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    • 11. 发明授权
    • Production of β-Lactam antibiotics
    • 生产&bgr - 内酰胺抗生素
    • US08293511B2
    • 2012-10-23
    • US12444108
    • 2007-10-02
    • Marcus HansRoelof Ary Lans BovenbergPaul KlaassenRémon BoerJan Metske Van Der Laan
    • Marcus HansRoelof Ary Lans BovenbergPaul KlaassenRémon BoerJan Metske Van Der Laan
    • C12N9/00C12P37/00
    • C12N9/0004
    • The present invention describes a process for the production of an N-α-amino-hydroxyphenylacetyl or an N-α-aminophenylacetyl β-lactam antibiotic comprising an IPNS-catalysed conversion of a precursor tripeptide hydroxyphenylglycyl-cysteinyl-valine (HpgCV) or phenylglycyl-cysteinyl-valine (PgCV), respectively, to the N-hydroxyphenylglycyl or the N-phenylglycyl β-lactam antibiotic, respectively. The tripeptide HpgCV or the tripeptide PgCV may further be prepared by contacting the amino acids hydroxyphenylglycine (Hpg) or phenylglycine (Pg), cystein (C) and valine (V) with a non-ribosomal peptide synthetase (NRPS) to effect formation of the tripeptide HpgCV or the tripeptide PgCV, the NRPS comprising a first module M1 specific for Hpg or Pg, a second module M2 specific for C and a third module M3 specific for V An IPNS is further provided having an improved activity in this conversion, as well as an NRPS catalysing the formation of the tripeptides. Also a host cell is provided capable of fermentatively producing β-lactam antibiotics with N-α-amino-hydroxyphenylacetyl or an N-α-aminophenylacetyl side chains.
    • 本发明描述了一种制备N-α-氨基 - 羟基苯基乙酰基或N-α-氨基苯基乙酰基 - 内酰胺抗生素的方法,其包括前体三肽羟基苯基甘氨酰 - 半胱氨酰 - 缬氨酸(HpgCV)或苯基甘氨酰 - 半胱氨酰缬氨酸(PgCV)分别转化为N-羟基苯基甘氨酰或N-苯基甘氨酰和β-内酰胺抗生素。 三肽HpgCV或三肽PgCV可以通过使氨基酸羟基苯基甘氨酸(Hpg)或苯基甘氨酸(Pg),半胱氨酸(C)和缬氨酸(V)与非核糖体肽合成酶(NRPS)接触来进一步制备,以形成 三肽HpgCV或三肽PgCV,NRPS包括特定于Hpg或Pg的第一模块M1,特定于C的第​​二模块M2和特定于V An IPNS的第三模块M3,还具有在该转换中具有改进的活性 作为催化三肽形成的NRPS。 还提供了能够用N-α-氨基 - 羟基苯基乙酰基或N-α-氨基苯乙酰侧链发酵生产β-内酰胺抗生素的宿主细胞。
    • 16. 发明授权
    • Bi-directional selection markers with improved activity
    • 具有改善活性的双向选择标记
    • US07951568B2
    • 2011-05-31
    • US12226282
    • 2007-04-12
    • Marco Alexander van den BergRoelof Ary Lans Bovenberg
    • Marco Alexander van den BergRoelof Ary Lans Bovenberg
    • C12N9/00C07H21/04
    • C12N9/80
    • The present invention discloses a polypeptide selected from the group consisting of: a polypeptide having an amino acid sequence according to SEQ ID NO 3, a polypeptide having an amino acid sequence according to SEQ ID NO 6, a polypeptide having an amino acid that is substantially homologous to the sequence of SEQ ID NO 3 and a polypeptide having an amino acid that is substantially homologous to the sequence of SEQ ID NO 6, the polypeptide displaying acetamidase activity and providing a reverse selection on fluoroacetamide with an efficiency of at least 95%, preferably at least 96%, more preferably at least 97%, more preferably at least 98%, more preferably at least 99%, most preferably 100%. The gene encoding the polypeptide of the invention is used as an efficient bi-directional selection marker in the construction of selection marker free strains, in particular for processes for the production of a compound of interest.
    • 本发明公开了一种选自以下的多肽:具有根据SEQ ID NO 3的氨基酸序列的多肽,具有根据SEQ ID NO 6的氨基酸序列的多肽,具有基本上 与SEQ ID NO 3的序列同源,以及具有与SEQ ID NO 6的序列基本同源的氨基酸的多肽,所述多肽显示乙酰胺酶活性,并提供效率至少为95%的氟代乙酰胺的反向选择, 优选至少96%,更优选至少97%,更优选至少98%,更优选至少99%,最优选100%。 编码本发明多肽的基因在构建选择标记免疫菌株时被用作有效的双向选择标记,特别是用于生产感兴趣的化合物的方法。
    • 17. 发明申请
    • Bi-Directional Selection Markers With Improved Activity
    • 双向选择标记具有改进的活动
    • US20090246826A1
    • 2009-10-01
    • US12226282
    • 2007-04-12
    • Marco Alexander van den BergRoelof Ary Lans Bovenberg
    • Marco Alexander van den BergRoelof Ary Lans Bovenberg
    • C12P1/00C12N9/00C07H21/04C12N1/15C12N15/74
    • C12N9/80
    • The present invention discloses a polypeptide selected from the group consisting of: a polypeptide having an amino acid sequence according to SEQ ID NO 3, a polypeptide having an amino acid sequence according to SEQ ID NO 6, a polypeptide having an amino acid that is substantially homologous to the sequence of SEQ ID NO 3 and a polypeptide having an amino acid that is substantially homologous to the sequence of SEQ ID NO 6, the polypeptide displaying acetamidase activity and providing a reverse selection on fluoroacetamide with an efficiency of at least 95%, preferably at least 96%, more preferably at least 97%, more preferably at least 98%, more preferably at least 99%, most preferably 100%. The gene encoding the polypeptide of the invention is used as an efficient bi-directional selection marker in the construction of selection marker free strains, in particular for processes for the production of a compound of interest.
    • 本发明公开了一种选自以下的多肽:具有根据SEQ ID NO 3的氨基酸序列的多肽,具有根据SEQ ID NO 6的氨基酸序列的多肽,具有基本上 与SEQ ID NO 3的序列同源,以及具有与SEQ ID NO 6的序列基本同源的氨基酸的多肽,所述多肽显示乙酰胺酶活性,并提供效率至少为95%的氟代乙酰胺的反向选择, 优选至少96%,更优选至少97%,更优选至少98%,更优选至少99%,最优选100%。 编码本发明多肽的基因在构建选择标记免疫菌株时被用作有效的双向选择标记,特别是用于生产感兴趣的化合物的方法。