Lasso Peptides: An Intriguing Class of Bacterial Natural Products

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• 作者：Julian D. Hegemann ; Marcel Zimmermann ; Xiulan Xie ; Mohamed A. Marahiel
• 刊名：Accounts of Chemical Research
• 出版年：2015
• 出版时间：July 21, 2015
• 年：2015
• 卷：48
• 期：7
• 页码：1909-1919
• 全文大小：896K
• ISSN：1520-4898

文摘

Natural products of peptidic origin often represent a rich source of medically relevant compounds. The synthesis of such polypeptides in nature is either initiated by deciphering the genetic code on the ribosome during the translation process or driven by ribosome-independent processes. In the latter case, highly modified bioactive peptides are assembled by multimodular enzymes designated as nonribosomal peptide synthetases (NRPS) that act as a protein-template to generate chemically diverse peptides. On the other hand, the ribosome-dependent strategy, although relying strictly on the 20鈥?2 proteinogenic amino acids, generates structural diversity by extensive post-translational-modification. This strategy seems to be highly distributed in all kingdoms of life. One example for this is the lasso peptides, which are an emerging class of ribosomally assembled and post-translationally modified peptides (RiPPs) from bacteria that were first described in 1991.