摘要:
At least one isolated microorganism and a fermentation method to convert hydrogen gas, carbon dioxide gas, and/or carbon monoxide gas to a lower alkyl alcohol and/or carboxylic acid and to produce at least 2% by volume of the lower alkyl alcohol or carboxylic acid in an aqueous-based medium.
摘要:
This invention relates to metabolically engineered microorganism strains, such as bacterial strains, in which there is an increased utilization of malonyl-CoA for production of a chemical product, which includes 3- hydroxypropionic acid.
摘要:
알코올 생산 공정에서 발생되는 발효 폐기물을 포함하는 배양배지를 준비하는 단계; 상기 배양배지에 제1 미생물을 접종하는 단계; 상기 제1 미생물이 접종된 배양배지를 배양하는 단계를 포함하는 바이오 연료물질 및 바이오 화학물질의 제조 방법, 및 5탄당 및 6탄당 혼합물로부터 6탄당을 발효시켜 에탄올 발효액을 생성하는 단계; 상기 에탄올 발효액을 분리·정제하는 단계; 상기 분리·정제 단계에서 생성된 발효 폐기물을 포함하는 배양 배지를 준비하는 단계; 상기 배양배지에 제1 미생물을 접종하는 단계; 및 상기 제1 미생물이 접종된 배양배지를 배양하는 단계를 포함하는 바이오 연료물질 및 바이오 화학물질의 제조 방법이 개시되어 있다.
摘要:
The disclosure relates to engineered enone reductase polypeptides having improved properties, polynucleotides encoding the engineered polypeptides, related vectors, host cells, and methods for making the engineered enone reductase polypeptides. The disclosure also provides methods of using the engineered enone reductase polypeptides for chemical transformations.
摘要:
A fermentation process for the production of organic acids is provided and includes, providing metabolically engineered mutant bacteria which have had one or both of ack and pta genes disrupted, adapting the mutant bacteria to increase their resistance to acids and to increase their growth rate by immobilizing the mutant bacteria while exposing the mutant bacteria to a fermentable substrate, and further exposing the adapted mutant bacteria to a fermentable substrate for a time sufficient to provide a final organic acid fermentation product concentration of greater than about 50 g/L.
摘要:
Die vorliegende Erfindung betrifft eine isolierte DNA, welche ausgewählt ist aus den folgenden Sequenzen: a) eine Sequenz nach SEQ.-ID-Nr.01, b) eine intronfreie Sequenz, die von einer Sequenz nach a) abgeleitet ist und das gleiche Protein oder Peptid kodiert wie die Sequenz nach SEQ.-ID-Nr.01, c) eine Sequenz, die ein Protein oder Peptid kodiert, das die Aminosäure-Sequenznach SEQ.-ID-Nr.02 umfasst, d) eine Sequenz, die mit einer Sequenz nach a) bis c) zu mindestens 80% identisch ist, e) eine Sequenz, die mit dem Gegenstrang einer Sequenz nach einer der Gruppen a) bis d) hybridisiert oder unter Berücksichtigung der Degeneration des genetischen Codes hybridisieren würde, f) ein durch Substitution, Addition, Inversion und/oder Deletion einer oder mehrerer Basen erhaltenes Derivat einer Sequenz nach einer der Gruppen a) bis e), g) eine Sequenz, die der SEQ.-ID-Nr.01 innerhalb der Degeneration des genetischen Codes entspricht, h) eine Sequenz mit neutralen Sinnmutationen der SEQ.- ID-Nr.01, sowie i) eine komplementäre Sequenz zu einer Sequenz nach einer der Gruppen a) bis h). Die Erfindung betrifft weiterhin einen Vektor, die Verwendung dieses Vektors zur Transformation einer Zelle, eine transformierte Zelle, ein Polypeptid, gegenüber ihrem Wildtyp gentechnisch veränderte Zellen, ein Verfahren zur Herstellung einer gentechnisch veränderten Zelle, die durch diese Verfahren erhältliche gentechnisch veränderte Zelle, die Verwendung dieser Zelle sowie ein Verfahren zur Herstellung von 3-Hydroxyisobuttersäure oder eines Derivates davon.
摘要翻译:本发明涉及一种分离的DNA,它是从下列序列选自:a)根据SEQ ID号01的序列,b)在由序列根据衍生的无内含子的序列)和同一蛋白或 肽根据SEQ ID 01号编码为序列,c)编码包含氨基酸Sequenznach SEQ ID 02期,d)用的序列的蛋白质或肽的序列 根据a)至c序列)中,e)为至少80%相同,将根据组a)至d)杂交的一个杂交或与序列的反链的序列,考虑到遗传密码的由简并性,F)一 得到的取代,添加,倒位和/或缺失的一个或多个碱基衍生物的序列的根据对应于SEQ ID 01号的序列遗传密码的简并性内的组a)到e)中的一个,克), 1H)具有SEQ ID的中性有义突变的序列 01期,以及i)根据组a)至h)中的一个的序列互补的序列。 本发明还涉及一种载体,使用该载体的一个细胞,转化的细胞,多肽,与它的野生型,遗传修饰的细胞,用于生产转基因细胞的方法,获得通过该方法遗传修饰的细胞,使用比较的转化 此细胞和用于制备3-羟基异丁酸或其衍生物的方法。
摘要:
The present invention relates to a method for the enzymatic production of 2-hydroxy-2-methyl carboxylic acids from 3-hydroxy carboxylic acids, where a 3-hydroxy carboxylic acid is produced in an aqueous reaction solution and/or is added to this reaction solution and is incubated. The aqueous reaction solution comprises a unit having 3-hydroxy-carboxylate-CoA mutase activity which has both 3-hydroxy-carbonyl-CoA ester-producing and 3-hydroxy-carbonyl-CoA ester-isomerizing activity and converts the 3-hydroxy carboxylic acid into the corresponding 2-hydroxy-2-methyl carboxylic acid which is isolated as acid or in the form of its salts. In a preferred embodiment, the unit having 3-hydroxy-carboxylate-CoA mutase activity is a unit which includes an isolated cobalamin-dependent mutase and where appropriate a 3-hydroxy-carbonyl-CoA ester-producing enzyme or enzyme system or a microorganism including them. The invention preferably relates to a biotechnological process for producing 2-hydroxy-2-methyl carboxylic acids, where microorganisms which have the desired activities are cultured in an aqueous system with the aid of simple natural products and convert intracellularly formed 3-hydroxy-carbonyl-CoA esters into the corresponding 2-hydroxy-2-methyl carboxylic acids. The invention likewise encompasses the production of unsaturated 2-methyl carboxylic acids, where the 2-hydroxy-2-methyl carboxylic acids obtained are converted by dehydration into the corresponding unsaturated 2-methyl carboxylic acids (methacrylic acid and higher homologues).
摘要:
Production of fermentation products, such as ethanol and lactic acid in biofilm reactors by microorganisms immobilised on sterilised granular sludge.
摘要:
The present invention relates to 25 hitherto undescribed genes of B. licheniformis and gene products derived therefrom and all sufficiently homologous nucleic acids and proteins thereof. They occur in five different metabolic pathways for the formation of odorous substances. The metabolic pathways in question are for the synthesis of: 1) isovalerian acid (as part of the catabolism of leucine), 2) 2-methylbutyric acid and/or isobutyric acid (as part of the catabolism of valine and/or isoleucine), 3) butanol and/or butyric acid (as part of the metabolism of butyric acid), 4) propyl acid (as part of the metabolism of propionate) and/or 5) cadaverine and/or putrescine (as parts of the catabolism of lysine and/or arginine). The identification of these genes allows biotechnological production methods to be developed that are improved to the extent that, to assist these nucleic acids, the formation of the odorous substances synthesised via these metabolic pathways can be reduced by deactivating the corresponding genes in the micro-organism used for the biotechnological production. In addition, these gene products are thus available for preparing reactions or for methods according to their respective biochemical properties.