devd peptide Ac-DEVD-pNA Peptide - dht-peptide 18F-CP18 The DEVD Peptide: A Crucial Motif in Apoptosis Research and Drug Development

determine-the-sequence-of-the-peptide-from-the-mass-spectrum The DEVD peptide sequence, comprising the amino acids Aspartic acid, Glutamic acid, Valine, and Aspartic acid, plays a pivotal role in cellular processes, particularly in the intricate mechanisms of apoptosis.Ac-DEVD-AFC Caspase-3 Fluorogenic Substrate Its significance stems from its specific recognition by caspase-3, a key executioner protease in the apoptotic pathway. This interaction has led to the extensive use of DEVD peptide and its derivatives in various scientific and biomedical applications, ranging from fundamental research into cell death to the development of novel therapeutic strategies.

Understanding the DEVD peptide is crucial for researchers investigating the complexities of programmed cell death. Its structure and function are intimately linked to the activity of caspases. For instance, Ac-DEVD-pNA serves as a synthetic tetrapeptide substrate that is specifically hydrolyzed by caspase-3 and its related cysteine proteases. This hydrolysis releases a chromophore, making Ac-DEVD-pNA a valuable tool for the colorimetric detection and quantification of caspase-3 activity. Similarly, Ac-DEVD-AMC peptide, containing an aminomethylcoumarin fluorophore, acts as a fluorogenic substrate.Optimization of a Stable Linker Involved DEVD Peptide- ... Upon cleavage by caspase-3, the Ac-DEVD-AMC peptide releases the fluorescent AMC, allowing for sensitive, real-time monitoring of enzyme activityDescription. AMC (7-amino-4-methylcoumarin) derived caspase substrates are widely used for the fluorimetric detection of various caspase activities.. Another fluorogenic substrate, Z-DEVD-AMC, also facilitates the continuous measurement of caspase-3 activity in cell extracts using a fluorometer作者：R Shiri·2014·被引用次数：34—We investigated the effects of caspase-3 inhibitor on the survival and function of platelets after different periods of storage.. The DEVD sequence is also found in synthetic peptide aldehydes like Ac-DEVD-CHO, which function as potent inhibitors of caspase-3 and caspase-7. These Ac-DEVD-CHO compounds are considered effective irreversible Caspase inhibitors and are essential for studying the role of caspases in apoptosis and cell death作者：SW Chung·2015·被引用次数：29—TheDEVDmotif has three −COOH groups in its amino acid side chains. As the −COOH is generally ionized in physiological pH, the side chain − ....

The specific cleavage of the DEVD peptide by caspase-3 has been leveraged in the design of more sophisticated molecular tools. For example, the DEVD peptide has been extensively used as a caspase 3-cleavable imaging probe for both in vitro and in vivo imaging of apoptosis.Ac-DEVD-AFC is a fluorogenic substrate of caspase-3/7 and other related caspases. Working concentration of this substrate is 25-50 µM. This application is exemplified by 18F-CP18, a novel DEVD containing peptide substrate designed for PET imaging of apoptosis. Furthermore, the DEVD peptide has found utility as an enzyme-sensitive linker in drug conjugates. In this context, researchers have explored the use of a DEVD peptide used as an enzyme-sensitive linker in drug conjugates, such as linking a drug like doxorubicin (DOX) to a carrier molecule through the DEVD peptide.The current study demonstrates the process of selecting an optimal structure for a caspase-3-cleavable doxorubicin prodrug that could be synthesized by ... This strategy allows for the targeted release of the drug specifically at sites of high caspase-3 activity, a hallmark of apoptotic cells, thereby enhancing therapeutic efficacy and reducing systemic toxicity. The synthesis of such conjugates often involves complex chemical routes, with some studies detailing that the Ac-DEVD-pNA peptide is synthesized from C- to N-terminus, a process that begins with coupling para-nitroaniline to Fmoc-Asp(OtBu).

Beyond its direct application in imaging and drug delivery, the DEVD peptide motif is integral to the development of selective caspase-3 peptide inhibitorsZ-DEVD-AFC | Fuorogenic Caspace-3 Substrate. These inhibitors, often synthesized using solid-phase peptide synthesis techniques, are crucial for dissecting the specific roles of caspase-3 in various cellular contextsAc-DEVD-pNA, Caspase-3 Substrate (TBP0137). For instance, Z-DEVD-FMK Caspase-3 Inhibitor is a cell-permeable, irreversible inhibitor that effectively inhibits tumor cell apoptosis. Its impact has been studied in various biological systems, with research indicating that the caspase-3 inhibitor (peptide Z-DEVD-FMK) affects the survival and function of platelets in platelet concentrate during storage.

The exploration of the DEVD peptide extends to the development of novel biomaterialsThe caspase-3 inhibitor (peptide Z-DEVD-FMK) affects .... For example, a DEDV-based hydrogelator 2 induces cell death via apoptotic pathway, while a related DEVD-based hydrogelator 1 minimizes cellular apoptosis inductionSolid phase synthesis of selective caspase-3 peptide .... This highlights the nuanced control that peptide sequences can exert on cellular responses, even with subtle variations in their amino acid composition.

The synthesis of these specialized peptide molecules often involves established methodologies in organic chemistry. For instance, Synthetic DEVD peptide amides or methyl esters can be prepared using Fmoc/tBu chemistry on specific resin supports. The precise synthesis of these compounds, such as Ac-DEVD-pNA Peptide, is critical for ensuring their purity and biological activity.Z-D-E-V-D-AMC; Cbz-D-E-V-D-AMC; Carpase-3 substrate ( ... In terms of concentration, substrates like Ac-DEVD-AFC (Acetyl-Asp-Glu-Val-Asp-aminomethylcoumarin) typically have a working concentration of 25-50 µM for optimal performance in enzymatic assays.

In summary, the DEVD peptide is a fundamental molecular entity with profound implications for our understanding of apoptosis and the development of new therapeutic interventionsAc-DEVD-AFC, (Caspase 3 (Apopain) Substrate). Its specific interaction with caspase-3 has paved the way for the creation of sensitive detection probes, targeted drug delivery systems, and potent caspase inhibitors, underscoring its enduring importance in biochemical research and pharmaceutical innovation.