Stellettapeptins A and B, HIV-inhibitory cyclic depsipeptides from the marine sponge Stelletta sp.

Stellettapeptins A and B, HIV-inhibitory cyclic depsipeptides from the marine sponge Stelletta sp.
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DOI:
10.1016/j.tetlet.2015.05.058
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发表时间:
2015-07-08
影响因子:
1.8
通讯作者:
Gustafson KR
Gustafson KR
中科院分区:
化学4区
文献类型:
--
作者:
Shin HJ;Rashid MA;Cartner LK;Bokesch HR;Wilson JA;McMahon JB;Gustafson KR

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从海绵Stelletta sp.的提取物中分离到两种新的HIV抑制缩肽,星状肽A(1)和B(2),产于澳大利亚西北部。这些环状非核糖体肽的结构被阐明的基础上,广泛的NMR数据分析,化学降解和衍生化研究。星状肽含有许多非蛋白质氨基酸残基,并且它们是第一个报道含有3-羟基-6,8-二甲基壬-4-(Z)-烯酸部分的肽。化合物1和2有效抑制HIV-1 RF对人T淋巴母细胞的感染,EC 50值分别为23和27 nM。
Two new HIV-inhibitory depsipeptides, stellettapeptins A (1) and B (2), were isolated from an extract of the marine sponge Stelletta sp., collected from northwestern Australia. Structures of these cyclic nonribosomal peptides were elucidated on the basis of extensive NMR data analysis, and chemical degradation and derivatization studies. Stellettapeptins contain numerous nonproteinogenic amino acid residues and they are the first peptides reported to contain a 3-hydroxy-6,8-dimethylnon-4-(Z)-enoic acid moiety. Compounds 1 and 2 potently inhibit infection of human T-lymphoblastoid cells by HIV-1RF with EC50 values of 23 and 27 nM, respectively.
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发表时间: 2007-11-01
影响因子: 5.1
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