194736-83-9Relevant articles and documents
Total synthesis and pharmacological investigation of cordyheptapeptide A
Kumar, Suresh,Dahiya, Rajiv,Khokra, Sukhbir Lal,Mourya, Rita,Chennupati, Suresh V.,Maharaj, Sandeep
, (2017)
The present investigation reports the synthesis of a phenylalanine-rich N-methylated cyclopeptide, cordyheptapeptide A (8), previously isolated from the insect pathogenic fungus Cordyceps sp. BCC 1788, accomplished through the coupling of N-methylated tetrapeptide and tripeptide fragments followed by cyclization of the linear heptapeptide unit. Structure elucidation of the newly synthesized cyclopolypeptide was performed by means of FT-IR, 1H-NMR, 13C-NMR, and fast atom bombardment mass spectrometry (FABMS), and screened for its antibacterial, antidermatophytic, and cytotoxic potential. According to the antimicrobial activity results, the newly synthesized N-Methylated cyclopeptide exhibited potent antibacterial activity against Gram-negative bacteria Pseudomonas aeruginosa and Klebsiella pneumoniae and antifungal activity against dermatophytes Trichophyton mentagrophytes and Microsporum audouinii at a concentration of 6μg/mL, in comparison to the reference drugs, gatifloxacin and griseofulvin. In addition, cyclopolypeptide 8 displayed suitable levels of cytotoxicity against Dalton's lymphoma ascites (DLA) and Ehrlich's ascites carcinoma (EAC) cell lines.
Identification of an Anti-MRSA Cyclic Lipodepsipeptide, WBP-29479A1, by Genome Mining of Lysobacter antibioticus
Sang, Moli,Wang, Haoxin,Shen, Yuemao,Rodrigues De Almeida, Nathalia,Conda-Sheridan, Martin,Li, Shanren,Li, Yaoyao,Du, Liangcheng
supporting information, p. 6432 - 6436 (2019/08/26)
Lysobacter are ubiquitous in the environment but remain largely underexplored, although the bacteria are considered "peptide specialists". Here, we identified a new cyclic lipodepsipeptide, WBP-29479A1 (1), through genome mining of L. antibioticus ATCC 29479. 1 is biosynthesized by a large NRPS gene cluster, and its structure, including the six nonproteinogenic residues and 3-hydroxy fatty acid, was determined by extensive spectroscopic analyses and chemical derivatization. 1 exhibits potent anti-MRSA activity in a menaquinone-dependent manner.
Eight linear peptides from the deep-sea-derived fungus Simplicillium obclavatum EIODSF 020
Liang, Xiao,Zhang, Xiao-Yong,Nong, Xu-Hua,Wang, Jie,Huang, Zhong-Hui,Qi, Shu-Hua
, p. 3092 - 3097 (2016/05/19)
Eight new linear peptides, simplicilliumtides A-H (1-8) were isolated from a culture broth of the deep-sea-derived fungal strain Simplicillium obclavatum EIODSF 020. Their structures were elucidated by spectroscopic analysis, and their absolute configurat