Synthetic analogues (3-5, 8-10) of neocarzinostatin chromophore (1) are found to bind to the apoprotein with high affinity. Their binding energies suggest that the naphthoate moiety of 1 is essential for the binding, and that the CS-CH3 and C7-OCH3 groups are necessary for the high affinity.
Dziewonski; Otto, Bulletin de l'Academie Polonaise des Sciences, Serie des Sciences Chimiques, 1935, vol. <A>, p. 208
作者:Dziewonski、Otto
DOI:——
日期:——
[EN] A POLYKETIDE SYNTHASE CONSTRUCT AND ITS USE IN THE PREPARATION OF POLYKETIDES<br/>[FR] CONSTRUCTION DE POLYCÉTIDE SYNTHASE ET SON UTILISATION DANS LA PRÉPARATION DE POLYCÉTIDES
申请人:UNIV NANYANG TECH
公开号:WO2013172782A1
公开(公告)日:2013-11-21
An isolated polypeptide derived from Saccharopolyspora erythraea having polyketide synthase activity and capable of producing mellein. An isolated nucleic acid molecule capable of expressing hte polyketide synthase. A method of making a biocatalyst polyketide synthase and its use in synthesizing polyketides.
Decarboxylative Fluorination of Arylcarboxylic Acids Promoted by <i>ortho</i>
-Hydroxy and Amino Groups
作者:Dinghai Wang、Zheliang Yuan、Qilun Liu、Pinhong Chen、Guosheng Liu
DOI:10.1002/cjoc.201800016
日期:2018.6
A novel decarboxylative fluorination process has been developed for the synthesis of ortho‐hydroxy/amino arylfluorides from salicylic acid analogs, in which the ortho‐hydroxy/amino group plays an important role in the transformation. In addition, various arylfluorides are obtained in good to excellent yields under mild conditions.
Characterization of NcsB2 as a Promiscuous Naphthoic Acid/Coenzyme A Ligase Integral to the Biosynthesis of the Enediyne Antitumor Antibiotic Neocarzinostatin
作者:Heather A. Cooke、Jian Zhang、Meghan A. Griffin、Koichi Nonaka、Steven G. Van Lanen、Ben Shen、Steven D. Bruner
DOI:10.1021/ja071886a
日期:2007.6.1
The enediyne antitumorantibioticneocarzinostatin (NCS) is produced by Streptomyces carzinostaticus ATCC15944. The biosynthetic pathway for the naphthoic acid moiety (boxed) of the NCSchromophore (1) is proposed to comprise five enzymes: NcsB, NcsB1, NcsB2, NcsB3, NcsB4. Both in vivo and in vitro experiments were used to support the proposed pathway. NcsB2 was characterized for the ability to catalyze