Streptomyces Patents (Class 435/886)
  • Patent number: 9878054
    Abstract: In certain embodiments, this disclosure relates to pharmaceutical formulations for polypeptide and lipophilic moiety conjugates suitable for injection into humans and other animals and methods of preparation. In certain embodiments, the disclosure relates to a method of preparing the formulation comprising lyophilizing, solubilizing in ammonium acetate, filtering to create mono-disperse particles, re-lyophilizing, and solubilizing the micelles in a dextrose solution for injection.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: January 30, 2018
    Assignee: Tufts Medical Center, Inc.
    Inventor: Athan Kuliopulos
  • Patent number: 8871266
    Abstract: Probiotic microorganisms are micro encapsulated by dispersing the probiotic microorganism in an aqueous suspension of a film forming protein and a carbohydrate; in an oil in water emulsion of a film forming protein and a carbohydrate and a fat; or in an oil which is subsequently dispersed in a film forming protein and a carbohydrate. The emulsion or suspension may be dried to form a powder. The probiotic may be dispersed in oil and then emulsified with the aqueous suspension and then dried to produce an encapsulated oil be dried to produce a powder. Oil suspended probiotics may be preferred where the probiotic is water sensitive. The preferred protein is casein or whey protein and the carbohydrate may be a resistant starch or a saccharide with a reducing sugar group. Where the probiotic is oxygen sensitive the protein carbohydrate is heated to create Maillard reaction products in the encapsulating film.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: October 28, 2014
    Assignee: Commonwealth Scientific & Industrial Research Organisation
    Inventors: Ross Crittenden, Luz Sanguansri, Mary Ann Augustin
  • Patent number: 8853357
    Abstract: The invention discloses highly purified daptomycin and to pharmaceutical compositions comprising this compound. The invention discloses a method of purifying daptomycin comprising the sequential steps of anion exchange chromatography, hydrophobic interaction chromatography and anion exchange chromatography. The invention also discloses a method of purifying daptomycin by modified buffer enhanced anion exchange chromatography. The invention also discloses an improved method for producing daptomycin by fermentation of Streptomyces roseosporus. The invention also discloses high pressure liquid chromatography methods for analysis of daptomycin purity. The invention also discloses lipopeptide micelles and methods of making the micelles. The invention also discloses methods of using lipopeptide micelles for purifying lipopeptide antibiotics, such as daptomycin. The invention also discloses using lipopeptide micelles therapeutically.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: October 7, 2014
    Assignee: Cubist Pharmaceuticals, Inc.
    Inventors: Thomas J. Kelleher, Jan-Ji Lai, Joseph P. DeCourcey, Paul D. Lynch, Maurizio Zenoni, Auro R. Tagliani
  • Patent number: 8772253
    Abstract: Aureolic acid derivatives, process for obtaining them and uses thereof. This invention provides a bacterial strain that produces compound belonging to the family of aureolic acids useful in the treatment of cancer or nervous system diseases.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: July 8, 2014
    Assignee: Entrechem, S.L.
    Inventors: Luz Elena Núñez González, Nuria Menéndez Sánchez, Javier González Sabin, Francisco Moris Varas, Beatriz García Fernández, Maria Pérez Solares, Alfredo Fernández Braña, Maria del Carmen Méndez Fernández, José Antonio Salas Fernández
  • Patent number: 8426169
    Abstract: The present invention provides compounds characterized by the formula (I), where each of the substituent radicals is described in the specification. The invention also describes the use of said compounds in the treatment of various diseases, including: cancer or tumoral processes in general, Paget's disease, hypercalcaemia, hypercalciuria and neurological diseases (inter alia, Parkinson's, Alzheimer's, Huntington's).
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: April 23, 2013
    Assignees: University of Kentucky Research Foundation, Universidad de Oviedo
    Inventors: Jürgen Rohr, Irfan Baig, José Antonio Salas Fernández, Alfredo Fernández Braña, Carmen Méndez Fernández, Mariá Pérez Solares
  • Patent number: 8129342
    Abstract: The invention discloses highly purified daptomycin and to pharmaceutical compositions comprising this compound. The invention discloses a method of purifying daptomycin comprising the sequential steps of anion exchange chromatography, hydrophobic interaction chromatography and anion exchange chromatography. The invention also discloses a method of purifying daptomycin by modified buffer enhanced anion exchange chromatography. The invention also discloses an improved method for producing daptomycin by fermentation of Streptomyces roseosporus. The invention also discloses high pressure liquid chromatography methods for analysis of daptomycin purity. The invention also discloses lipopeptide micelles and methods of making the micelles. The invention also discloses methods of using lipopeptide micelles for purifying lipopeptide antibiotics, such as daptomycin. The invention also discloses using lipopeptide micelles therapeutically.
    Type: Grant
    Filed: September 22, 2010
    Date of Patent: March 6, 2012
    Assignee: Cubist Pharmaceuticals, Inc.
    Inventors: Thomas J. Kelleher, Jan-Ji Lai, Joseph P. DeCourcey, Paul D. Lynch, Maurizio Zenoni, Auro R. Tagliani
  • Patent number: 8058238
    Abstract: The invention discloses highly purified daptomycin and to pharmaceutical compositions comprising this compound. The invention discloses a method of purifying daptomycin comprising the sequential steps of anion exchange chromatography, hydrophobic interaction chromatography and anion exchange chromatography. The invention also discloses a method of purifying daptomycin by modified buffer enhanced anion exchange chromatography. The invention also discloses an improved method for producing daptomycin by fermentation of Streptomyces roseosporus. The invention also discloses high pressure liquid chromatography methods for analysis of daptomycin purity. The invention also discloses lipopeptide micelles and methods of making the micelles. The invention also discloses methods of using lipopeptide micelles for purifying lipopeptide antibiotics, such as daptomycin. The invention also discloses using lipopeptide micelles therapeutically.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: November 15, 2011
    Assignee: Cubist Pharmaceuticals, Inc.
    Inventors: Thomas Kelleher, Jan-Ji Lai, Joseph P. DeCourcey, Paul Lynch, Maurizio Zenoni, Auro Tagliani
  • Patent number: 7375088
    Abstract: This invention relates to a new class of polyene polyketides, their pharmaceutically acceptable salts and derivatives, and to methods for obtaining the compounds. One method of obtaining these compounds is by cultivation of novel strains of Streptomyces aizunensis; another method involves expression of biosynthetic pathway genes in transformed host cells. The present invention further relates to the novel strains of Streptomyces aizunensis used to produce these compounds, to the use of these compounds and their pharmaceutically acceptable salts and derivatives as pharmaceuticals, in particular to their use as inhibitors of fungal cell growth and cancer cell growth. The invention also relates to pharmaceutical compositions comprising these novel polyketides or a pharmaceutically acceptable salts or derivatives thereof. Finally, the invention relates to novel polynucleotide sequences and their encoded proteins, which are involved in the biosynthesis of these novel polyketides.
    Type: Grant
    Filed: January 21, 2004
    Date of Patent: May 20, 2008
    Assignee: Thallion Pharmaceuticals Inc.
    Inventors: Brian O. Bachmann, James B. McAlpine, Emmanuel Zazopoulos, Chris M. Farnet
  • Patent number: 7294486
    Abstract: There is described a process for the synthesis of a fluoronucleoside compound, said process comprising mixing a substrate and an enzyme from Streptomyces cattelya as catalyst. The process may be used to produce an 18F labelled fluoronucleoside compound. There is also described an enzyme derived from Streptomyces cattelya which has the capacity to catalyse the synthesis of a fluoronucleoside compound.
    Type: Grant
    Filed: September 5, 2002
    Date of Patent: November 13, 2007
    Assignee: The University Court of the University of St. Andrews
    Inventors: David O'Hagan, Christoph Schaffrath
  • Patent number: 7189558
    Abstract: In one aspect, the present invention provides an improved method for the manufacture of Pravastatin sodium salt by fermentation under optimal fermentation parameters using a new strain of Streptomyces flavidovirens.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: March 13, 2007
    Assignee: Biocon Limited
    Inventors: Ramavana Gururaja, Anuj Goel, Madhavan Sridharan, Ramakrishnan Sadhana Melarkode, Madhav Kulkarni, Acharya Poornaprajna, Deepthy Sathyanathan, Sambasivam Ganesh, Shrikumar Suryanarayan
  • Patent number: 7112432
    Abstract: An isolated gene encodes for a L-proline-3-hydroxylase having the amino acid sequence of SEQ ID NOS: 1, 2, 15, 16 and 17, or for a protein having enzymatic activity to hydroxylate the 3-position of L-proline and to act on free L-proline in the presence of 2-ketoglutaric acid and divalent iron ions to produce cis-3-hydroxy-L-proline. The gene is inserted into a vector and the resulting recombinant DNA is used to create a transformant. L-proline-3-hydroxylase is produced by culturing the transformant in a medium.
    Type: Grant
    Filed: June 10, 2004
    Date of Patent: September 26, 2006
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Akio Ozaki, Hideo Mori, Takeshi Shibasaki, Katsuhiko Ando, Keiko Ochiai, Shigeru Chiba, Yoichi Uosaki
  • Patent number: 7101695
    Abstract: Embodiments of the invention generally provide methods and compositions for producing recombinant transglutaminases. The purified recombinant transglutaminases of the invention are reactive to a broad range of compounds and exhibit broad substrate activity. In one embodiment, Streptoverticillium mobaraense (ATCC 29032), and Streptoverticillium cinnamoneum (ATCC 11874) recombinant transglutaminase fusion proteins purified from E. coli are provided to a better yield, higher purity, and activity than hitherto possible by recombinant DNA technology.
    Type: Grant
    Filed: August 28, 2002
    Date of Patent: September 5, 2006
    Inventor: Szu-Yi Chou
  • Patent number: 7078195
    Abstract: This invention relates to new antibiotics designated AA-896-A1, AA-896-A2, AA-896-A3, AA-896-A4, AA-896-A5, AA-896-A6, AA-896-Bl, AA-896-B2, AA-896-B3, AA-896-B4, AA-896-B5, AA-896-B6, AA-896-B7, AA-896-C1, AA-896-C2, AA-896-C3, AA-896-C4, AA-896-C5, AA-896-D1, AA-896-D2, AA-896-D3 and AA-896-D4 derived from the microorganism Streptomyces spp. LL-AA896 which are useful an anti-bacterial agents.
    Type: Grant
    Filed: November 14, 2003
    Date of Patent: July 18, 2006
    Assignee: Wyeth Holdings Corporation
    Inventors: Guy Thomas Carter, Jason Arnold Lotvin, Leonard Alexander McDonald
  • Patent number: 6930130
    Abstract: The present invention relates to novel active compounds named Citrullimycines, which are obtainable by cultivation of Streptomyces sp. ST 101396 (DSM 13309), and to their pharmaceutically acceptable salts and derivatives. The present invention further relates to a process for the production of the Citrullimycines, to the microorganism Streptomycetes sp. ST 101396 (DSM 13309), to the use of the Citrullimycines and their pharmaceutically acceptable salts and derivatives as pharmaceuticals, for example as inhibitors of the neurotensin receptor, and to pharmaceutical compositions comprising Citrullimycines or a pharmaceutically acceptable salt or derivative thereof.
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: August 16, 2005
    Assignee: Aventis Pharma Deutschland GmbH
    Inventors: Cordula Hopmann, Michael Kurz, Mark Brönstrup, Joachim Wink
  • Patent number: 6878532
    Abstract: A novel method of producing PS is described herein. The method first involves producing PLD enzyme through the use of enzyme-producing microorganisms. The PLD enzyme is reacted with a lecithin and source of serine to produce the phosphatidylserine (PS). The method differs from prior methods in several ways. First, it incorporates a novel strain of PLD enzyme-producing organism in a preferred embodiment. It is also the first known PS production method that allows for the reuse of the enzyme and serine components to enhance efficiency and productivity. It further incorporates a novel solvent system, unique stabilization agents for the PLD enzyme, as well as optimized reaction conditions.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: April 12, 2005
    Assignee: Sioux Biochemical, Inc.
    Inventor: Randal Meyer
  • Patent number: 6852317
    Abstract: A novel antibiotic-producing Streptomyces sp. is provided that exhibits antifungal activity only on certain specific plant pathogens. Also provided is a method of treating or protecting plants from fungal infections comprising applying an effective amount of an antibiotic-producing Streptomyces sp. having all the identifying characteristics of NRRL Accession number B-30145. The invention also relates to fungicidal compositions comprising this novel Streptomyces strain and the antibiotics and metabolites produced by this strain either alone, or in combination with other chemical and biological pesticides.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: February 8, 2005
    Assignee: AgraQuest, Inc.
    Inventors: Lori Jo Lehman, Randy Jay McCoy, Caiyao Yuan, Denise Carol Manker, Jimmy Ensio Orjala, Pamela Gail Marrone, Jorge Isaac Jimenez Santamaria
  • Patent number: 6780616
    Abstract: There have been obtained, by cultivation of Streptomyces sp. MK730-62F2 (deposit number of FERM BP-7218), antibiotic caprazamycins A to F having by the following general formula (I) wherein R is tridecyl group, 11-methyl-dodecyl group, and others. These caprazamycins have excellent antibacterial activities against various acid-fast bacteria and various bacteria as well as their drug-resistant strains.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: August 24, 2004
    Assignees: Zaidan Hojin Biseibutsu Kagaku Kenkyu Kai Corp., Meiji Seika Kaisa, Ltd.
    Inventors: Tomio Takeuchi, Masayuki Igarashi, Hiroshi Naganawa, Masa Hamada
  • Patent number: 6767533
    Abstract: A composition containing a peripheral benzodiazepine receptor ligand for topical use in the treatment of cutaneous stress.
    Type: Grant
    Filed: May 14, 2001
    Date of Patent: July 27, 2004
    Assignee: Sanofi-Synthelabo
    Inventors: Pierre Casellas, Jean-Marie Derocq
  • Patent number: 6696412
    Abstract: The invention discloses highly purified daptomycin and to pharmaceutical compositions comprising this compound. The invention discloses a method of purifying daptomycin comprising the sequential steps of anion exchange chromatography, hydrophobic interaction chromatography and anion exchange chromatography. The invention also discloses a method of purifying daptomycin by modified buffer enhanced anion exchange chromatography. The invention also discloses an improved method for producing daptomycin by fermentation of Streptomyces roseosporus. The invention also discloses high pressure liquid chromatography methods for analysis of daptomycin purity. The invention also discloses lipopeptide micelles and methods of making the micelles. The invention also discloses methods of using lipopeptide micelles for purifying lipopeptide antibiotics, such as daptomycin. The invention also discloses using lipopeptide micelles therapeutically.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: February 24, 2004
    Assignee: Cubist Pharmaceuticals, Inc.
    Inventors: Thomas J. Kelleher, Jan-Ji Lai, Joseph P. DeCourcey, Paul Lynch, Maurizio Zenoni, Auro Tagliani
  • Patent number: 6664100
    Abstract: A method for converting organic solid waste into humic products and the corresponding apparatus, in which a preliminary aerobic fermentation of the organic solid waste is performed, followed by a second aerobic fermentation of the organic waste in the presence of specific microorganisms in order to provide a basic precursor on which the selective metabolization occurs of specific bacterial strains to provide the humic product.
    Type: Grant
    Filed: February 25, 1999
    Date of Patent: December 16, 2003
    Inventor: Riccardo Reverso
  • Patent number: 6638503
    Abstract: The present invention relates to a novel microorganism Streptomyces megasporus SD5. The present invention also relates to a process for the isolation of said Streptomyces megasporus SD5. The invention also relates to a novel fibrinolytic enzyme actinokinase extracted from said microorganism and to a process for the extraction of said enzyme. In another aspect, the invention also pertains to a method for the treatment of thrombolytic disorders using said enzyme.
    Type: Grant
    Filed: November 28, 2001
    Date of Patent: October 28, 2003
    Assignee: Maharashtra Association for the Cultivation of Science
    Inventors: Ratnakar Ravindra Chitte, Sabita Dey
  • Patent number: 6566106
    Abstract: A process for the isolation of clavulanic acid and pharmaceutically acceptable salts thereof, such as potassium clavulanate, from the aqueous fermentation broth of a clavulanic acid-producing microorganism comprises the microfiltration of the broth without prior treatment.
    Type: Grant
    Filed: January 3, 2001
    Date of Patent: May 20, 2003
    Assignee: Lek Pharmaceutical & Chemical Co., d.d.
    Inventor: Egidij Capuder
  • Patent number: 6524577
    Abstract: A novel antibiotic-producing Streptomyces sp. is provided that exhibits antifungal activity only on certain specific plant pathogens. Also provided is a method of treating or protecting plants from fungal infections comprising applying an effective amount of an antibiotic-producing Streptomyces sp. having all the identifying characteristics of NRRL Accession number B-30145. The invention also relates to fungicidal compositions comprising this novel Streptomyces strain and the antibiotics and metabolites produced by this strain either alone, or in combination with other chemical and biological pesticides.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: February 25, 2003
    Assignee: AgraQuest, Inc.
    Inventors: Lori Jo Lehman, Randy Jay McCoy, Cai-yao Yuan, Denise Carol Manker, Jimmy Ensio Orjala, Pamela Gail Marrone
  • Publication number: 20030031741
    Abstract: A novel antibiotic-producing Streptomyces sp. is provided that exhibits antifungal activity only on certain specific plant pathogens. Also provided is a method of treating or protecting plants from fungal infections comprising applying an effective amount of an antibiotic-producing Streptomyces sp. having all the identifying characteristics of NRRL Accession number B-30145. The invention also relates to fungicidal compositions comprising this novel Streptomyces strain and the antibiotics and metabolites produced by this strain either alone, or in combination with other chemical and biological pesticides.
    Type: Application
    Filed: September 27, 2001
    Publication date: February 13, 2003
    Inventors: Lori Jo Lehman, Randy Jay McCoy, Caiyao Yuan, Denise Carol Manker, Jimmy Ensio Orjala, Pamela Gail Marrone, Jorge Isaac Jimenez Santamaria
  • Patent number: 6509184
    Abstract: A process for production of an alkaline tolerant dextranase enzyme comprises culturing a dextran-producing microorganism Streptomyces anulatus having accession no. ATCC PTA-3866 to produce an alkaline tolerant dextranase, Dex 1 wherein the protein in said enzyme is characterized by a MW of 63.3 kDa and Dex 2 wherein its protein is characterized by a MW of 81.8 kDa.
    Type: Grant
    Filed: August 24, 1999
    Date of Patent: January 21, 2003
    Assignee: Midwest Research Institute
    Inventors: Stephen R. Decker, William S. Adney, Todd B. Vinzant, Michael E. Himmel
  • Patent number: 6465203
    Abstract: The present invention provides methods of making paper, utilizing glucans, produced by the glucosyltransferase B, C or D enzyme of the species Streptococcus mutans, instead of modified starches. The present glucans are functionally similar to currently utilized modified starches and are particularly useful in the coating step of paper manufacture. The present glucans also exhibit thermoplastic properties and impart gloss to the paper during the coating step.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: October 15, 2002
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventor: Scott E. Nichols
  • Patent number: 6455270
    Abstract: Lichen-derived organic acids such as vulpinic acid and usnic acid have been found to be effective inhibitors of eukaryotic protein kinase activity. Thus, eukaryotic protein kinase activity present in a sample or organism can be inhibited by adding to the sample or organism an effective inhibitory amount of a lichen-derived organic acid.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: September 24, 2002
    Assignee: TerraGen Discovery Inc.
    Inventors: Julian E. Davies, Barbara Waters, Geeta Saxena
  • Patent number: 6432688
    Abstract: A purified amino alcohol dehydrogenase which reductively converts a keto alcohol into an amino alcohol and oxidatively converts an amino alcohol into a keto alcohol is disclosed. The enzyme is NAD(H) dependent, has a molecular weight of 100,000 Da when determined by gel filtration, has a optimum temperature of about 30° C. in reductive amination, an optimum pH of 10.0 in an oxidative deamination and of 7.0 in a reductive amination and can be isolated from Steptomyces virginiae.
    Type: Grant
    Filed: January 18, 2000
    Date of Patent: August 13, 2002
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Nobuya Ito, Akinobu Matsuyama, Yoshinori Kobayashi
  • Patent number: 6297043
    Abstract: The present invention relates to a compound named Mumbaistatin, its pharmaceutically acceptable salts and derivatives, a process for its production, and its use as a pharmaceutical. Mumbaistatin is obtainable by cultivation of the microorganism HIL-008003 (DSM 11641). Mumbaistatin is a glucose-6-phosphate translocase inhibitor and can be used in the treatment of diabetes mellitus. The present invention further relates to a process for the production of Mumbaistatin, to the microorganism HIL-008003 (DSM 11641), to the use of Mumbaistatin and its pharmaceutically acceptable salts and derivatives as pharmaceuticals, in particular to their use in the treatment of diabetes mellitus, and to pharmaceutical compositions comprising Mumbaistatin or a pharmaceutically acceptable salt or derivative thereof.
    Type: Grant
    Filed: June 23, 1999
    Date of Patent: October 2, 2001
    Assignee: Aventis Pharma Deutschland GmbH
    Inventors: Nirogi Venkata Satya Ramakrishna, Keshavapura Hosamane Sreedhara Swamy, Erra Koteswara Satya Vijaya Kumar, Manoj Maniram Singh Kushwaha, Sridevi Kota, Mythili Raman, Swati Dhananjay Tare, Sunil Kumar Deshmukh, Dietmar Schummer, Michael Kurz, Herbert Kogler
  • Patent number: 6284479
    Abstract: The present invention provides methods of making paper, utilizing glucans, produced by the glucosyltransferase B, C or D enzyme of the species Streptococcus mutans, instead of modified starches. The present glucans are functionally similar to currently utilized modified starches and are particularly useful in the coating step of paper manufacture. The present glucans also exhibit thermoplastic properties and impart gloss to the paper during the coating step.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: September 4, 2001
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventor: Scott E. Nichols
  • Patent number: 6280719
    Abstract: The present invention relates to antifungal biocontrol agents which enhance plant growth and reduce plant diseases by suppressing fungal pathogens, and the manufacturing and application methods thereof. The antifungal biocontrol agents of the present invention consist of one of the newly isolated strains of Streptomyces sp. WYE 20 (KCTC 0341BP) and WYE 324 (KCTC 0342BP) and a delivery medium which canies and stabilizes the cells. In particular, WYE 20 and WYE 324 of the present invention exhibit strong antifungal activity against Rhizoctonia solani and Phytophthora capsici and can be used in various ways to reduce fungal diseases in plants such as cucumber (Cucumis sativus L.), pepper (Capsicum annuum L.), and golf course turfgrasses.
    Type: Grant
    Filed: February 24, 1999
    Date of Patent: August 28, 2001
    Inventor: Hyung-Won Suh
  • Patent number: 6235506
    Abstract: Improved methods for the preparation of clavams by fermentation of a clavam-producing organism in a suitable medium wherein the ammonium levels are kept low so as to avoid repression of enzymes, particularly urease, are disclosed.
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: May 22, 2001
    Assignee: SmithKline Beecham, p.l.c.
    Inventors: Brian Peter Valentine, Paul Alan Jeffkins, William Henry Holms, David Michael Mousdale
  • Patent number: 6207428
    Abstract: A process for the isolation of clavulanic acid and pharmaceutically acceptable salts thereof, such as potassium clavulanate, from the aqueous fermentation broth of a clavulanic acid-producing microorganism comprises the microfiltration of the broth without prior treatment.
    Type: Grant
    Filed: October 8, 1999
    Date of Patent: March 27, 2001
    Assignee: Lek Pharmaceutical & Chemical Co. d.d.
    Inventor: Egidij Capuder
  • Patent number: 6132984
    Abstract: Lichen-derived organic acids such as vulpinic acid and usnic acid have been found to be effective inhibitors of eukaryotic protein kinase activity. Thus, eukaryotic protein kinase activity present in a sample or organism can be inhibited by adding to the sample or organism an effective inhibitory amount of a lichen-derived organic acid.
    Type: Grant
    Filed: October 16, 1998
    Date of Patent: October 17, 2000
    Assignee: TerraGen Discovery Inc.
    Inventors: Julian E. Davies, Barbara Waters, Geeta Saxena
  • Patent number: 6110726
    Abstract: One or more identified biologically pure strains of Actinomycete isolated from ATCC 55984 and methods of using the strains. The strains are used to confer protection against plant pathogen infection in a susceptible plant and are also used to enhance growth in a responsive plant. The methods of use include contacting at least a plant part, soil or soil-less potting mixture with a composition that includes at least one of the identified strains of Actinomycetes.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: August 29, 2000
    Inventor: Mark A. Roberts
  • Patent number: 6103504
    Abstract: This invention relates to Streptomyces avermitilis lacking branched-chain amino acid transaminase activity, branched-chain 2-oxo acid biosynthetic activity and, optionally and preferably, avermectin B-O-methyl transferase activity, methods for preparation thereof, and use thereof to produce natural and non-natural avermectins from branched-chain fatty acid or branched-chain 2-oxo acid precursors. Such avermectins are useful as parasiticides.
    Type: Grant
    Filed: March 25, 1992
    Date of Patent: August 15, 2000
    Assignee: Pfizer Inc.
    Inventor: Edmund W. Hafner
  • Patent number: 6100052
    Abstract: A batch fermentation is carried out continuously or semicontinuously using strain of Streptomyces clavuligerus for the production of clavulanic acid. The fermentation process is carried out with strict control of the soluble phosphate in the medium both at the beginning and throughout the process.
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: August 8, 2000
    Assignee: Antibioticos, S.A.
    Inventors: Carmelita Rodriguez Otero, Miguel Angel Moreno Valle, Manuel Jesus Lopez Nieto, Alfonso Juan Collados De La Vieja, Alejandro Vitaller Alba
  • Patent number: 6074638
    Abstract: The present invention is directed to methods and compositions for biological control of plant diseases using suppressive avirulent strains of Streptomyces spp. to control disease on a vegetable or other susceptible crop. The method includes applying one or more naturally occurring, suppressive avirulent strains of Streptonmces spp. to the crop to inhibit the growth of Streptomyces scabies or other plant pathogenic organisms that cause scab, wilt, or seedling blight disease. Preferably, at least two suppressive avirulent strains of Streptomyces spp. are applied to reduce the change of resistance from occurring. The suppressive avirulent strains ame compatible and will grow in the presence of one another and, when combined with the pathogenic organism, at least one of the suppressive avirulent strains preferably substantially outgrows the pathogen.
    Type: Grant
    Filed: May 6, 1996
    Date of Patent: June 13, 2000
    Assignee: Regents of the University of Minnesota
    Inventors: Neil A. Anderson, Daqun Liu, Linda L. Kinkel, Janet L. Schottel
  • Patent number: 6066492
    Abstract: A microorganism belonging to the genus Staphylococcus or the genus Streptomyces which is capable of degrading a polylactic acid resin. A method of degrading a polylactic acid resin including a step of culturing a microorganism capable of degrading a polylactic acid resin in a medium containing a polylactic acid resin. In particular, the microorganisms Streptomyces violaceusniger FERM BP-6110 and Streptomyces cyaneus FERM BP-6111 are used.
    Type: Grant
    Filed: January 20, 1999
    Date of Patent: May 23, 2000
    Assignees: Director-General of Agency of Industrial Science and Technology, Shimadzu Corp.
    Inventors: Yutaka Tokiwa, Hiroyuki Jikuya, Naoko Nagai
  • Patent number: 6043064
    Abstract: An enzymatic hydroxylation process for the preparation of compounds useful as HMG-CoA reductase inhibitors and/or as intermediates in the preparation of HMG-CoA reductase inhibitors uses a microorganism or an enzyme derived from, or having the structure of an enzyme derived from, said microorganism, which is capable of catalyzing the hydroxylation process.
    Type: Grant
    Filed: October 22, 1993
    Date of Patent: March 28, 2000
    Assignee: Bristol-Myers Squibb Company
    Inventors: Brian L. Davis, Paul M. Cino, Laszlo Szarka
  • Patent number: 5985625
    Abstract: A process for the isolation of clavulanic acid pharmaceutically acceptable salts thereof, such as potassium clavulanate, from the aqueous fermentation broth of a clavulanic acid-producing microogranism comprises the microfiltration of the broth without prior treatment.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: November 16, 1999
    Assignee: Lek Pharmaceutical & Chemical Co. dd
    Inventor: Egidij Capuder
  • Patent number: 5985624
    Abstract: Improved methods for the preparation of clavams by fermentation of a clavam-producing organism in a suitable medium wherein the ammonium levels are kept low so as to avoid repression of enzymes, particularly urease, are disclosed.
    Type: Grant
    Filed: August 26, 1997
    Date of Patent: November 16, 1999
    Assignee: SmithKline Beecham p.l.c.
    Inventors: Brian Peter Valentine, Paul Alan Jeffkins, William Henry Holms, David Michael Mousdale
  • Patent number: 5976855
    Abstract: The present invention relates to a method of preparing a variant of a parent lipolytic enzyme, comprising (a) subjecting a DNA sequence encoding the parent lipolytic enzyme to random mutagenesis, (b) expressing the mutated DNA sequence obtained in step (a) in a host cell, and (c) screening for host cells expressing a mutated lipolytic enzyme which has a decreased dependance to calcium and/or an improved tolerance towards a detergent or a detergent component as compared to the parent lipolytic enzyme.
    Type: Grant
    Filed: August 22, 1996
    Date of Patent: November 2, 1999
    Assignee: Novo Nordisk A/S
    Inventors: Allan Svendsen, Ib Groth Clausen, Jens Sigurd Okkels, Marianne Thellersen
  • Patent number: 5965445
    Abstract: An acidic polycyclic ether antibiotic, having structure established by X-ray crystallography, is formed by fermentation of a novel microorganism, Streptomyces sp. ATCC 55028. This novel antibiotic is useful as an anticoccidial in chickens, in the prevention or treatment of swine dysentery, as a growth promotant in cattle and swine, and as an anthelmintic in mammals, particularly in dogs, cats, sheep, cattle and swine.
    Type: Grant
    Filed: March 11, 1992
    Date of Patent: October 12, 1999
    Assignee: Pfizer Inc.
    Inventors: Walter P. Cullen, John P. Dirlam, Hiroshi Maeda, Junsuke Tone
  • Patent number: 5965604
    Abstract: The present invention relates to chrolactomycin compound represented by the following formula (I): ##STR1## or pharmaceutically acceptable salts thereof having antibacterial and antitumor activities.
    Type: Grant
    Filed: December 17, 1998
    Date of Patent: October 12, 1999
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Yoshinori Yamashita, Ryuichiro Nakai, Tamio Mizukami, Shingo Kakita, Shigeru Chiba, Shiro Akinaga
  • Patent number: 5939399
    Abstract: Novel polyene antibiotics, 3874 H1 to H6, processes for their preparation and use which are suitable for treating fungal diseases, trichomonad diseases, and for treating diseases associated with an increased steroid concentration.
    Type: Grant
    Filed: August 19, 1997
    Date of Patent: August 17, 1999
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Laszlo Vertesy, Michael Kurz, Joachim Wink, Astrid Markus, Wilhelm Stahl
  • Patent number: 5919672
    Abstract: A process for the microbiological or enzymatic hydrolytic resolution of racemic trans-2-(alkoxycarbonylethyl) lactams of the formula I: ##STR1## wherein R is C.sub.1 -C.sub.7 alkyl, 2,2,2-trifluoroethyl or methoxyethoxyethyl and R.sup.1 is hydrogen or a protecting group is disclosed, whereby an optically enriched compound of the formula Ib or IIa: ##STR2## is obtained.
    Type: Grant
    Filed: October 2, 1998
    Date of Patent: July 6, 1999
    Assignee: Schering Corporation
    Inventors: Michael J. Homann, William Brian Morgan
  • Patent number: 5905034
    Abstract: A process for separating a natural B avermectin from a natural avermectin containing fermentation broth by using an aqueous precipitation. The process comprises extracting natural avermectins from the fermentation broth with a water miscible solvent and adding sufficient water to precipitate the natural B avermetins. Preferably, the water miscible solvent is a C.sub.1 -C.sub.3 alcohol, acetone, or acetonitrile. In addition, an acid, base, salt or surfactant may be added to facilitate the precipitation. This invention provides an isolation technique that substitutes the use of an aqueous precipitation for nonaqueous solvent precipitations. The reduction in use of nonaqueous solvents provides economic, environmental and safety benefits.
    Type: Grant
    Filed: July 10, 1997
    Date of Patent: May 18, 1999
    Assignee: Pfizer Inc.
    Inventor: Abdullah R. Ali
  • Patent number: 5834301
    Abstract: A method of removing color from wood pulp is disclosed. The method comprises the steps of preparing a wood pulp, treating the wood pulp with the xylanase wherein the xylanase is capable of releasing chromophores from the pulp and extracting the wood pulp to remove chromophores. Also disclosed are substantially purified preparations of xylanase enzymes from bacterial isolates.
    Type: Grant
    Filed: December 18, 1995
    Date of Patent: November 10, 1998
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Thomas W. Jeffries, Anthony C. Grabski, Rajesh N. Patel, Graziano Elegir, George Szakacs
  • Patent number: 5792622
    Abstract: A microbiological assay for chemicals, which uses a cell and a reducing dye to quantitatively measure inhibition of electron transport in the cell membrane as a function of chemicals in the substance being tested, is disclosed. This assay and method is reliable, simple, fast, and inexpensive, requires a minimum amount of durable equipment, and avoids the need for the use of live animals as the indicator organisms. The assay is particularly useful for testing for toxicity in food products, environmental, medical and industrial processes, sewage treatment, effluent, agricultural wastes, and chemical dumps.
    Type: Grant
    Filed: November 16, 1995
    Date of Patent: August 11, 1998
    Assignee: New Mexico State University Technology Transfer Corporation
    Inventor: James L. Botsford