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    • 9. 发明申请
    • PRODUCTION OF BETA-LACTAM ANTIBIOTICS
    • 生产β-LACTAM抗生素
    • US20100009404A1
    • 2010-01-14
    • 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
    • C12P37/00C12N9/00C12N15/52C12N1/21C12P35/00
    • 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。