lacticin 481 total synthesis solid-phase peptide synthesis solid-phase peptides ynthesis - labs-that-test-peptides lacticin 481 Lacticin 481 Total Synthesis: Advancing Peptide Chemistry Through Solid-Phase Techniques

lactoferrin-peptide The total synthesis of Lacticin 481, a potent lantibiotic, represents a significant achievement in peptide chemistry. This complex undertaking, often achieved through solid-phase peptide synthesis (SPPS), allows researchers to construct the intricate structure of Lacticin 481 and its analogs. The development of robust SPPS methodologies, including those employing Fmoc-based strategies and specialized resins, has been crucial for the successful and systematic construction of this antimicrobial peptide and similar molecules.作者：C Chatterjee·2006·被引用次数：121—Thelacticin 481synthetase LctM offers versatile control over the installation of dehydro amino acids and thioether rings intopeptides. This approach not only enables the production of Lacticin 481 for further study but also facilitates the exploration of structure-activity relationships by creating modified versions.

The Significance of Solid-Phase Peptide Synthesis in Lantibiotic Construction

Solid-phase peptide synthesis has revolutionized the way complex peptides are assembled.Lanthipeptides: chemical synthesis versus in vivo biosynthesis ... Unlike traditional solution-phase methods, SPPS anchors the growing peptide chain to an insoluble solid support, typically a resin(PDF) Synthesis of the Lantibiotic Lactocin S Using Peptide .... This strategy simplifies the purification process, as excess reagents and byproducts can be easily washed away after each coupling step. For the total synthesis of Lacticin 481, SPPS offers a controlled and efficient pathway to build the peptide backboneChemicalSynthesisof the LantibioticLacticin 481Reveals the Importance of Lanthionine Stereochemistry · Thesynthesisof active and stable diaminopimelate ....

Key advancements in SPPS relevant to Lacticin 481 include:

* Fmoc-based SPPS: This widely adopted strategy utilizes the 9-fluorenylmethoxycarbonyl (Fmoc) protecting group, which is base-labile and compatible with acid-labile side-chain protecting groupsLacticin 481 Synthetase as a General Serine/Threonine .... This orthogonal protection scheme allows for selective deprotection and coupling steps, crucial for assembling complex peptides with modified amino acids.

* Specialized Resins: The choice of resin is critical. Resins pre-loaded with specific amino acids or those offering unique cleavage conditions can streamline the synthesis. For instance, 2'-chloro-trityl (2'-Cl-Trt) resin has been employed for its mild cleavage conditions, which are beneficial for sensitive peptide structures.

* Incorporation of Modified Amino Acids: Lantibiotics like Lacticin 481 are characterized by unusual amino acids, such as lanthionine and methyllanthionine, formed through post-translational modifications. SPPS methodologies have been developed to directly incorporate building blocks representing these modified residues, allowing for the direct synthesis of the mature peptide rather than relying solely on post-translational modification machinery.

Challenges and Innovations in Lacticin 481 Synthesis

The total synthesis of Lacticin 481 presents several challenges due to its complex structure, which includes multiple thioether cross-links and dehydro amino acids作者：Y Xu·2024·被引用次数：7—Lacticin 481, a ribosomally synthesized and post-translationally modifiedpeptide(RiPP), exhibits antimicrobial activity, for which its .... Overcoming these hurdles has driven innovation in synthetic chemistry.

* Stereochemistry: The precise stereochemistry of the lanthionine and methyllanthionine bridges is critical for the biological activity of Lacticin 481. Synthetic strategies must meticulously control the formation of these cross-links to ensure the correct spatial arrangementTotal wash elimination for solid phase peptide synthesis. Research has systematically explored the impact of lanthionine stereochemistry on the activity of Lacticin 481, highlighting the importance of accurate synthesis.

* Analog Synthesis: SPPS is particularly well-suited for the synthesis of Lacticin 481 analogs. By systematically replacing specific amino acids or modifying cross-linking patterns, researchers can probe the functional requirements of the peptide. For example, replacing lanthionine with diaminopimelate has been explored to create analogs with altered properties.

* Enzymatic Insights: While chemical synthesis is powerful, understanding the biosynthesis of Lacticin 481 provides complementary insights.作者：JM Collins·2023·被引用次数：52—We present a process forsolid phase peptide synthesis(SPPS) that completely eliminates all solvent intensive washing steps during each ... Enzymes like Lacticin 481 synthetase (LctM) play a crucial role in introducing dehydro amino acids and thioether rings. Studying these enzymes can inform synthetic strategies and offer alternative routes for peptide modificationSolid Supported Chemical Syntheses of Both Components of ....

The Broader Impact of Lacticin 481 Synthesis

The successful total synthesis of Lacticin 481 and its analogs through solid-phase methods has several far-reaching implications.

* Antimicrobial Drug Development: Lantibiotics represent a promising class of antimicrobial agents due to their potent activity against Gram-positive bacteria, including drug-resistant strains.2025年8月6日—We report thesolid-phase syntheses of both peptidesof a two-component lantibiotic, lacticin 3147. Both successive and interlocking ring ... Chemical synthesis provides a reliable means to produce these compounds in sufficient quantities for preclinical and clinical evaluation, potentially leading to new therapeutic options.

* Chemical Biology Tools: Synthetically produced Lacticin 481 and its engineered variants serve as invaluable tools for chemical biologists. They can be used to investigate the mechanisms of action of lantibiotics, study protein-peptide interactions, and explore the intricate pathways of ribosomal peptide synthesis and post-translational modification.

* Advancement of Synthetic Methodologies: The pursuit of complex peptide targets like Lacticin 481 continually pushes the boundaries of synthetic chemistry. Innovations in protecting group strategies, coupling reagents, and solid-support materials developed for these syntheses have broader applications in the field of peptide science.

In conclusion, the total synthesis of Lacticin 481, predominantly achieved through sophisticated solid-phase peptide synthesis techniques, exemplifies the power of modern organic chemistry作者：C Chatterjee·2006·被引用次数：121—Thelacticin 481synthetase LctM offers versatile control over the installation of dehydro amino acids and thioether rings intopeptides.. This endeavor not only allows for the detailed study of this important lantibiotic but also drives advancements in peptide synthesis methodologies, paving the way for the discovery and development of new therapeutic agents and research tools.