摘要:
The present invention relates to a recombinantly produced, enzymatically active hyaluronan synthase, wherein the recombinantly produced, enzymatically active hyaluronan synthase is a single protein that is a dual-action catalyst that utilizes UDP-GlcA and UDP-GlcNAc to synthesize HA. The recombinantly produced, enzymatically active hyaluronan synthase may be produced from a hyaluronan synthase gene isolated from a microbial source, such as a streptococcal source.
摘要:
The present invention relates to a recombinantly produced, enzymatically active hyaluronan synthase, wherein the recombinantly produced, enzymatically active hyaluronan synthase is a single protein that is a dual-action catalyst that utilizes UDP-GlcA and UDP-GlcNAc to synthesize HA. The recombinantly produced, enzymatically active hyaluronan synthase may be produced from a hyaluronan synthase gene isolated from a microbial source, such as a streptococcal source.
摘要:
The present invention relates to a nucleic acid segment having a coding region segment encoding enzymatically active Streptococcus equisimilis hyaluronate synthase (seHAS), and to the use of this nucleic acid segment in the preparation of recombinant cells which produce hyaluronate synthase and its hyaluronic acid product. Hyaluronate is also known as hyaluronic acid or hyaluronan.
摘要:
The present invention relates to a nucleic acid segment having a coding region segment encoding enzymatically active hyaluronate synthase (HAS), and to the use of this nucleic acid segment in the preparation of recombinant cells which produce hyaluronate synthase and its hyaluronic acid product. Hyaluronate is also known as hyaluronic acid or hyaluronan.
摘要:
1. A compound of Formula (1) and salts thereof: wherein: A is a substituted phenyl group carrying a group of the formula —NR3R4 and an ortho group selected from sulpho, phosphonato and phosphinato; n is 0 or 1; L1 and L2 are each independently H, optionally substituted alkyl, optionally substituted cycloalkyl or optionally substituted aryl, or L1 and L2 together with the N atom to which they are attached form an optionally substituted 5- or 6-membered ring; R1 and R2 are each independently optionally substituted alkyl or optionally substituted alkoxy; and R3 and R4 are each independently H, optionally substituted alkyl, optionally substituted cycloalkyl or optionally substituted aryl, or R3 and R4 together with the nitrogen atom to which they are attached form an optionally substituted 5- or 6-membered ring; or R3 is H, optionally substituted alkyl, optionally substituted cycloalkyl or optionally substituted aryl and R4 is an acyl group. The use of these compounds in inks and the use of inks comprising these compounds in ink jet printing.
摘要翻译:1.式(1)的化合物及其盐:其中:A是带有-NR 3 R 4基团的取代苯基和选自磺基,膦酸酯和膦酰基的正基; n是 0或1; L 1和L 2各自独立地为H,任选取代的烷基,任选取代的环烷基或任选取代的芳基,或L 1和L 2与它们所连接的N原子一起 形成任选取代的5-或6-元环; R 1和R 2各自独立地是任选取代的烷基或任选取代的烷氧基; R 3和R 4各自独立地为H,任选取代的烷基,任选取代的环烷基或任选取代的芳基,或R 3和R 4与它们所连接的氮原子一起形成任选取代的 5-或6-元环; 或R 3为H,任选取代的烷基,任选取代的环烷基或任选取代的芳基,R 4为酰基。这些化合物在油墨中的应用以及在喷墨印刷中使用包含这些化合物的油墨。
摘要:
The present invention relates to modified enzymes with one or more amino acid residues from an enzyme being replaced by cysteine residues, where at least some of the cysteine residues are modified by replacing thiol hydrogen in the cysteine residue with a thiol side chain to form a modified enzyme, wherein the modified enzyme has high esterase and low amidase activity. Also, a method of producing the modified enzymes is provided. The present invention also relates to a method for using the modified enzymes in peptide synthesis.
摘要:
Novel .alpha.-amylase enzymes are disclosed in which one or more of residues corresponding to A210, H405 and T412 in Bacillus licheniformis are mutated. The disclosed .alpha.-amylase enzymes show altered or improved stability and/or activity profiles.
摘要:
A method is disclosed for the enzymatic degradation of polyester amides. The method involves mixing polyester amides with esterase or protease enzymes in aqueous solution.
摘要:
The present invention is directed toward efficient, high-yield processes for making ascorbic acid, 2-keto-L-gulonic acid, and esters of 2-keto-L-gulonic acid. The processes comprise reacting the appropriate starting materials with a hydrolase enzyme catalyst such as a protease, an esterase, a lipase or an amidase.
摘要:
A Bacillus licheniformis producing an antifungal principle active against a wide variety of plant pathogenic fungi has been isolated. The microorganism was obtained from the rhizosphere of perennial ryegrass (Lolium perenne L.). The type isolate, strain PR1-36a, is particularly antagonistic to filamentous fungi, including Rhizoctonia and Magnaporthe. The microorganism was shown to be effective as a biocontrol agent for control of Fusarium seedling blight in corn. The antifungal principle produced by the microorganism is diffusible and may be purified by acid precipitation of the culture fluid, followed by ethanol extraction. The antifungal principle is fungistatic against several diverse species of fungi, and shows particularly strong activity against filamentous fungi, many of which are serious plant pathogens. Methods are provided for producing and using antifungal strains of Bacillus licheniformis, and antifungal principles produced therefrom, in treatment of soils, planting media, seeds and plant parts for control of various fungal plant diseases.