Z-Arg-SBzl includes a benzylic thioester and an N-terminal protecting group that support controlled cleavage studies. The arginine side chain contributes strong basicity and hydrogen-bond capacity. The compound is frequently employed to assess enzyme selectivity and nucleophilic attack mechanisms. Uses extend to peptide-synthesis strategy testing and catalytic profiling.
CAT No: R2447
CAS No:88253-86-5
Synonyms/Alias:Z-Arg-SBzl;88253-86-5;Z-Arg-S-Bzl;FUGAPOARIHJRAG-SFHVURJKSA-N;HY-P5125;CS-0774333;S-benzyl (2S)-5-(diaminomethylideneamino)-2-(phenylmethoxycarbonylamino)pentanethioate;
Z-Arg-SBzl, also known as benzyloxycarbonyl-arginine benzylthioester, is a specialized carbohydrate compound widely recognized for its utility in peptide synthesis and biochemical research. As a protected arginine derivative featuring both a benzyloxycarbonyl (Z) group and a thioester functional group, Z-Arg-SBzl offers unique chemical properties that facilitate selective peptide bond formation and enable advanced manipulation of peptide chains. The presence of the thioester moiety is particularly advantageous for native chemical ligation and related chemoselective processes, making this compound a valuable tool for researchers aiming to construct complex peptides or investigate protein structure and function. Its stability under various conditions and compatibility with a range of synthetic protocols further enhance its appeal in laboratory settings, supporting innovative research in molecular biology, enzymology, and synthetic chemistry.
Peptide Synthesis: In the field of peptide synthesis, Z-Arg-SBzl serves as an essential building block for the stepwise assembly of peptides containing arginine residues. Its protected guanidino group prevents undesired side reactions during chain elongation, allowing for precise incorporation of arginine at specific positions within the peptide sequence. The thioester functionality enables the use of native chemical ligation, a powerful technique for joining unprotected peptide fragments, which is particularly useful for synthesizing larger and more complex peptides that are difficult to assemble by conventional methods. By facilitating chemoselective bond formation, this compound streamlines the synthesis process and improves overall yields, addressing challenges associated with arginine incorporation and peptide assembly.
Enzymatic Mechanism Studies: Researchers investigating the mechanisms of proteolytic enzymes often utilize Z-Arg-SBzl as a model substrate or intermediate. The thioester group mimics natural acyl-enzyme intermediates, enabling detailed studies of enzyme-substrate interactions and catalytic processes. By incorporating this compound into enzyme assays, scientists can probe the specificity, kinetics, and catalytic efficiency of various proteases, particularly those that recognize arginine-containing substrates. Such studies contribute to a deeper understanding of enzyme function, substrate recognition, and transition state stabilization, providing valuable insights for the design of enzyme inhibitors and the development of novel biocatalysts.
Protein Engineering: In protein engineering applications, Z-Arg-SBzl is employed to introduce site-specific modifications or to facilitate the semi-synthesis of proteins with tailored properties. The thioester group allows for selective ligation with cysteine-containing peptides or proteins, enabling the assembly of hybrid molecules with defined sequences and functionalities. This approach is instrumental in creating proteins with novel domains, post-translational modifications, or site-specific labels, advancing research in protein structure-function relationships and the development of engineered biomolecules for therapeutic or industrial use.
Bioconjugation Techniques: The unique reactivity of the thioester moiety in Z-Arg-SBzl also finds application in bioconjugation strategies, where it is used to attach peptides or other biomolecules to various carriers, surfaces, or probes. Through chemoselective ligation reactions, researchers can create conjugates for use in diagnostics, imaging, or biosensing, enhancing the detection and analysis of biological targets. The ability to form stable, covalent linkages under mild conditions makes this compound a preferred choice for constructing bioconjugates with high specificity and minimal side reactions.
Chemical Biology Research: Z-Arg-SBzl plays a significant role in chemical biology research, where it supports the development of novel tools and methodologies for studying biological systems. Its versatility as a synthetic intermediate enables the creation of peptide-based probes, inhibitors, or mimetics that can modulate biological pathways or serve as molecular tools for dissecting cellular processes. By offering precise control over peptide structure and reactivity, this compound empowers researchers to explore new frontiers in protein chemistry, molecular recognition, and cellular signaling, driving innovation in both fundamental and applied biosciences.
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