mersacidin chemical synthesis solid-phase peptide total synthesis of the lantibiotic lactocin S - yensa-pink-lotus-peptide solid-phase peptide synthesis

mersacidin-solid-phase-peptide-synthesis-chemical-synthesis The chemical synthesis of the lantibiotic mersacidin, particularly through solid-phase peptide synthesis (SPPS), represents a significant area of research for understanding and potentially harnessing its antimicrobial properties. Mersacidin is a 20-amino acid peptide antibiotic produced by Bacillus species, known for its activity against Gram-positive bacteria by disrupting the cell wall作者：P Perumal·2013·被引用次数：23—Synthesis of these peptides is convenient by usingsolid phase peptide synthesisby using FMOC chemistry protocol. The secondary structures of three synthetic .... The complexity of its structure, including lanthionine bridges, makes its total synthesis a challenging yet rewarding endeavor.

Advancements in Mersacidin Synthesis

Solid-phase peptide synthesis (SPPS) has emerged as the predominant chemical strategy for constructing peptides like mersacidinSolid-Phase Peptide Synthesis. This method, often utilizing the Fmoc/tBu strategy, allows for the sequential addition of amino acids to a solid support, simplifying purification and enabling automation. Researchers have adapted and refined SPPS techniques to synthesize mersacidin and its analogues, often incorporating specialized methodologies to achieve specific structural features.作者：SM Rowe·2021·被引用次数：38—The chemical synthesis of cyclotides typically involvessolid-phase peptide synthesis(SPPS) of the linear sequence, native chemical ... For instance, microwave-assisted SPPS can accelerate reaction times, while strategies involving native chemical ligation are employed for more complex peptide assembliesVinay Swali Department of Chemistry. The goal is not only to replicate the natural peptide but also to create modified versions with enhanced stability or altered activity profiles.

Solid-Phase Peptide Synthesis: A Core Technique

Solid-phase peptide synthesis involves anchoring the C-terminal amino acid to an insoluble polymer resin. Subsequent amino acids, protected at their N-terminus and activated at their carboxyl group, are coupled sequentially to the growing peptide chain.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). After each coupling step, the temporary N-terminal protecting group is removed, preparing the chain for the next amino acid addition作者：H Liu·2010·被引用次数：1—In this thesis, the central theme ischemical synthesisof naturally occurring cyclicpeptidesand their analogues combined with the examination of their .... This iterative process continues until the desired peptide sequence is assembled. The solid support facilitates easy removal of excess reagents and byproducts through simple washing steps, making it a highly efficient method for peptide synthesis.Chemical Synthesis of the Lantibiotic Lacticin 481 Reveals ... For mersacidin, the unique post-translational modifications, such as the formation of thioether bonds characteristic of lantibiotics, require specific chemical steps to be integrated into the SPPS workflowChemical Synthesis of the Lantibiotic Lacticin 481 Reveals ....

Challenges and Innovations in Lantibiotic Synthesis

The synthesis of lantibiotics like mersacidin presents unique challenges beyond standard peptide synthesis. The presence of non-proteinogenic amino acids, particularly lanthionine and methyllanthionine residues formed from dehydration and cyclization of serine, threonine, and cysteine, requires specialized reagents and reaction conditions. Creating these complex thioether rings often involves cyclization reactions performed either on-resin or after cleavage from the solid support. Innovations in SPPS have focused on developing robust coupling chemistries and cyclization strategies that are compatible with the solid-phase environment, enabling the efficient construction of these modified peptide structures.作者：I Coin·2007·被引用次数：877—This protocol forsolid-phase peptide synthesis(SPPS) is based on the widely used Fmoc/tBu strategy, activation of the carboxyl. The successful total synthesis of mersacidin and related lantibiotics through these advanced SPPS techniques provides invaluable tools for studying their biological mechanisms and exploring their therapeutic potential.