mersacidin solid-phase peptide synthesis synthesis peptide - merck-macrocyclic-peptide mersacidin Mersacidin Solid-Phase Peptide Synthesis: A Deep Dive into Chemical Construction

men-s-health-clinic-peptides The intricate world of natural product chemistry often yields powerful tools for combating microbial threats作者：R Dickman·2019·被引用次数：50—28 We have developed a powerfulsolid-phase peptide synthesis(SPPS) strategy for thesynthesisof lanthionine- containingpeptides.29 This is .... Among these are lantibiotics, a class of peptide antibiotics characterized by their unique post-translational modifications, including the incorporation of the thioether amino acid lanthionine. Mersacidin, a potent lantibiotic produced by *Bacillus* species, stands out for its broad-spectrum activity against Gram-positive bacteria, including problematic multidrug-resistant strains like methicillin-resistant *S. aureus*. Understanding the chemical construction of such complex molecules is crucial for developing novel therapeutic agents. This article explores the detailed methodologies involved in the mersacidin solid-phase peptide synthesis, drawing upon cutting-edge research and established techniques.

The search_keyword "mersacidin solid-phase peptide synthesis synthesis" directly leads us to a wealth of information detailing the challenges and triumphs in chemically replicating this important peptide. While mersacidin is naturally produced through ribosomal synthesis followed by intricate post-translational modifications, chemical synthesis offers precise control and the ability to create analogs with potentially improved propertiesSolid-Phase Peptide Synthesis. The prevailing method for this endeavor is solid-phase peptide synthesis (SPPS), a cornerstone technique that has revolutionized peptide chemistry since its inception.The Lantibiotic Mersacidin Is an Autoinducing Peptide - PMC

Solid-phase peptide synthesis offers significant advantages over traditional solution-phase methods, particularly for longer and more complex peptides like mersacidin. The core principle involves anchoring the C-terminal amino acid of the nascent peptide chain to an insoluble polymer resin.Solid-Phase Peptide Synthesis. Authors: Mare Cudic1,. Gregg B. Fields1. Mare ...solid phase peptide synthesis. Synthesis: 1592–1596; Ferguson JD (2003) ... Subsequent amino acids are then sequentially added to the growing chain in a stepwise manner. Crucially, excess reagents and byproducts from each coupling and deprotection step can be easily washed away, simplifying purification and driving the reaction to completion. This iterative process allows for the systematic, chemical construction of the peptide mersacidinSolid-Phase Peptide Synthesis.

Several solid phase peptide synthesis strategies are employed, with the Fmoc (9-fluorenylmethyloxycarbonyl) strategy being particularly prominent. The Fmoc solid-phase synthesis strategy utilizes base-labile Fmoc groups to protect the alpha-amino group of incoming amino acids.作者：Y Belguesmia·2024·被引用次数：3—In this study,microwave-assisted solid-phase peptide synthesiswas used to produce the leaderless two-peptide bacteriocin enterocin DD14 (EntDD14). Deprotection is typically achieved with a mild base, such as piperidine, allowing for the introduction of the next protected amino acid. This orthogonal protection scheme is vital for preventing unwanted side reactions.2023年7月21日—The synthesis of mersacidin primarily occurs within Bacillus strains throughribosomal synthesisfollowed by post-translational modifications. As highlighted in various studies, Peptides were synthesized by hand using the Fmoc solid-phase synthesis strategy, emphasizing the meticulous nature of this process. Advanced techniques also include microwave-assisted solid-phase peptide synthesis, which can significantly accelerate coupling and deprotection steps, thereby reducing overall synthesis time1天前—It inhibits the elongationphaseof proteinsynthesiseither by blocking the ribosomal exit tunnel or by interfering with elongation factors ( ....

The synthesis of mersacidin presents specific challenges due to its unique lanthionine bridges and other post-translational modifications. Researchers often employ strategies involving the solid-phase synthesis of precursor peptides followed by cyclization and the formation of these thioether linkages. For example, studies on other lantibiotics, such as the total synthesis of the lantibiotic lactocin S, demonstrate the successful application of solid-phase peptide cyclizationsSynthesis, antimicrobial activity, and mechanistic studies of .... Similarly, the D-ring of mersacidin has been synthesized by researchers using similar strategies, showcasing the adaptability of solid-phase peptide synthesis techniques to incorporate complex structural features[43][44] [45] VanNieuwenhze and co-workers have also used a similar orthogonal protection strategy to synthesise the D-ring ofmersacidin, a methicillin- ....

The successful execution of solid-phase peptide synthesis for mersacidin requires careful consideration of various parameters, including resin selection, coupling reagents, and cleavage conditions作者：AC Ross·2011·被引用次数：115—The synthesis of olefin–lacticin 3147 A2 was accomplished usingsolid phase peptide synthesis techniquescombined with ring-closing metathesis .... The resin serves as the solid support, and its properties can influence peptide loading and cleavage efficiency. Various coupling reagents, such as HBTU or HATU, are used to activate the carboxyl group of the incoming amino acid, facilitating its condensation with the free amine on the resin-bound peptide. After the entire peptide sequence is assembled, the peptide is cleaved from the resin, typically using strong acids like trifluoroacetic acid (TFA), which also serves to remove side-chain protecting groups.Fundamental functionality: recent developments in ...

Beyond standard solid-phase peptide synthesis, researchers may also explore solid-supported chemical synthesis approaches to create mersacidin analogs. This involves immobilizing not only the peptide chain but also key reagents or catalysts on solid supports, further streamlining the process and potentially enabling novel reaction pathways.Mersacidinis an antimicrobialpeptideof 20 amino acids which is produced by Bacillus sp. strain HIL Y-85,54728.Mersacidininhibits bacterial cell wall ... The ability to explore and optimize these synthetic routes is paramount for understanding the structure-activity relationships of mersacidin and for generating derivatives with enhanced antimicrobial efficacy or altered pharmacokinetic profiles.

In summary, the chemical synthesis of mersacidin is a testament to the power and versatility of solid-phase peptide synthesis. By leveraging established Fmoc solid-phase synthesis strategy and exploring advanced techniques like microwave-assisted solid-phase peptide synthesis, scientists can overcome the complexities of this lantibiotic and pave the way for new therapeutic interventions. The ongoing research in this field underscores the importance of peptide synthesis in drug discovery and development, particularly for combating challenging bacterial infections where novel peptide-based solid agents are desperately needed. The meticulous process of phase synthesis and peptide synthesis ultimately contributes to our deeper understanding and potential utilization of molecules like mersacidin.