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首页> 外文期刊>Applied Microbiology and Biotechnology >Two novel cyclic hexapeptides from the genetically engineered Actinosynnema pretiosum
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Two novel cyclic hexapeptides from the genetically engineered Actinosynnema pretiosum

机译:两种新的循环六肽来自遗传工程化的actinosynnema pretosum

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摘要

Two novel cyclic hexapeptides designated actinosynneptides A (1) and B (2), together with three tryptophan containing diketopiperazines, namely cyclo(L-Trp-L-Trp) (3), cyclo(L-Trp-N-MeL-Trp) (4), and cyclo(N-MeL-Trp-N-MeL-Trp) (5), were isolated from the culture of the genetically engineered strain HGF052::asm18 derived from Actinosynnema pretiosum ATCC31565. Their structures were elucidated on the basis of spectroscopic analyses and single-crystal X-ray diffractions. Compound 1 is the first example of 3-amino-6-hydroxy-2-piperidone-containing cyclic peptides, and 1 and 2 showed moderate cytotoxic activities against HeLa and PC3 cell lines.
机译:指定肌动糖苷酸的两种新型环状己肽A(1)和B(2),以及含有二酮哌嗪的三种色氨酸,即环偶(L-TRP-L-TRP)(3),Cyclo(L-TRP-N-MEL-TRP) (4)和环瘤(N-MEL-TRP-N-MEL-TRP)(5)被分离出从遗传工程菌株HGF052 :: ASM18的培养物中分离出来自ACTINOSYNNEMA PROFISUM ATCC31565的ASM18。 在光谱分析和单晶X射线衍射的基础上阐明了它们的结构。 化合物1是含3-氨基-6-羟基-2-哌啶酮的环状肽的第一实例,1和2显示针对HeLa和PC3细胞系的中等细胞毒性活性。

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