C12R2001/40

Methods for preparing N-acetyl-L-methionine

The present disclosure relates to a polypeptide having an acyltransferase activity or a microorganism including the same; a composition for preparing N-acetyl-L-methionine, the composition including the polypeptide or microorganism; and a method of preparing N-acetyl-L-methionine using the polypeptide or microorganism. Further, the present disclosure relates to a polynucleotide encoding the polypeptide and an expression vector including the polynucleotide. Since the microorganism including a novel acyltransferase according to the present disclosure has enhanced acyltransferase activity, this microorganism can be efficiently used for producing N-acetyl-L-methionine by acetylating L-methionine.

PATHWAY INTEGRATION AND EXPRESSION IN HOST CELLS

Provided herein are methods for integrating a gene of interest into a chromosome of a host cell. In some embodiments, the methods include introducing into a host cell a first plasmid comprising a transposase coding sequence and a donor sequence, which includes a selectable marker coding sequence flanked by a first and a second lox site and is itself flanked by inverted repeats recognized by the transposase. Following transposase-mediated chromosomal integration of the donor sequence into the host cell, a second plasmid is introduced, which comprises the gene of interest and a second selectable marker coding sequence, both flanked by a first and a second lox site. The gene of interest is chromosomally integrated into the host cell by recombinase-mediated cassette exchange (RMCE) between the donor sequence and the second plasmid via Cre-/cuc recombination. Further provided herein are host cells, vectors, and methods of producing a product related thereto.

IN VIVO FLUORINATION

The present invention relates to a cell capable of producing a fluorinated, a chlorinated or a brominated compound, methods for producing fluorinated, chlorinated or brominated compounds in a cell and expression systems therefor.

METHOD FOR PRODUCING AMINOBENZOIC ACID OR AN AMINOBENZOIC ACID DERIVATIVE

The invention relates to a method for producing aminobenzoic acid or a aminobenzoic acid derivative via the fermentation of a suitable raw material under the influence of suitable microorganisms and obtaining a fermentation broth containing aminobenzoate and/or aminobenzoic acid. In particular, the invention relates to the step of obtaining the aminobenzoic acid from the fermentation broth, wherein the crystallisation of aminobenzoic acid is carried out via a simple one-stage acid treatment in the presence of seed crystals. The aminobenzoic acid crystallised in this simple manner can be easily separated from the mother liquor, further cleaned if necessary, and then supplied to the different applications.

INSECTICIDAL PROTEINS AND METHODS FOR THEIR USE

Compositions and methods for controlling pests are provided. The methods involve transforming organisms with a nucleic acid sequence encoding an insecticidal protein. In particular, the nucleic acid sequences are useful for preparing plants and microorganisms that possess insecticidal activity. Thus, transformed bacteria, plants, plant cells, plant tissues and seeds are provided. Compositions are insecticidal nucleic acids and proteins of bacterial species. The sequences find use in the construction of expression vectors for subsequent transformation into organisms of interest including plants, as probes for the isolation of other homologous (or partially homologous) genes. The pesticidal proteins find use in controlling, inhibiting growth or killing Lepidopteran, Coleopteran, Dipteran, fungal, Hemipteran and nematode pest populations and for producing compositions with insecticidal activity.

Conversion of lignin to muconic acid and methods therefor

Described herein is a chemical process for the conversion of lignocellulosic biomass into muconic acid which is useful for the generation of plastics and polymers. The described methods utilize catalytic chemical reactions and biological processes to facilitate the conversion, while increasing yields and reducing energy requirements.

AUTOXIDATION CATALYSIS FOR CARBON CARBON BOND CLEAVAGE IN LIGNIN

Disclosed herein are methods and compositions of matter showing that catalytic autoxidation can be used to generate aromatic monomers from CC linked dimers and oligomers derived from lignin. This is demonstrated by acetylating phenol-rich RCF oil and then conducting aerobic oxidation of the oligomeric fraction of poplar RCF oil with a Co/Mn/Br catalyst mixture in acetic acid. This reaction yields a collection of oxygenated aromatic monomers that represent a 17% increase in monomer yield compared to the RCF process alone.

POLYNUCLEOTIDE AND EXPRESSION CASSETTE COMPRISING CODING SEQUENCE OF TOLUENE DIOXYGENASE, AND USE THEREOF
20240301369 · 2024-09-12 ·

The present disclosure relates to the field of bioengineering and pharmaceutical and chemical production. In particular, provided is a polynucleotide comprising a coding sequence of toluene dioxygenase. Also provided are an expression cassette, a vector and a host cell comprising the polynucleotide, as well as use thereof in the preparation of cis-cyclohexadiene o-diol compounds.

ANIMAL MODELS, SCREENING METHODS, AND TREATMENT METHODS FOR INTRAOCULAR DISEASES OR DISORDERS
20240298616 · 2024-09-12 ·

Provided herein are screening methods and animal models related to intraocular diseases such as age-related macular degeneration (AMD), for example, for identifying candidate therapeutics for treating or preventing eye diseases, such as AMD. Also provided herein are compounds/compositions that are useful for killing or inhibiting the growth of a microorganism, such as Bacillus megaterium. Further provided herein are methods of using the compounds/compositions for treating infections with a microorganism, such as Bacillus megaterium and for treating or preventing diseases or disorders associated with such infections, such as AMD.

METHODS FOR IMPROVING SODIUM SALT TOLERANCE

Disclosed herein are five genes that were identified and engineered into Pseudomonas putida KT2440 and P. putida CJ781 to improve tolerance to sodium salt (Na+).