Identification and Biological Activity of NFAT-133 Congeners from Streptomyces pactum.
Identification and Biological Activity of NFAT-133 Congeners from Streptomyces pactum.
复制标题
棕榈链霉菌NFAT-133同源物的鉴定及生物活性研究
DOI:
10.1021/acs.jnatprod.1c00152
复制
发表时间:
2021-09-24
影响因子:
5.1
通讯作者:
Mahmud T
中科院分区:
文献类型:
--
作者:
Zhou W;Posri P;Liu XJ;Ju Z;Lan WJ;Mahmud T
The soil bacterium Streptomyces pactum ATCC 27456 produces a number of polyketide natural products. Among them is NFAT-133, an inhibitor of the nuclear factor of activated T cells (NFAT) that suppresses interleukin-2 (IL-2) expression and T cell proliferation. Biosynthetic gene inactivation in the ATCC 27456 strain revealed the ability of this strain to produce other polyketide compounds including analogues of NFAT-133. Consequently, seven new derivatives of NFAT-133, TM-129 – TM-135, together with a known compound, panowamycin A, were isolated from the culture broth of S. pactum ATCC 27456 ΔptmTDQ. Their chemical structures were elucidated on the basis of their HRESIMS, 1D and 2D NMR spectroscopy, and ECD calculation and spectral data. NFAT-133, TM-132, TM-135 and panowamycin A showed no antibacterial activity or cytotoxicity, but weakly reduced the production of LPS-induced nitric oxide (NO) in RAW264.7 cells in a dose-dependent manner. A revised chemical structure of panowamycin A and proposed modes of formation of the new NFAT-133 analogues are also presented.
登录
查看更多内容
影响因子:
3.3
作者:
Hashida, Junko;Niitsuma, Megumi;Omura, Satoshi
通讯作者:
Omura, Satoshi
影响因子:
--
作者:
Lu, Wanli;Roongsawang, Niran;Mahmud, Taifo
通讯作者:
Mahmud, Taifo
影响因子:
5.1
作者:
Fotso, Serge;Mahmud, Taifo;Proteau, Philip. J.
通讯作者:
Proteau, Philip. J.
DOI:
10.1128/aem.10.4.302-304.1962
发表时间:
1962-01-01
期刊:
APPLIED MICROBIOLOGY
影响因子:
--
作者:
BHUYAN, BK
通讯作者:
BHUYAN, BK
影响因子:
2.8
作者:
Rabuck, AD;Scuseria, GE
通讯作者:
Scuseria, GE