: This disclosure describes a relevant etiology of cancer and a novel anti-cancer therapeutic strategy, based on the discovery that a protein named serine protease inhibitor (SPIK/SPINK/PSTI) was up-regulated by hepatitis B and C virus infections consequently suppressing the cell apoptosis. Accordingly, the present disclosure provides, inter alia, an inhibitor of SPIK and/or a technology of suppression of over-expression of SPIK in cells. The inhibitors include: 1) chemical compounds, which can inhibit SPIK transcripts, protein activity, and gene expression, 2) SPIK siRNA (RNAi gene silence or dsRNA of SPIK, 3) DNA anti-sense and anti-SPIK antibody. Further, this disclosure provides methods of using the inhibitor as an anti-cancer agent to re-instate cancer cell apoptosis (e.g., serine protease dependent cell apoptosis).
    Type: Application
    Filed: July 8, 2013
    Publication date: October 24, 2013
    Inventors: Xuanyong Lu, Timothy M. Block
  • Publication number: 20130274126
    Abstract: Provided is a device that can detect cells or bacteria in units of a single cell or bacterium, and can further measure the amounts of activity of cells or bacteria or responses of the cells or bacteria to drugs in units of a single cell or bacterium. A plurality of partitioned regions each having about the same size as a cell or a bacterium is provided, and a plurality of types of electrical sensors 201 and 202 are arranged in each partitioned region.
    Type: Application
    Filed: March 14, 2013
    Publication date: October 17, 2013
    Applicant: HITACHI, LTD.
    Inventors: Yu ISHIGE, Masao KAMAHORI
  • Publication number: 20130274130
    Abstract: A high throughput method and apparatus for rapidly screening a plurality of genotoxicants to determine the degree and type of genotoxicity are provided.
    Type: Application
    Filed: April 11, 2013
    Publication date: October 17, 2013
    Inventors: Jeffrey D. Laskin, Diane E. Heck, Karma C. Fussell
  • Patent number: 8557742
    Abstract: Described are methods and means for enhancing enzyme activity toward insoluble substrates. This is achieved by means of in vitro compartmentalization in which an insoluble microparticle functions both as the enzyme substrate and as a structure for negative selection. Enhanced enzymes expressed from a microparticle-linked polynucleotide library preferentially degrade the microparticle releasing specific gene variants into solution. Gene variants encoding less active enzyme variants remain linked to the microparticle and may be removed through centrifugation, thus enriching the polynucleotide library for more active enzyme variants. These methods may be used to enhance cellulase and ligninase activity toward insoluble cellulosic biomass.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: October 15, 2013
    Assignees: Novozymes A/S, The Scripps Research Institute
    Inventors: Robert G. Blazej, Brian M. Paegel
  • Publication number: 20130260436
    Abstract: The invention relates to methods and compositions for identifying a candidate nucleic acid (CNA) comprising a polynucleotide sequence encoding at least a part of a natural product gene cluster (NPGC), a secondary metabolite biosynthesis cluster (SMBC), a non ribosomal peptide (NRP), a polyketide (PK) biosynthesis cluster, a protein involved in NRP and/or PK biosynthesis, a protein involved in other secondary metabolite biosynthesis, and/or a phosphopantetheinyl transferase (PPTase), by expressing the candidate nucleic acid (CNA) to form at least one PPTase, incubating the PPTase with a non ribosomal peptide synthetase (NRPS), and detecting activation of the NRPS, wherein activation indicates that said CNA comprises a polynucleotide sequence encoding at least one of the above.
    Type: Application
    Filed: September 14, 2011
    Publication date: October 3, 2013
    Applicant: Victoria LInk Limited
    Inventors: Davis Francis Ackerley, Jeremy Owen
  • Publication number: 20130252849
    Abstract: Disclosed are methods, compositions and devices for screening a protein library for proteins having a desired activity, such as capable of catalyzing the formation of a bond between two reactants. In an exemplary embodiments, a plurality of proteins are expressed in vitro from a plurality of nucleic acids, the plurality of proteins are exposed with two single stranded oligonucleotides having complementary sequences, each oligonucleotide having a reactant and a fluorophore, the fluorescence of the protein-reactant-oligonucleotide-fluorophore complexes is detected and the complexes showing detectable fluorescence energy transfer are isolated, thereby isolating proteins having the desired enzymatic activity.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 26, 2013
    Applicant: Gen9, Inc.
    Inventors: Michael E. Hudson, Joseph Jacobson
  • Publication number: 20130252850
    Abstract: The invention relates to a variant of a parent Termamyl-like alpha-amylase, comprising mutations in two, three, four, five or six regions/positions. The variants have increased stability at high temperatures (relative to the parent). The invention also relates to a DNA construct comprising a DNA sequence encoding an alpha-amylase variant of the invention, a recombinant expression vector which carries a DNA construct of the invention, a cell which is transformed with a DNA construct of the invention, the use of an alpha-amylase variant of the invention for washing and/or dishwashing, textile desizing, starch liquefaction, a detergent additive comprising an alpha-amylase variant of the invention, a manual or automatic dishwashing detergent composition comprising an alpha-amylase variant of the invention, a method for generating a variant of a parent Termamyl-like alpha-amylase, which variant exhibits increased.
    Type: Application
    Filed: May 20, 2013
    Publication date: September 26, 2013
    Applicant: NOVOZYMES A/S
    Inventors: Allan Svendsen, Soren Kjaerulff, Henrik Bisgaard-Frantzen, Carsten Andersen
  • Publication number: 20130245094
    Abstract: The present invention relates to an aptazyme comprising an aptamer for hepatitis C virus (HCV) RNA-encoding component; a hammerhead ribozyme comprising an antisense sequence to microRNA at the site released by self-cleavage; and a communication module sequence that connects the aptamer and hammerhead ribozyme and triggers a self-cleavage activity of the hammerhead ribozyme upon binding of the aptamer with the HCV RNA-encoding component. The present aptazyme inhibits microRNA activity specifically in HCV proliferating cells and thus a composition of the present invention comprising the aptazyme can be effectively used for treatment of HCV-related diseases.
    Type: Application
    Filed: September 16, 2011
    Publication date: September 19, 2013
    Applicant: INDUSTRY-ACADEMIC COOPERATION FOUNDATION DANKOOK UNIVERSITY
    Inventors: Seong-Wook Lee, Chang-Ho Lee
  • Patent number: 8536099
    Abstract: According to various embodiments, a method is provided that comprises washing an array of DNA-coated beads on a substrate, with a wash solution to remove stacked beads from the substrate. The wash solution can include inert solid beads in a carrier. The DNA-coated beads can have an average diameter and the solid beads in the wash solution can have an average diameter that is at least twice the diameter of the DNA-coated beads. The washing can form dislodged DNA-coated beads and a monolayer of DNA-coated beads. In some embodiments, first beads for forming an array are contacted with a poly(ethylene glycol) (PEG) solution comprising a PEG having a molecular weight of about 350 Da or less. In some embodiments, slides for forming bead arrays are provided as are systems for imaging the same.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: September 17, 2013
    Assignee: Life Technologies Corporation
    Inventors: Mark Oldham, George Fry, Christina Inman, John Bridgham, Timothy Hunkapillar, Charles Vann
  • Publication number: 20130231262
    Abstract: A method and engineered proteins for use therewith suitable for studying SERCA that are capable of being used in vivo and do not require protein purification or chemical labeling of SERCA, or reconstitution into artificial membranes. The engineered protein for calcium handling within human cells includes a two-color SERCA construct having three component proteins fused together. The three component proteins include a blue fluorescent protein (cerulean), SERCA2a and a yellow fluorescent protein (YFP), or a red fluorescent protein (tagRFP acceptor), SERCA and a green fluorescent protein (GFP). The method of determining SERCA activity for optimization of cardiac function includes resolving structure changes of the two-color SERCA construct. The two-color SERCA constructs are catalytically active and able to pump calcium following the step of resolving structure changes.
    Type: Application
    Filed: March 5, 2013
    Publication date: September 5, 2013
    Applicant: Loyola University Chicago
    Inventor: Seth L. Robia
  • Publication number: 20130231265
    Abstract: Disclosed are compositions and methods for measuring tyrosine kinase activity.
    Type: Application
    Filed: February 7, 2013
    Publication date: September 5, 2013
    Inventors: Laurie Louise Parker, Andrew Michael Lipchik, Scott Charles Bolton
  • Publication number: 20130224259
    Abstract: The present disclosure provides DDAH modulators. Thus, the present disclosure provides a method of treating a patient suffering from a disorder characterized by excessive NO production and/or elevated DDAH activity, the method comprising administering to said patient an effective amount of a compound of one of formulae I-X. The present disclosure also provides a pharmaceutical composition comprising a compound of one of formulae I-X.
    Type: Application
    Filed: February 13, 2013
    Publication date: August 29, 2013
    Applicant: The Board of Trustees of the Leland Stanford Junior University
    Inventor: The Board of Trustees of the Leland Stanford Junior University
  • Publication number: 20130217595
    Abstract: The present invention relates to a method for the identification of modulators of catechol O-methyltransferase enzyme activity (COMT).
    Type: Application
    Filed: January 25, 2013
    Publication date: August 22, 2013
    Applicant: Hoffman-La Roche Inc.
    Inventor: Hoffman-La Roche Inc.
  • Publication number: 20130212716
    Abstract: Human PFK genes are identified as modulators of the IGFR pathway, and thus are therapeutic targets for disorders associated with defective IGFR function. Methods for identifying modulators of IGFR, comprising screening for agents that modulate the activity of PFK are provided.
    Type: Application
    Filed: April 12, 2013
    Publication date: August 15, 2013
    Applicant: EXELIXIS, INC.
    Inventor: Exelixis, Inc.
  • Publication number: 20130209488
    Abstract: The present invention relates to methods, compositions, and diagnostic tests for treating and diagnosing cancer and other related diseases that result in dysregulation of malic enzyme 2. In particular, the methods and compositions include combination therapy, such as with a combination of two or more ME2 inhibitors or a combination of an ME2 inhibitor and an anticancer agent.
    Type: Application
    Filed: August 5, 2011
    Publication date: August 15, 2013
    Applicant: BETH ISRAEL DEACONESS MEDICAL CENTER, INC
    Inventors: Vikas P. Sukhatme, Jian-Guo Ren
  • Publication number: 20130210652
    Abstract: The present invention relates to an apparatus to detect biological parameters in the analysis of a sample, specimen, or assay. The system includes a device for determining one or more values for one or more measurable characteristics of a sample. In an aspect, the device can be configured to operate on any of a mobile device, tablet computer, laptop computer, desktop computer, digital pen, medical testing tool or electronic device. In another aspect, the device can comprise a synchronization component that synchronizes the device to a network system.
    Type: Application
    Filed: November 1, 2012
    Publication date: August 15, 2013
    Applicant: NANOAXIS, LLC
    Inventors: Krishnan Chakravarthy, Siddhartha Kamisetti, Himanshu Subhash Amin
  • Publication number: 20130209437
    Abstract: A method for engineering I-CreI homing endonuclease variants able to cleave mutant I-CreI sites having variation in positions ±8 to ±10. A I-CreI homing endonuclease variant obtainable by said method, a vector encoding said variant, a cell, an animal or a plant modified by said vector. Use of said I-CreI endonuclease variant and derived products for genetic engineering, genome therapy and antiviral therapy.
    Type: Application
    Filed: January 17, 2013
    Publication date: August 15, 2013
    Applicant: CELLECTIS
    Inventor: Cellectis
  • Publication number: 20130190209
    Abstract: Compositions and methods are provided for enzymes with altered properties that involve a systematic approach to mutagenesis and a screening assay that permits selection of the desired proteins. Embodiments of the method are particularly suited for modifying specific properties of restriction endonucleases such as star activity. The compositions includes restriction endonucleases with reduced star activity as defined by an overall fidelity index improvement factor.
    Type: Application
    Filed: January 2, 2013
    Publication date: July 25, 2013
    Applicant: NEW ENGLAND BIOLABS, INC.
    Inventor: NEW ENGLAND BIOLABS, INC.
  • Publication number: 20130190189
    Abstract: The invention describes a method for isolating one or more genetic elements encoding a gene product having a desired activity, comprising of the steps of: (a) compartmentalising genetic elements into microcapsules; (b) expressing the genetic elements to produce their respective gene products within the microcapsules; (c) sorting the genetic elements which produce the gene product having a desired activity. The invention enables the in vitro evolution of nucleic acids by repeated mutagenesis and iterative applications of the method of the invention.
    Type: Application
    Filed: January 3, 2013
    Publication date: July 25, 2013
    Applicant: Medical Research Council
    Inventor: Medical Research Council
  • Publication number: 20130164820
    Abstract: Methods for identifying modified proteases with modified substrate specificity or other properties are provided. The methods screen candidate and modified proteases by contacting them with a substrate, such as a serpin, an alpha macroglobulins or a p35 family protein or modified serpins and modified p35 family members or modified alpha macroglobulins, that, upon cleavage of the substrate, traps the protease by forming a stable complex. Also provided are modified proteases.
    Type: Application
    Filed: May 18, 2012
    Publication date: June 27, 2013
    Inventor: Edwin L. Madison
  • Publication number: 20130165341
    Abstract: The present disclosure relates to compositions and methods for screening a plurality of polypeptide variants.
    Type: Application
    Filed: February 1, 2013
    Publication date: June 27, 2013
    Applicant: Codexis, Inc.
    Inventor: Codexis, Inc.
  • Publication number: 20130130935
    Abstract: Compositions and methods are provided for enzymes with altered properties that involve a systematic approach to mutagenesis and a screening assay that permits selection of the desired proteins. Embodiments of the method are particularly suited for modifying specific properties of restriction endonucleases such as star activity. The compositions includes restriction endonucleases with reduced star activity as defined by an overall fidelity index improvement factor.
    Type: Application
    Filed: January 8, 2013
    Publication date: May 23, 2013
    Applicant: NEW ENGLAND BIOLABS, INC.
    Inventor: New England Biolabs, Inc.
  • Publication number: 20130123143
    Abstract: The present invention relates to a method of identifying a compound having an antiarrhythmic effect and to a use of adenosine-diphospho-ribose cyclase (cardiac ADPRC) for the identification of a compound having said effect.
    Type: Application
    Filed: July 25, 2011
    Publication date: May 16, 2013
    Applicant: SANOFI
    Inventors: Aimo Kannt, Dieter Kadereit, Heinz Goegelein
  • Publication number: 20130123142
    Abstract: The present invention provides a composition for preventing or treating diabetes, comprising an NAD glycohydrolase (NADase) inhibitor as an active ingredient. The NAD glycohydrolase (NADase) inhibitor according to the present invention has the effect of reducing blood glucose levels and promoting insulin secretion and thus can be effectively used as a therapeutic agent for diabetes, particularly type II diabetes.
    Type: Application
    Filed: October 19, 2012
    Publication date: May 16, 2013
    Applicant: Industrial Cooperation Foundation Chonbuk National University
    Inventor: Industrial Cooperation Foundation Chonbuk National University
  • Publication number: 20130123115
    Abstract: The invention discloses cellulase enzymes with optimized properties for processing of cellulose- and lignocellulose-containing substrates. In particular, cellobiohydrolase enzymes with preferred characteristics are disclosed. The present invention provides fusion, insertion, deletion and/or substitution variants of such enzymes. Enzyme variants have enhanced thermostability, proteolytic stability, specific activity and/or stability at extreme pH. Nucleic acid molecules encoding said enzymes, a composition comprising said enzymes, a method for preparation, and the use for cellulose processing and/or for the production of biofuels are disclosed.
    Type: Application
    Filed: February 11, 2011
    Publication date: May 16, 2013
    Applicant: SUD-CHEMIE IP GMBH & CO. KG
    Inventors: Ulrich Kettling, Christoph Reisinger, Thomas Brück, Andre Koltermann, Jochen Gerlach, Isabel Unterstrasser, Lutz Röcher, Markus Rarbach, Jörg Claren, Andreas Kohl, Jan Carsten Pieck, Dominik Schlosser
  • Publication number: 20130123141
    Abstract: The present invention provides compositions including peptide display scaffolds that present at least one candidate peptide and at least one detectable moiety in at least one of the N-terminal and C-terminal candidate peptide presenting domains that when expressed in a cell are accessible at a surface of the cell outermembrane. In addition, the present invention also provides kits and methods for screening a library of cells presenting the candidate peptides in peptide display scaffolds to identify a ligand for an enzyme.
    Type: Application
    Filed: September 28, 2012
    Publication date: May 16, 2013
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventor: THE REGENTS OF THE UNIVERSITY OF CALIF
  • Publication number: 20130115677
    Abstract: Compositions and methods are provided for enzymes with altered properties that involve a systematic approach to mutagenesis and a screening assay that permits selection of the desired proteins. Embodiments of the method are particularly suited for modifying specific properties of restriction endonucleases such as star activity. The compositions includes restriction endonucleases with reduced star activity as defined by an overall fidelity index improvement factor.
    Type: Application
    Filed: January 8, 2013
    Publication date: May 9, 2013
    Applicant: NEW ENGLAND BIOLABS, INC.
    Inventor: NEW ENGLAND BIOLABS, INC.
  • Publication number: 20130115678
    Abstract: Compositions and methods are provided for enzymes with altered properties that involve a systematic approach to mutagenesis and a screening assay that permits selection of the desired proteins. Embodiments of the method are particularly suited for modifying specific properties of restriction endonucleases such as star activity. The compositions includes restriction endonucleases with reduced star activity as defined by an overall fidelity index improvement factor.
    Type: Application
    Filed: January 8, 2013
    Publication date: May 9, 2013
    Applicant: NEW ENGLAND BIOLABS, INC.
    Inventor: NEW ENGLAND BIOLABS, INC.
  • Publication number: 20130116152
    Abstract: The present application relates to a method of assaying ubiquitination in a sample by combining ubiquitin together with a substrate in a sample containing UBE1, UbcH3, Skp2-isoform 1, Skp1, Cul1, Rbx1, Cks1, CDK2 and Cyclin E1 under conditions suitable for ubiquitination to take place, exposing the sample to a labelled binding partner which is specific for the ubiquitin, and measuring the amount of ubiquitin bound to the substrate.
    Type: Application
    Filed: April 28, 2011
    Publication date: May 9, 2013
    Inventor: Jonathan Peter Clark
  • Publication number: 20130115676
    Abstract: Compositions and methods are provided for enzymes with altered properties that involve a systematic approach to mutagenesis and a screening assay that permits selection of the desired proteins. Embodiments of the method are particularly suited for modifying specific properties of restriction endonucleases such as star activity. The compositions includes restriction endonucleases with reduced star activity as defined by an overall fidelity index improvement factor.
    Type: Application
    Filed: January 8, 2013
    Publication date: May 9, 2013
    Applicant: NEW ENGLAND BIOLABS, INC.
    Inventor: NEW ENGLAND BIOLABS, INC.
  • Publication number: 20130115679
    Abstract: Compositions and methods are provided for enzymes with altered properties that involve a systematic approach to mutagenesis and a screening assay that permits selection of the desired proteins. Embodiments of the method are particularly suited for modifying specific properties of restriction endonucleases such as star activity. The compositions includes restriction endonucleases with reduced star activity as defined by an overall fidelity index improvement factor.
    Type: Application
    Filed: January 8, 2013
    Publication date: May 9, 2013
    Applicant: NEW ENGLAND BIOLABS, INC.
    Inventor: NEW ENGLAND BIOLABS, INC.
  • Publication number: 20130109575
    Abstract: The present invention generally relates to systems and methods to create stable emulsions with low rates of exchange of molecules between microdroplets.
    Type: Application
    Filed: December 22, 2010
    Publication date: May 2, 2013
    Applicant: RAINDANCE TECHNOLOGIES, INC.
    Inventors: Felix Kleinschmidt, Andrew David Griffiths, François Caron, Abdeslam El Harrak, Eric Brouzes, Darren Link
  • Publication number: 20130102499
    Abstract: An object is to provide a means which is useful for the development of an anti-malaria agent. It was found that a mitochondrial DNA polymerase of falciparum malaria shows a bivalent iron ion requirement. Thus, disclosed is a method for measuring the activity of a DNA polymerase, including the steps of: (1) incubating a solution containing a bivalent iron ion, a mitochondrial DNA polymerase of falciparum malaria, template DNA, and at least one deoxyribonucleoside triphosphate or deoxyribonucleoside triphosphate derivative; (2) detecting the synthesized double-stranded DNA; and (3) calculating the activity of the DNA polymerase from the result of the detection carried out in step (2).
    Type: Application
    Filed: June 17, 2011
    Publication date: April 25, 2013
    Applicants: OCHANOMIZU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY
    Inventors: Narie Sasaki, Kimiko Murofushi, Katsura Maeda
  • Publication number: 20130102498
    Abstract: Novel substrates for detection of activity of amyloid beta degrading enzyme, such as Neprilysin (NEP) and insulin degrading enzyme (IDE), associated with Alzheimer's disease, are provided. A quenched fluorogenic peptide substrate containing the first seven residues of the A?peptide plus a C-terminal Cys residue to detect neprilysin activity with a fluorophore attached to the C-terminal Cys and a quencher linked to the N-terminus of the peptide is disclosed. An assay system sensitive to endopeptidase activity of NEP and IDE, but insensitive to other A?-degrading enzymes is disclosed. Active compounds are identified by a cell-based assay system for high-throughput screening.
    Type: Application
    Filed: May 8, 2012
    Publication date: April 25, 2013
    Applicant: ACADEMIA SINICA
    Inventors: Rita P.-Y. Chen, Steven Sheng-Shih Wang, Chaur-Jong Hu, Po-Ting CHEN
  • Publication number: 20130072404
    Abstract: The present invention relates to systems and methods for generating microdroplets with varying concentrations of a particular solute from a solution at fixed concentration.
    Type: Application
    Filed: October 7, 2010
    Publication date: March 21, 2013
    Applicants: UNIVERSITE DE STRASBOURG, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Oliver Jon Miller, Lucas Frenz, Andrew David Griffiths, Christoph Merten, Abdeslam El Harrak
  • Publication number: 20130071907
    Abstract: A bacillus composition characterized by fast germination and outgrowth in bile salts (simulated gut environment) and by high-level secretion of phytase. The bacillus composition may be used as supplement in animal feed where it has a probiotic (health promoting) effect and increases the digestion and availability of nutrients from animal feeds.
    Type: Application
    Filed: November 14, 2012
    Publication date: March 21, 2013
    Applicant: Chr. Hansen A/S
    Inventor: Chr. Hansen A/S
  • Publication number: 20130045992
    Abstract: Proteinopathies result from the proteasome not acting efficiently enough to eliminate harmful proteins and prevent the formation of the pathogenic aggregates. As described herein, inhibition of proteasome-associated deubiquitinase Usp 14 results in increased proteasome efficiency. The present invention therefore provides novel compositions and methods for inhibition of Usp14, enhancement of proteasome activity and treatment of proteinopathies.
    Type: Application
    Filed: January 28, 2011
    Publication date: February 21, 2013
    Applicant: President and Fellows of Harvard College
    Inventors: Daniel J. Finley, Randall W. King, Byung-Hoon Lee, Min J. Lee, Timothy C. Gahman
  • Publication number: 20130040856
    Abstract: The disclosure relates to a method of forming a pattern having pattern elements with a plurality of sizes on a substrate surface with a tilted pen array that includes choosing a tilt geometry for a pen array with respect to a substrate, inducing the tilt geometry between the pen array and the substrate surface, and forming a pattern having pattern elements on the substrate surface with the titled pen array, whereby the size of the formed pattern elements varies across the substrate surface along the tilted axis or axes. For example, the tilt geometry is in reference to the substrate surface and comprises a first angle with respect to a first axis of the substrate and a second angle with respect to a second axis of the substrate, the second axis being perpendicular to the first axis, and at least one of the first and second angles being non-zero.
    Type: Application
    Filed: December 2, 2010
    Publication date: February 14, 2013
    Applicant: NORTHEWESTERN UNIVERSITY
    Inventors: Chad A. Mirkin, Adam B. Braunschweig, Jinan Chai, Dan J. Eichelsdoerfer, Louise R. Giam, Xing Liao, Lu Shin Wong
  • Publication number: 20130035257
    Abstract: Methods of isolating at least one cell of interest, methods of making fixed arrays, arrays comprising a glass substrate bonded to a patterned siloxane structure having inlets, outlets and microchannels, array kits, and methods of making microfluidic apparati are provided in the present application.
    Type: Application
    Filed: September 10, 2012
    Publication date: February 7, 2013
    Applicant: UNIVERSITY OF BRITISH COLUMBIA
    Inventors: Linfen YU, Karen C. CHEUNG
  • Publication number: 20130029878
    Abstract: Provided are a method for measuring histone methyltransferase activity, a method for screening for compounds that inhibit histone methyltransferase activity, a reagent kit for measuring histone methyltransferase activity, and a kit for screening for compounds that inhibit histone methyltransferase activity. A substrate compound represented by general formula (I): R1—X—K—R2 (I), or a salt thereof, wherein R1 represents a hydrogen atom or a protecting group for an amino terminus; X represents a peptide consisting of 0 or 1 or more amino acid residues; K represents a lysine residue; and R2 represents a dye label linked via an amide bond to the carbonyl terminus of a lysine residue, wherein the cleavage of the amide bond by peptidase changes the fluorescence property or chromogenic property of the dye label, and the methylation of the ? amino group of the lysine residue by the histone methyltransferase decreases susceptibility to peptidase, is used.
    Type: Application
    Filed: April 15, 2011
    Publication date: January 31, 2013
    Applicant: KYUSHU INSTITUTE OF TECHNOLOGY
    Inventors: Norikazu Nishino, Yasushi Takemoto, Akihiro Ito, Minoru Yoshida
  • Publication number: 20130029877
    Abstract: The invention generally relates to methods and apparatuses for optimizing conditions for optical mapping. In certain embodiments, methods of the invention involve providing a substrate including a gradient of silanes in a first direction, introducing to the substrate, a gradient of enzyme activity in a second direction, contacting a plurality of enzymes and a plurality of nucleic acids to the substrate, and analyzing enzymatic activity and interaction of the nucleic acids with the substrate, thereby determining the optimal conditions for optical mapping of the nucleic acid.
    Type: Application
    Filed: July 26, 2011
    Publication date: January 31, 2013
    Applicant: OPGEN, INC.
    Inventors: Colin William Dykes, Trevor Wagner, Adam Michael Briska, Wenlong Jiang