COMPOSITIONS AND METHODS FOR INCREASED PROTEIN PRODUCTION IN BACILLUS LICHENFORMIS

    公开(公告)号:US20220282234A1

    公开(公告)日:2022-09-08

    申请号:US17635349

    申请日:2020-08-10

    申请人: DANISCO US INC.

    摘要: The present disclosure is generally related to compositions and methods for constructing and obtaining Bacillus licheniformis cells having increased protein production phenotypes. Thus, certain embodiments are related to modified B. licheniformis cells derived from parental B. licheniformis cells. Certain embodiments are related to modified B. licheniformis cells comprising a modified rghR locus. Certain embodiments are related to modified B. licheniformis cells having a modified rghR locus and comprising an increased protein productivity phenotype. In certain other embodiments, modified B. licheniformis cells having a modified rghR locus produce a reduced amount of red pigment. In certain other embodiments, modified B. licheniformis cells comprise an increased protein productivity phenotype and produce a reduced amount of red pigment.

    ENDOGLUCANASE VARIANTS WITH IMPROVED PROPERTIES

    公开(公告)号:US20220186203A1

    公开(公告)日:2022-06-16

    申请号:US17442724

    申请日:2020-03-23

    申请人: METGEN OY

    摘要: The present invention relates to endoglucanase variants with improved properties and uses thereof as eco-friendly biocatalysts in various industrial processes. More in particular the invention provides a polypeptide with endoglucanase activity (EC 3.2.1.4) comprising an amino acid sequence that is at least 90% identical to the amino acid sequence according to SEQ ID NO: 1 or SEQ ID NO: 2, wherein the polypeptide comprises an amino acid selected from the group consisting of Glycine, Threonine, Serine, Alanine, Leucine, Isoleucine and Valine at a position corresponding to position 579 in SEQ ID NO: 1 or SEQ ID NO: 2 or an amino acid selected from the group consisting of Serine, Alanine and Valine at a position corresponding to position 656 in SEQ ID NO: 1 or SEQ ID NO: 2.

    Enhanced protein expression and methods thereof

    公开(公告)号:US11306319B2

    公开(公告)日:2022-04-19

    申请号:US15771618

    申请日:2016-10-27

    申请人: DANISCO US INC

    摘要: The present disclosure is generally related to modified Gram positive bacterial cells producing increased amounts of one or more protein(s) of interest and modified Gram positive bacterial cells having increased genetic competency. Thus, certain embodiments of the disclosure are directed to modified Gram positive bacterial cells expressing an increased amount of a protein of interest, relative to an unmodified (parental) Gram positive bacterial cell expressing the same protein of interest, wherein the modified bacterial cell comprises at least one mutation in a rpoC gene encoding a variant RNA-polymerase (RNAP) β′-subunit polypeptide. In certain embodiments, the rpoC gene encoding the variant β′-subunit polypeptide is integrated into the chromosome of the modified cell. In other embodiments, the rpoC gene encoding the variant β′-subunit polypeptide is comprised on an extrachromosomal plasmid introduced into the modified cell. In other embodiments, the disclosure is directed to competent Bacillus host cells comprising at least one copy of a nucleic acid construct encoding a modified rpoC polypeptide comprising 90% sequence identity to SEQ ID NO: 8 and an aspartic acid to glycine substitution at position 796 of SEQ ID NO: 8, wherein the polynucleotide encoding the rpoC polypeptide is foreign to the Bacillus host cell that was non-competent prior to the introduction of the first nucleic acid construct.

    Direct transfer of polynucleotides between genomes

    公开(公告)号:US11130969B2

    公开(公告)日:2021-09-28

    申请号:US14897060

    申请日:2014-07-04

    申请人: Novozymes A/S

    IPC分类号: C12N15/90 C12N15/10 C12N15/75

    摘要: The present invention provides methods for directly transferring a recombinant polynucleotide of interest from the chromosome of a prokaryotic donor cell to the chromosome of a prokaryotic recipient cell of another species, wherein the polynucleotide of interest comprises at least one coding sequence of interest, preferably one gene of interest and a selectable marker, wherein said polynucleotide of interest in the chromosome of the donor cell is flanked on each side by a polynucleotide region derived from the chromosome of the recipient cell, and wherein the flanking polynucleotide regions are of sufficient size and sequence identity to allow double homologous recombination with the corresponding regions in the chromosome of the recipient cell.