Boc-A-FMK joins a Boc-protected alanine with a fluoromethyl ketone reactive center. The minimal structure allows precise study of substrate size, stereochemistry, and charge in protease recognition. Researchers use it to explore catalytic pocket architecture and inhibition mechanisms. Its simplicity enables systematic mechanistic analysis.
CAT No: HB00056
Boc-A-FMK, or tert-butoxycarbonyl-alanine-fluoromethyl ketone, is a synthetic peptide-based inhibitor widely recognized for its role in the study of protease activity, particularly within the context of caspase research. As a modified alanine derivative featuring a fluoromethyl ketone reactive group and an N-terminal Boc (tert-butoxycarbonyl) protecting group, it is engineered to irreversibly inhibit cysteine proteases through covalent modification of the active site. Its unique structural attributes render it highly valuable for dissecting the mechanisms of proteolytic enzymes in biochemical and cellular systems. The compound's selective reactivity and stability have made it a staple in experimental protocols focused on elucidating protease function, regulation, and inhibition.
Protease inhibition studies: Boc-A-FMK is extensively employed as a tool compound for the irreversible inhibition of cysteine proteases, including caspases and related enzyme families. Its fluoromethyl ketone moiety forms a covalent bond with the active site cysteine residue, effectively blocking enzymatic activity. Researchers leverage this property to dissect protease-dependent pathways, map substrate specificity, and validate the contribution of target enzymes to biochemical processes. Its use is instrumental in distinguishing between protease-mediated and non-protease-mediated events in complex biological systems.
Cell death and apoptosis research: The compound is routinely used to probe the molecular underpinnings of programmed cell death in various model systems. By selectively inhibiting caspase activity, it allows investigators to assess the role of these proteases in apoptotic signaling cascades. Application of Boc-A-FMK in cell-based assays helps clarify the sequence of proteolytic events, the interplay between different caspase isoforms, and the downstream consequences of protease inhibition. This approach supports the identification of key regulatory nodes and the development of mechanistic models of apoptosis.
Peptide synthesis and methodology development: In peptide chemistry, Boc-A-FMK serves as a functionalized building block for the design and synthesis of custom peptide inhibitors. The incorporation of the Boc-protected alanine and the reactive fluoromethyl ketone group enables the generation of tailored inhibitors with defined specificity profiles. Synthetic chemists utilize this compound to develop new protease probes, optimize inhibitor potency, and explore structure-activity relationships. Its versatility in peptide synthesis protocols enhances the toolkit available for chemical biology and enzymology research.
Enzyme kinetics and mechanistic analysis: The irreversible mode of inhibition provided by Boc-A-FMK is particularly valuable in kinetic studies aimed at characterizing enzyme function. By introducing a time-dependent, covalent modification, it allows for the quantitative assessment of protease turnover rates, active site accessibility, and inhibitor binding dynamics. These experiments yield crucial insights into the mechanistic features of cysteine proteases and support the development of kinetic models that inform inhibitor design and screening strategies.
Functional proteomics and target validation: Boc-A-FMK is utilized in functional proteomics workflows to selectively label and capture active cysteine proteases from biological samples. By covalently trapping the active forms of these enzymes, it facilitates their subsequent identification and quantification using mass spectrometry and other analytical techniques. This application aids in the comprehensive profiling of protease activity states, supports target validation in drug discovery pipelines, and enables the mapping of protease-mediated signaling networks in diverse biological contexts.
2. Cationic cell-penetrating peptides are potent furin inhibitors
3. Myotropic activity of allatostatins in tenebrionid beetles
5. Store-operated Ca2+ entry sustains the fertilization Ca2+ signal in pig eggs
If you have any peptide synthesis requirement in mind, please do not hesitate to contact us at . We will endeavor to provide highly satisfying products and services.
Creative Peptides is a trusted CDMO partner specializing in high-quality peptide synthesis, conjugation, and manufacturing under strict cGMP compliance. With advanced technology platforms and a team of experienced scientists, we deliver tailored peptide solutions to support drug discovery, clinical development, and cosmetic innovation worldwide.
From custom peptide synthesis to complex peptide-drug conjugates, we provide flexible, end-to-end services designed to accelerate timelines and ensure regulatory excellence. Our commitment to quality, reliability, and innovation has made us a preferred partner across the pharmaceutical, biotechnology, and personal care industries.
Read More