摘要:
An isolated polypeptide containing an amino acid sequence at least 70% identical to a Tubby-like protein (SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, or 11), and an isolated nucleic acid encoding the polypeptide. Disclosed is an isolated nucleic acid that, under stringent conditions, hybridizes to a probe containing one of SEQ ID NOs:1-11; or its complementary sequence. Also disclosed are (1) a transformed cell or a transgenic plant containing such a nucleic acid and (2) a transformed cell or a transgenic plant having a reduced level(s) of one or more of the Tubby-like proteins. Also within the scope of the invention are methods for making the transformed cells or transgenic plants.
摘要翻译:一种分离的多肽,其含有与Tubby样蛋白质(SEQ ID NO:1,2,3,4,5,6,7,8,9,10或11)至少70%相同的氨基酸序列,以及 分离的编码多肽的核酸。 公开了一种分离的核酸,其在严格条件下与含有SEQ ID NO:1-11之一的探针杂交; 或其互补序列。 还公开了(1)含有这种核酸的转化细胞或转基因植物和(2)具有降低的一种或多种类似蛋白质的水平的转化细胞或转基因植物。 在本发明的范围内也是用于制备转化细胞或转基因植物的方法。
摘要:
The present invention features an isolated nucleic acid that includes a mutant DNA encoding a Candida rugosa lipase, wherein the mutant DNA is 80% identical to a wild-type DNA encoding the Candida rugosa lipase, and includes at least 12 (e.g., 13, 15, 17, or all) universal serine codons corresponding to CTG codons in the wild-type DNA. Each of the universal serine codons, independently, is TCT, TCC, TCA, TCG, AGT, or AGC. The Candida rugosa lipase can be Candida rugosa lipase 1, 2, 3, 4, 5, or 8.
摘要:
The present invention provides mutant-type lipases which demonstrate superior lipolytic and esterific activities. The mutant-type lipases are characterized by an amino acid alteration at the residue immediately followed either the serine residue or the histidine residue or both residues of the Ser-His-Asp catalytic triad. The Ser-His-Asp catalytic triad is known to be the three residues, although occur far apart in the amino acid sequence of a lipase, that contribute to the hydrolytic activity in the active site of the lipase. The amino acid residue that follows the serine residue of the Ser-His-Asp catalytic triad is alanine. The amino acid residue that follows the histidine residue of the Ser-His-Asp catalytic triad is isoleucine. The wild-type lipase is preferably originated from Staphylococcus, particularly Staphylococcus epidermindis. The present invention also relates to a method for preparing the mutant-type lipases by site-directed mutagenesis using PCR and a method for utilizing the mutant-type lipase to catalyze synthesis of flavor esters to be used in food industry.
摘要:
The present invention features an isolated nucleic acid that includes a mutant DNA encoding a Candida rugosa lipase, wherein the mutant DNA is 80% identical to a wild-type DNA encoding the Candida rugosa lipase, and includes at least 12 (e.g., 13, 15, 17, or all) universal serine codons corresponding to CTG codons in the wild-type DNA. Each of the universal serine codons, independently, is TCT, TCC, TCA, TCG, AGT, or AGC. The Candida rugosa lipase can be Candida rugosa lipase 1, 2, 3, 4, 5, or 8.
摘要:
An isolated polypeptide containing an amino acid sequence at least 70% identical to SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, or 11, and an isolated nucleic acid encoding the polypeptide. Disclosed is an isolated nucleic acid that, under stringent conditions, hybridizes to a probe containing one of SEQ ID NOs:1-11; or its complementary sequence. Also disclosed are (1) a transformed cell or a transgenic plant containing such a nucleic acid and (2) a transformed cell or a transgenic plant lacking one or more of SEQ ID NOs:1-11. Also within the scope of the invention are methods for making the transformed cells or transgenic plants.
摘要翻译:含有与SEQ ID NO:1,2,3,4,5,6,7,8,9,10或11至少70%相同的氨基酸序列的分离多肽和编码该多肽的分离的核酸。 公开了一种分离的核酸,其在严格条件下与含有SEQ ID NO:1-11之一的探针杂交; 或其互补序列。 还公开了(1)含有这种核酸的转化细胞或转基因植物和(2)缺失SEQ ID NO:1-11中的一个或多个的转化细胞或转基因植物。 在本发明的范围内也是用于制备转化细胞或转基因植物的方法。
摘要:
Disclosed herein are novel chitinase polypeptides and nucleic acids encoding the polypeptides. Also disclosed are related vectors, host cells, compositions, and uses.
摘要:
The present invention features an isolated nucleic acid that includes a mutant DNA encoding a Candida rugosa lipase, wherein the mutant DNA is 80% identical to a wild-type DNA encoding the Candida rugosa lipase, and includes at least 12 (e.g., 13, 15, 17, or all) universal serine codons corresponding to CTG codons in the wild-type DNA. Each of the universal serine codons, independently, is TCT, TCC, TCA, TCG, AGT, or AGC. The Candida rugosa lipase can be Candida rugosa lipase 1, 2, 3, 4, 5, or 8.
摘要:
The present invention relates to the isolation and functional identification of a novel acid and heat resistant trehalose synthase enzyme cloned from Picrophilus torridus. More particularly, the present invention discloses the DNA sequence for the Picrophilus torridus trehalose synthase gene, PTTS, which when expressed in a heterologous host such as Escherichia coli, provides enzymatic activity that catalyzes the direct interconversion of maltose and trehalose through intramolecular transglycosylation. Additionally, the present invention teaches methods of use of PTTS for production of trehalose as well as for production of various useful compounds comprising trehalose.
摘要:
An isolated polypeptide containing an amino acid sequence at least 70% identical to SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, or 11, and an isolated nucleic acid encoding the polypeptide are disclosed. Disclosed is an isolated nucleic acid that, under stringent conditions, hybridizes to a probe containing SEQ ID NO:20; or its complementary sequence. Also disclosed are (1) a transformed cell or a transgenic plant containing such a nucleic acid and (2) a transformed cell or a transgenic plant lacking the polypeptide encoded by the nucleic acid. Also within the scope of the invention are methods for making the transformed cells or transgenic plants.
摘要翻译:包含与SEQ ID NO:1,2,3,4,5,6,7,8,9,10或11至少70%相同的氨基酸序列的分离多肽和编码该多肽的分离的核酸是 披露 公开了一种分离的核酸,其在严格条件下与含有SEQ ID NO:20的探针杂交; 或其互补序列。 还公开了(1)含有这种核酸的转化细胞或转基因植物和(2)缺乏由核酸编码的多肽的转化细胞或转基因植物。 在本发明的范围内也是用于制备转化细胞或转基因植物的方法。
摘要:
A polyacetylenes and application thereof. The polyacetylenes is isolated from an extract of the sporophores of Antrodia Cinnamomea and has a function of inhibiting the production of nitric oxide. Therefore, the polyacetylenes can be used for preparing a pharmaceutical composition for anti-inflammation. The present invention also teaches the representative metabolites of the sporophores of Antrodia Cinnamomea, which can be used to evaluate the quality thereof.