当前位置: X-MOL 学术RSC Med. Chem. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Crystallomycin revisited after 60 years: aspartocins B and C†
RSC Medicinal Chemistry ( IF 4.1 ) Pub Date : 2018-02-27 00:00:00 , DOI: 10.1039/c8md00002f
Anton P Tyurin 1, 2 , Vera A Alferova 1 , Alexander S Paramonov 2 , Maxim V Shuvalov 1, 3 , Irina A Malanicheva 1 , Natalia E Grammatikova 1 , Pavel N Solyev 4 , Shaowei Liu 5 , Chenghang Sun 5 , Igor A Prokhorenko 1, 2 , Tatyana A Efimenko 1 , Larisa P Terekhova 1 , Olga V Efremenkova 1 , Zakhar O Shenkarev 2, 6 , Vladimir A Korshun 1, 2
Affiliation  

The study of an archived sample of crystallomycin complex using HPLC, ESI HRMS, and 2D NMR showed that two major components of the antibiotic, compounds 1 and 2, are lipopeptides having the same peptide core, Asp1-cyclo(Dab2-Pip3-MeAsp4-Asp5-Gly6-Asp7-Gly8-Dab9-Val10-Pro11-), N-acylated either with Δ3-iso-tetradecenoyl or Δ3-anteiso-pentadecenoyl that are identical to aspartocins C and B, respectively. According to the 2D NMR study, compound 2 in DMSO solution exists as a mixture of four conformers. The producing strain was identified as Streptomyces griseorubens. Compounds 1 and 2 have considerable Ca2+-dependent activity against Gram-positive bacteria including five MRSA strains.

中文翻译:


60 年后重新审视结晶霉素:天冬氨酸 B 和 C†



使用 HPLC、ESI HRMS 和 2D NMR 对结晶霉素复合物存档样品的研究表明,抗生素的两种主要成分化合物12是具有相同肽核心 Asp1-cyclo(Dab2-Pip3-MeAsp4-) 的脂肽。 Asp5-Gly6-Asp7-Gly8-Dab9-Val10-Pro11-),用 Δ 3 -异十四烯酰基或 Δ 3 -反异十五烯酰基进行N酰化,分别与天冬氨酸 C 和 B 相同。根据 2D NMR 研究,DMSO 溶液中的化合物2以四种构象异构体的混合物形式存在。生产菌株被鉴定为Streptomyces griseorubens 。化合物12对革兰氏阳性菌(包括五种 MRSA 菌株)具有相当大的 Ca 2+依赖性活性。
更新日期:2018-02-27
down
wechat
bug