platencin SL6 (1S,2R)-2-phenyl-1-cyclohexanyl ester | 1410799-05-1

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: platencin SL6 (1S,2R)-2-phenyl-1-cyclohexanyl ester
• 英文别名: [(1S,2R)-2-phenylcyclohexyl] (2R)-2-methyl-5-[(1S,5S,6R,8S)-5-methyl-9-methylidene-4-oxo-5-tricyclo[6.2.2.01,6]dodec-2-enyl]pentanoate
• CAS: 1410799-05-1
• 化学式: C₃₂H₄₂O₃
• 分子量: 474.684
• InChiKey: VWBOEWZPTDUKPP-VCTZARKLSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7.8
• 重原子数：
  35
• 可旋转键数：
  8
• 环数：
  6.0
• sp3杂化的碳原子比例：
  0.62
• 拓扑面积：
  43.4
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  platencin SL6 、 (1S,2R)-(+)-反-2-苯基-1-环己醇 在 4-二甲氨基吡啶 、 盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 作用下， 以 二氯甲烷 为溶剂， 反应 16.5h， 生成 platencin SL6 (1S,2R)-2-phenyl-1-cyclohexanyl ester
  参考文献：
  名称：

  Expression of the Platencin Biosynthetic Gene Cluster in Heterologous Hosts Yielding New Platencin Congeners

  摘要：

  Platensimycin (PTM) and platencin (PTN) are potent and selective inhibitors of bacterial and mammalian fatty acid synthases and have emerged as promising drug leads for both antibacterial and antidiabetic therapies. We have previously cloned and sequenced the PTM PTN dual biosynthetic gene cluster from Streptomyces platensis MA7327 and the PTN biosynthetic gene cluster from S. platensis MA7339, the latter of which is composed of 31 genes encoding PTN biosynthesis, regulation, and resistance. We have also demonstrated that PTM or PTN production can be significantly improved upon inactivation of the pathway-specific regulator ptmR1 or ptnR1 in S. platensis MA7327 or MA7339, respectively. We now report engineered production of PTN and congeners in a heterologous Streptomyces host. Expression constructs containing the ptn biosynthetic gene cluster were engineered from SuperCos 1 library clones and introduced into five model Streptomyces hosts, and PTN production was achieved in Streptomyces lividans K4-114. Inactivation of ptnR1 was crucial for expression of the ptn biosynthetic gene cluster, thereby PTN production, in S. lividans K4-114. Six PTN congeners, five of which were new, were also isolated from the recombinant strain S. lividans SB12606, revealing new insights into PTN biosynthesis. Production of PTN in a model Streptomyces host provides new opportunities to apply combinatorial biosynthetic strategies to the PTN biosynthetic machinery for structural diversity.

  DOI：

  10.1021/np3005985

文献信息

• Expression of the Platencin Biosynthetic Gene Cluster in Heterologous Hosts Yielding New Platencin Congeners
  作者：Michael J. Smanski、Jeffrey Casper、Ryan M. Peterson、Zhiguo Yu、Scott R. Rajski、Ben Shen

  DOI：10.1021/np3005985

  日期：2012.12.28

  Platensimycin (PTM) and platencin (PTN) are potent and selective inhibitors of bacterial and mammalian fatty acid synthases and have emerged as promising drug leads for both antibacterial and antidiabetic therapies. We have previously cloned and sequenced the PTM PTN dual biosynthetic gene cluster from Streptomyces platensis MA7327 and the PTN biosynthetic gene cluster from S. platensis MA7339, the latter of which is composed of 31 genes encoding PTN biosynthesis, regulation, and resistance. We have also demonstrated that PTM or PTN production can be significantly improved upon inactivation of the pathway-specific regulator ptmR1 or ptnR1 in S. platensis MA7327 or MA7339, respectively. We now report engineered production of PTN and congeners in a heterologous Streptomyces host. Expression constructs containing the ptn biosynthetic gene cluster were engineered from SuperCos 1 library clones and introduced into five model Streptomyces hosts, and PTN production was achieved in Streptomyces lividans K4-114. Inactivation of ptnR1 was crucial for expression of the ptn biosynthetic gene cluster, thereby PTN production, in S. lividans K4-114. Six PTN congeners, five of which were new, were also isolated from the recombinant strain S. lividans SB12606, revealing new insights into PTN biosynthesis. Production of PTN in a model Streptomyces host provides new opportunities to apply combinatorial biosynthetic strategies to the PTN biosynthetic machinery for structural diversity.