The present invention relates to a method to improve the production of a secondary metabolite catalyzed by a non-ribosomal peptide synthetase comprising contacting in a eukaryotic host a eukaryotic non-ribosomal peptide synthetase with an MbtH-like protein. The present invention further relates to a composition comprising a eukaryotic non-ribosomal peptide synthetase that is not a hybrid and a prokaryotic MbtH and to a eukaryotic host cell comprising a non-ribosomal peptide synthetase and a polynucleotide allowing the expression of an MbtH-like protein.

The present disclosure provides nucleic acids encoding a Large ATP-binding regulator of the LuxR family (LAL) of transcription factors, vectors and host cells including such nucleic acids, and methods for producing compounds (e.g., polyketides or -lactam compounds) with such nucleic acids, vectors, and/or host cells.

The present disclosure provides nucleic acids encoding a Large ATP-binding regulator of the LuxR family (LAL) of transcription factors, vectors and host cells including such nucleic acids, and methods for producing compounds (e.g., polyketides or -lactam compounds) with such nucleic acids, vectors, and/or host cells.

Provided herein are penicillin expandase mutants, DNA coding the mutants, reagent kit containing the mutants and the application. The penicillin expandase mutants using SEQ ID NO.: 2 in the Sequence Listing as a reference sequence, have at least one amino acid mutation at residue positions corresponding to threonine at position 42 and glutamine at position 126, wherein, amino acid at position 42 is substituted by any other natural amino acid except threonine, amino acid at position 126 is substituted by any other natural amino acid except glutamine. The penicillin expandase mutants of present invention have increased its thermostability and catalytic activity; it is more suitable for commercial and industrial applications.

Provided herein are penicillin expandase mutants, DNA coding the mutants, reagent kit containing the mutants and the application. The penicillin expandase mutants using SEQ ID NO.: 2 in the Sequence Listing as a reference sequence, have at least one amino acid mutation at residue positions corresponding to threonine at position 42 and glutamine at position 126, wherein, amino acid at position 42 is substituted by any other natural amino acid except threonine, amino acid at position 126 is substituted by any other natural amino acid except glutamine. The penicillin expandase mutants of present invention have increased its thermostability and catalytic activity; it is more suitable for commercial and industrial applications.

The invention relates to a process for the preparation of a fermentation product from ligno-cellulosic material, comprising the following steps: a) optionally pre-treatment of the ligno-cellulosic material; b) optionally washing of the optionally pre-treated ligno-cellulosic material; c) enzymatic hydrolysis of the optionally washed and/or optionally pre-treated ligno-cellulosic material using an enzyme composition comprising at least two cellulase and whereby the enzyme composition at least comprises GH61; d) whereby less than 7.5 mg enzyme composition/g glucan (on dry matter and enzyme as protein) or less than 3.0 mg enzyme composition/g feedstock (on dry matter and enzyme as protein) is used; and e) fermentation of the hydrolysed ligno-cellulosic material to produce a fermentation product; and f) optionally recovery of a fermentation product;
wherein before and/or during the enzymatic hydrolysis oxygen is added to the ligno-cellulosic material.

The invention relates to a process for the preparation of a fermentation product from ligno-cellulosic material, comprising the following steps: a) optionally pre-treatment of the ligno-cellulosic material; b) optionally washing of the optionally pre-treated ligno-cellulosic material; c) enzymatic hydrolysis of the optionally washed and/or optionally pre-treated ligno-cellulosic material using an enzyme composition comprising at least two cellulase and whereby the enzyme composition at least comprises GH61; d) whereby less than 7.5 mg enzyme composition/g glucan (on dry matter and enzyme as protein) or less than 3.0 mg enzyme composition/g feedstock (on dry matter and enzyme as protein) is used; and e) fermentation of the hydrolysed ligno-cellulosic material to produce a fermentation product; and f) optionally recovery of a fermentation product;
wherein before and/or during the enzymatic hydrolysis oxygen is added to the ligno-cellulosic material.

The present invention relates to eukaryotic cells which have the ability to isomerise xylose directly into xylulose. The cells have acquired this ability by transformation with nucleotide sequences coding for a xylose isomerase that has one or more specific sequence elements typical for isomerases having the ability of functional expression in yeasts, such as e.g. xylose isomerases obtainable from a bacterium of the genera Clostridium and Fusobacterium or a tunicate form the genus Ciona. The cell preferably is a yeast or a filamentous fungus, more preferably a yeast is capable of anaerobic alcoholic fermentation.

The present invention relates to eukaryotic cells which have the ability to isomerise xylose directly into xylulose. The cells have acquired this ability by transformation with nucleotide sequences coding for a xylose isomerase that has one or more specific sequence elements typical for isomerases having the ability of functional expression in yeasts, such as e.g. xylose isomerases obtainable from a bacterium of the genera Clostridium and Fusobacterium or a tunicate form the genus Ciona. The cell preferably is a yeast or a filamentous fungus, more preferably a yeast is capable of anaerobic alcoholic fermentation.

The invention relates to a process for the preparation of a fermentation product from ligno-cellulosic material, comprising the following steps: a) optionally pre-treatment of the ligno-cellulosic material; b) optionally washing of the optionally pre-treated ligno-cellulosic material; c) enzymatic hydrolysis of the optionally washed and/or optionally pre-treated ligno-cellulosic material using an enzyme composition comprising at least two cellulase and whereby the enzyme composition at least comprises GH61; d) whereby less than 7.5 mg enzyme composition/g glucan (on dry matter and enzyme as protein) or less than 3.0 mg enzyme composition/g feedstock (on dry matter and enzyme as protein) is used; and e) fermentation of the hydrolyzed ligno-cellulosic material to produce a fermentation product; and f) optionally recovery of a fermentation product;
wherein before and/or during the enzymatic hydrolysis oxygen is added to the ligno-cellulosic material.