solid-phase peptide synthesis mersacidin analogues Mersacidin - solid-phase-peptide-synthesis-of-duramycin phase peptide

solid-phase-peptide-synthesis-lanthipeptide-total-synthesis The synthesis of Mersacidin analogues through solid-phase peptide synthesis (SPPS) is a key area of research for developing novel antimicrobial agents[41, 42] We have developed very effectivesolid-phase peptidesynthesis methodology which we and others have appliedtothesynthesisof individual rings of .... Mersacidin, a lantibiotic, possesses a unique structure that contributes to its potent activity against Gram-positive bacteria.synthesis of lanthionine-containing peptides on solid phase ... Modifying this structure to create analogues via solid-phase peptide synthesis aims to enhance its therapeutic properties, such as increased efficacy, broader spectrum of activity, or improved pharmacokinetic profiles.

The Significance of Mersacidin Analogues

Mersacidin belongs to the class II lanthipeptides, characterized by their ribosomal synthesis followed by extensive post-translational modifications, including the formation of thioether bridges that create complex ring structures. These modifications are crucial for the peptide's antimicrobial function, often involving interactions with lipid II, a precursor to bacterial cell wall synthesis作者：RS Narayan·2005·被引用次数：88—...peptide synthesisin solution or on thesolid phase. To get around this ... synthesis ofmersacidin. Our progress toward this end will be reported in .... The development of Mersacidin analogues is driven by the need for new antibiotics to combat rising antimicrobial resistance. By systematically altering specific regions or amino acid residues of Mersacidin, researchers can explore structure-activity relationships and design molecules with superior characteristics.

Solid-Phase Peptide Synthesis (SPPS) as a Key Methodology

Solid-phase peptide synthesis (SPPS) has become an indispensable tool for the creation of peptide analogues, including those of Mersacidin. This method offers several advantages over traditional solution-phase synthesis, particularly for complex peptides.作者：EL Ongey·2016·被引用次数：137—Thesolid phasesupportedpeptide synthesisofanaloguesof the lantibiotic lactocin S. ...mersacidin. Org. Lett. 2012;14:1030–3. 62 ... In SPPS, the growing peptide chain is covalently attached to an insoluble solid support, typically a resin. This allows for the sequential addition of amino acids and facilitates purification by simply washing away excess reagents and byproducts.A chemicalsynthesisof the D-ring ofmersacidinis reported. The synthetic route relied upon development of a method for late-stage introduction of an ...

The SPPS strategy for Mersacidin analogues often involves carefully designed synthetic routes to incorporate the characteristic non-proteinogenic amino acids and thioether linkages found in the natural peptide.作者：SM Rowe·2021·被引用次数：38—In typicalsolid-phase peptide synthesis(SPPS) strategies, only one linkage to a solid-support is provided through the C-terminus of the ... For instance, the synthesis of the D-ring of Mersacidin, which contains a unique AviMeCys residue, has been a specific focus. Researchers adapt established SPPS protocols, such as Fmoc (9-fluorenylmethyloxycarbonyl) or Boc (tert-butyloxycarbonyl) chemistry, to assemble the peptide backbone on the solid support. The subsequent cyclization and thioether bond formation steps are critical for generating the final, biologically active analogue.

Challenges and Innovations in Mersacidin Analogue Synthesis

Synthesizing Mersacidin analogues presents several challenges. The presence of unusual amino acids, such as lanthionine and dehydroamino acids, requires specialized chemical strategies for their incorporation.作者：PJ Knerr·2012·被引用次数：92—In this study,solid-supported chemicalsynthesiswas used to produceanaloguesof the potent lantibiotic epilancin 15X. Furthermore, achieving the correct stereochemistry and regiochemistry during the formation of thioether bridges is essential for biological activity.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 ...

Innovations in SPPS have addressed these challenges.作者：MR Levengood·2009·被引用次数：131—Synthesis of the AviMeCys-Containing D-Ring ofMersacidin... Thesolid phasesupportedpeptide synthesisofanaloguesof the lantibiotic lactocin ... The development of new resins, protecting group strategies, and coupling reagents has improved the efficiency and fidelity of peptide assembly作者：JH Viel·2022·被引用次数：12—The class II lanthipeptidemersacidin, a ribosomally synthesized and post-translationally modifiedpeptide(RiPP), displays unique .... For example, advancements in solid-supported synthesis methodologies have enabled the construction of complex cyclic peptides and the late-stage introduction of critical structural elements. Researchers are also exploring hybrid approaches, combining SPPS with other synthetic or biosynthetic techniques to access a wider range of Mersacidin analogues and to incorporate non-canonical amino acids more effectively.Incorporation of Non-Canonical Amino Acids into ... The ability to synthesize these modified peptides allows for detailed investigations into their mechanisms of action and their potential as therapeutic agentsSynthesis and NMR Ensemble An - UCL Discovery.