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公开(公告)号:US08293511B2
公开(公告)日:2012-10-23
申请号:US12444108
申请日:2007-10-02
CPC分类号: C12N9/0004
摘要: 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.
摘要翻译: 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。
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公开(公告)号:US20100009404A1
公开(公告)日:2010-01-14
申请号:US12444108
申请日:2007-10-02
CPC分类号: C12N9/0004
摘要: 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.
摘要翻译: 本发明描述了制备N-α-氨基 - 羟基苯基乙酰基或N-α-氨基苯基乙酰基β-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)分别分别与N-羟基苯基甘氨酰或N-苯基甘氨酰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。
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