RussianPatents.com
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Controlled degradation of structured polyribonucleotides. RU patent 2458986. |
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FIELD: chemistry. SUBSTANCE: structured polyribonucleotides undergo degradation through incubation of a sample containing them with thermally stable polynucleotide phosphorylase (PNPhase) Thermus thermophilus in the presence of a co-substrate and a cofactor. EFFECT: invention enables to conduct enzymatic phosphorolysis of RNA at high temperature. 7 cl, 20 dwg
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Method for production of pancreatic ribonuclease / 2388821 Method provides for grinding of pancreas. Ground pancreas is treated with solution of sodium chloride of 4.5-6 wt % in the following volume ratio between pancreas and salt solution equal to 1:(1.5-2.0) at the temperature of 25-35°C for 2.5-3.5 hours. Produced cells of pancreas are separated by centrifugation and treated with 95% ethyl alcohol for 15-24 hours in volume ratio of 1:(0.85-1.3) at the temperature of 15-25°C. Pancreas cells are separated by centrifugation with further treatment of these cells with water acidified with hydrochloric acid to pH of 1.0-3.0 for 2.5-4.5 hours at the temperature of 25-35°C in volume ratio of 1:(0.8:1.2). Produced cells of pancreas are separated by centrifugation to produce supernatant. Ribonuclease is extracted from produced supernatant by solutions of sulfuric acid with concentration of 0.15-0.35 for 3-4 hours with volume ratio of 1:(0.8-1.2) at the temperature of 4-6°C. Suspended particles are separated by centrifugation to produce extract that contains ribonuclease. Produced extract is concentrated by ultrafiltration on UPM 10 membrane with further diafiltration. Produced concentrate is cooled down to 4-6°C, and ribonuclease is deposited at pH of 8.0-9.0. Produced residue is washed with ethyl alcohol in volume ratio of 1:5 and dried. |
Streptomycin-resistant strain bacillus sp arcim b-9862, producer of extracellular alkaline ribonuclease / 2384619 Strain Bacillus sp. ARCIM B-9862 is a high-stable producer of alkaline extracellular ribonuclease with high resistance to streptomycin; it is deposited in the All-Russian Collection of Industrial Microorganisms (ARCIM), Federal State Unitary Enterprise State Research Institute for Genetics, number B-9862. |
Method of preparing cholesterol-esterase, tripsin, deoxyribonuclease, and ribonuclease from bovine pancreas / 2311455 Invention aims at biotechnological preparation of following medicaments: pancreatic ribonuclease, pancreatic deoxyribonuclease, tripsin, and cholesterolesterase. Method envisages grinding bovine pancreas and homogenation thereof. Resulting homogenate is extracted with cooled ethanol at constant stirring, centrifuged, and subjected to second extraction, now with sulfuric acid containing magnesium sulfate, at constant stirring. Extract containing desired enzymes is separated from precipitate via centrifugation. Ballast proteins are precipitated by ammonium sulfate at 30-35% saturation and removed from supernatant via centrifugation. Cholesterolesterase is precipitated by ammonium sulfate at 45-50% saturation of extract, tripsin at 60-65% saturation, and DNA-ase at 95-98% saturation followed by dialysis and chromatographic purification on DEAE-cellulose column. |
Oligonucleotide-peptide conjugate with ability to cleave rna phosphodiester bonds in 5'gpn3' sequences / 2305108 Disclosed is oligonucleotide-peptide conjugate of general formula 3'TTCTCTAGG5'-dRib-dRib-dRib-N-terminal-Leu-Arg-Leu-Arg-Leu-Arg-Arg-Gly-NH2-C-terminal (wherein T is thymine residue; C is cytosine residue; A is adenosine residue; G is guanosine residue; drib is deoxyribose residue; Leu is leucine residue; Arg is arginine residue; Gly is glycine residue). Said conjugate cleaves phosphodiester bonds in single-stranded RNA sites in 5'GpN3' (wherein G is guanosine; N is any ribonucleotide) sequences only. |
Oligonucleotide-peptide conjugate with ability to cleave rna phosphodiester bonds in 5'gpn3' sequences / 2305108 Disclosed is oligonucleotide-peptide conjugate of general formula 3'TTCTCTAGG5'-dRib-dRib-dRib-N-terminal-Leu-Arg-Leu-Arg-Leu-Arg-Arg-Gly-NH2-C-terminal (wherein T is thymine residue; C is cytosine residue; A is adenosine residue; G is guanosine residue; drib is deoxyribose residue; Leu is leucine residue; Arg is arginine residue; Gly is glycine residue). Said conjugate cleaves phosphodiester bonds in single-stranded RNA sites in 5'GpN3' (wherein G is guanosine; N is any ribonucleotide) sequences only. |
Method of preparing cholesterol-esterase, tripsin, deoxyribonuclease, and ribonuclease from bovine pancreas / 2311455 Invention aims at biotechnological preparation of following medicaments: pancreatic ribonuclease, pancreatic deoxyribonuclease, tripsin, and cholesterolesterase. Method envisages grinding bovine pancreas and homogenation thereof. Resulting homogenate is extracted with cooled ethanol at constant stirring, centrifuged, and subjected to second extraction, now with sulfuric acid containing magnesium sulfate, at constant stirring. Extract containing desired enzymes is separated from precipitate via centrifugation. Ballast proteins are precipitated by ammonium sulfate at 30-35% saturation and removed from supernatant via centrifugation. Cholesterolesterase is precipitated by ammonium sulfate at 45-50% saturation of extract, tripsin at 60-65% saturation, and DNA-ase at 95-98% saturation followed by dialysis and chromatographic purification on DEAE-cellulose column. |
Streptomycin-resistant strain bacillus sp arcim b-9862, producer of extracellular alkaline ribonuclease / 2384619 Strain Bacillus sp. ARCIM B-9862 is a high-stable producer of alkaline extracellular ribonuclease with high resistance to streptomycin; it is deposited in the All-Russian Collection of Industrial Microorganisms (ARCIM), Federal State Unitary Enterprise State Research Institute for Genetics, number B-9862. |
Method for production of pancreatic ribonuclease / 2388821 Method provides for grinding of pancreas. Ground pancreas is treated with solution of sodium chloride of 4.5-6 wt % in the following volume ratio between pancreas and salt solution equal to 1:(1.5-2.0) at the temperature of 25-35°C for 2.5-3.5 hours. Produced cells of pancreas are separated by centrifugation and treated with 95% ethyl alcohol for 15-24 hours in volume ratio of 1:(0.85-1.3) at the temperature of 15-25°C. Pancreas cells are separated by centrifugation with further treatment of these cells with water acidified with hydrochloric acid to pH of 1.0-3.0 for 2.5-4.5 hours at the temperature of 25-35°C in volume ratio of 1:(0.8:1.2). Produced cells of pancreas are separated by centrifugation to produce supernatant. Ribonuclease is extracted from produced supernatant by solutions of sulfuric acid with concentration of 0.15-0.35 for 3-4 hours with volume ratio of 1:(0.8-1.2) at the temperature of 4-6°C. Suspended particles are separated by centrifugation to produce extract that contains ribonuclease. Produced extract is concentrated by ultrafiltration on UPM 10 membrane with further diafiltration. Produced concentrate is cooled down to 4-6°C, and ribonuclease is deposited at pH of 8.0-9.0. Produced residue is washed with ethyl alcohol in volume ratio of 1:5 and dried. |
Controlled degradation of structured polyribonucleotides / 2458986 Structured polyribonucleotides undergo degradation through incubation of a sample containing them with thermally stable polynucleotide phosphorylase (PNPhase) Thermus thermophilus in the presence of a co-substrate and a cofactor. |
Structure based on protein pair of barnase-barstar and method of its production / 2480524 Method is proposed to develop the specified structure, which includes: a) development of at least two modules, where each module is independently made in the form of a nucleus that carries molecules of the first protein and the second protein on the surface, where the first protein is barnase, and the second protein is barstar, besides, the first or second protein for binding with each module is selected in the following manner: the first module is made as carrying protein molecules on its surface selected from the first protein or the second protein; the second module is performed as carrying protein molecules on the surface selected from the first protein or the second protein and different from the protein contained in the first module; the third and each subsequent module carries molecules of either the first or the second protein on the surface; b) combination of the first, second and subsequent modules, in which modules are self-assembled in the structure due to interaction of the molecules of barnase and barstart, besides, nuclei of at least two of the specified modules are made with particles of supermolecular nature. The structure is described for diagnostics and therapy produced by the specified method. |
Aeromonas bestiarum bacteria strain - producer of alkaline ribonuclease having antiviral activity / 2520086 Invention proposes Aeromonas bestiarum bacteria strain - producer of alkaline ribonuclease having antiviral activity and deposited in a collection of bacteria, bacteriophages and fungi of the Federal Budgetary Scientific Institution "The State Scientific Centre of Virology and Biotechnology "Vector" with registration No. B-1270. Strain has high production rate of alkaline ribonuclease - 921.8 U/ml and activity against A/H5N1 bird and A/Aichi/2/68 (H3N2) human being flu viruses. |
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