摘要:
A nucleotide sequence is provided which encodes a peptide having &bgr;-xylosidase activity and exhibits at least 30% amino acid identity with the amino acid sequence shown in SEQ ID NO. 1 and described in SEQ ID NO. 3 or hybridises under stringent conditions with a nucleotide sequence shown in SEQ ID NO. 1, or a part thereof having at least 15 nucleotides encoding an amino acid sequence shown in SEQ ID NO. 1 and described in SEQ ID NO. 3. Also provided is a peptide having &bgr;-xylosidase activity and exhibiting at least 30% amino acid identity with the amino acid sequence shown in SEQ ID NO. 1 and described in SEQ ID NO. 3 or a part thereof having at least 8 amino acids shown in SEQ ID NO. 1 and described in SEQ ID NO. 3.
摘要翻译:提供了编码具有β-木糖苷酶活性的肽并与SEQ ID NO:1所示的氨基酸序列呈现至少30%氨基酸同一性的核苷酸序列。 1并描述于SEQ ID NO。 3或在严格条件下与SEQ ID NO:1所示的核苷酸序列杂交。 1或其部分具有编码SEQ ID NO:1所示氨基酸序列的至少15个核苷酸。 1并描述于SEQ ID NO: 还提供了具有β-木糖苷酶活性的肽,并且与SEQ ID NO:1所示的氨基酸序列呈现至少30%的氨基酸同一性。 1并描述于SEQ ID NO: 3或其部分具有SEQ ID NO:1所示的至少8个氨基酸。 1并描述于SEQ ID NO: 3。
摘要:
The present invention relates to a method to improve the secretion of a protein of interest by a filamentous fungal cell comprising inducing a phenotype in the cell selected from the group consisting of a lowered ERAD, an elevated UPR that does not induce an elevated ERAD, wherein ERAD preferably is lowered. The invention further relates to the filamentous fungal cell comprising the phenotype described above. The invention also relates to polynucleotides and polypeptides whose expression can be modulated in the filamentous fungal cell to obtain the above-described phenotype.
摘要:
The present invention relates to methods of optimization of a protein coding sequences for expression in a given host cell. The methods apply genetic algorithms to optimise single codon fitness and/or codon pair fitness sequences coding for a predetermined amino acid sequence. In the algorithm generation of new sequence variants and subsequent selection of fitter variants is reiterated until the variant coding sequences reach a minimum value for single codon fitness and/or codon pair fitness. The invention also relates to a computer comprising a processor and memory, the processor being arranged to read from and write into the memory, the memory comprising data and instructions arranged to provide the processor with the capacity to perform the genetic algorithms for optimization of single codon fitness and/or codon pair fitness. The invention further relates to nucleic acids comprising a coding sequence for a predetermined amino acid sequence, the coding sequence being optimised with respect to single codon fitness and/or codon pair fitness for a given host in the methods of the invention, to host cells comprising such nucleic acids and to methods for producing polypeptides and other fermentation products in which these host cells are used.
摘要:
The present invention relates to a method to improve the secretion of a protein of interest by a filamentous fungal cell comprising inducing a phenotype in the cell selected from the group consisting of a lowered ERAD, an elevated UPR that does not induce an elevated ERAD, wherein ERAD preferably is lowered. The invention further relates to the filamentous fungal cell comprising the phenotype described above. The invention also relates to polynucleotides and polypeptides whose expression can be modulated in the filamentous fungal cell to obtain the above-described phenotype.
摘要:
The present invention relates to methods of optimization of a protein coding sequences for expression in a given host cell. The methods apply genetic algorithms to optimise single codon fitness and/or codon pair fitness sequences coding for a predetermined amino acid sequence. In the algorithm generation of new sequence variants and subsequent selection of fitter variants is reiterated until the variant coding sequences reach a minimum value for single codon fitness and/or codon pair fitness. The invention also relates to a computer comprising a processor and memory, the processor being arranged to read from and write into the memory, the memory comprising data and instructions arranged to provide the processor with the capacity to perform the genetic algorithms for optimisation of single codon fitness and/or codon pair fitness. The invention further relates to nucleic acids comprising a coding sequence for a predetermined amino acid sequence, the coding sequence being optimised with respect to single codon fitness and/or codon pair fitness for a given host in the methods of the invention, to host cells comprising such nucleic acids and to methods for producing polypeptides and other fermentation products in which these host cells are used.
摘要:
The present invention relates to isolated fungal promoter DNA sequences, to DNA constructs, vectors, and fungal host cells comprising these promoters in operative association with coding sequences encoding polypeptides. The present invention also relates to methods for expressing a gene and/or producing a polypeptide using the new promoters isolated. The present invention also relates to methods for altering the transcription level and/or regulation of an endogenous gene using the new promoter of the invention.
摘要:
The invention relates to a nucleotide sequence comprising; a synonymous nucleotide coding sequence with optimized codon frequency such that a native codon has been exchanged with a synonymous codon, the synonymous codon encoding the same amino acid as the native codon and having a higher frequency in codon usage as defined in Table 1 than the native codon; and optionally the nucleotide sequence comprises control sequences such as; one translational termination sequence orientated in 5′ towards 3′ direction selected from the following list of sequences; TAAG, TAGA and TAAA, preferably TAAA, and/or one translational initiator coding sequence orientated in 5′ towards 3′ direction selected from the following list of sequences; gctnccyyc (SEQ ID NO:20), using ambiguity codes for nucleotides; v (A/C/G); n (A/C/G/T), preferably 5′-GCT TCC TTC-3′ (SEQ ID NO:21). The invention further relates to a consensus translational initiator sequence; 5′-mwChkyCAmv-3′ (SEQ ID NO:16), preferably the translational initiator sequence is selected from the list consisting of; 5′-mwChkyCAAA-3′ (SEQ ID NO:17), 5′-mwChkyCACA-3′ (SEQ ID NO:18), and 5′-mwChkyCAAG-3′ (SEQ ID NO:19).
摘要翻译:本发明涉及一种核苷酸序列,其包含: 具有优化密码子频率的同义核苷酸编码序列,使得本地密码子已经与同义密码子交换,同义密码子编码与天然密码子相同的氨基酸,并且在表1中定义的密码子使用中的频率高于天然 密码子 并且任选地,所述核苷酸序列包含控制序列,例如 一个位于5'朝向3'方向的平移终止序列,从下列序列列表中选择; TAAG,TAGA和TAAA,优选TAAA,和/或以5'朝向3'方向取向的一个翻译启动子编码序列,其选自以下序列列表; gctnccyyc(SEQ ID NO:20),使用核苷酸的模糊码; v(A / C / G); n(A / C / G / T),优选5'-GCT TCC TTC-3'(SEQ ID NO:21)。 本发明还涉及一致的翻译起始序列; 5'-mwChkyCAmv-3'(SEQ ID NO:16),优选地,翻译起始子序列选自: 5'-mwChkyCAAA-3'(SEQ ID NO:17),5'-mwChkyCACA-3'(SEQ ID NO:18)和5'-mwChkyCAAG-3'(SEQ ID NO:19)。
摘要:
We describe a recombinant host cell for the production of a compound of interest as well as isolated fungal promoter DNA sequences, to DNA constructs, vectors, and fungal host cells comprising these promoters in operative association with coding sequences encoding a compound of interest. We also describe methods for expressing a gene of interest and/or producing compounds of interest using a promoter according to the invention.
摘要:
The present invention relates to newly identified genes that encode proteins that are involved in the (bio)synthesis of citric acid. The invention also features polynucleotides comprising the full-length polynucleotide sequences of the novel genes and fragments thereof, the novel polypeptides encoded by the polynucleotides and fragments thereof, as well as their functional equivalents. The present invention also relates to the use of said polynucleotides and polypeptides as biotechnological tools in the production of citric acid from microorganisms, whereby a modification of said polynucleotides and/or encoded polypeptides has a direct or indirect impact on yield, production, and/or efficiency of production of the fermentation product in said microorganism. Also included are methods/processes of using the polynucleotides and modified polynucleotide sequences to transform host microorganisms. The invention also relates to genetically engineered microorganisms and their use for production of citric acid.
摘要:
The present invention relates to isolated fungal promoter DNA sequences, to DNA constructs, vectors, and fungal host cells comprising these promoters in operative association with coding sequences encoding polypeptides. The present invention also relates to methods for expressing a gene and/or producing a polypeptide using the new promoters isolated. The present invention also relates to methods for altering the transcription level and/or regulation of an endogenous gene using the new promoter of the invention.