Synonym |
DEVDase substrate (DEVDS) |
Species |
Human |
Protein Accession |
P3525 |
Purity |
Greater than 95% by HPLC |
Endotoxin Level |
Less than 1 EU per ug of the protein by the LAL method |
Biological Activity |
Fully biologically active when compared to standard |
Expression System |
E. coli |
Fusion Tag |
None |
Predicted Molecular Mass |
396.4 Da |
Formulation |
Lyophilized from a 0.2 µm filtered solution of 20mM Tris, 150mM NaCl, pH 7.5 |
Reconstitution |
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the
bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1% BSA to a
concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and
stored at ≤ -20°C. Further dilutions should be made in appropriate buffered solutions. |
Storage & Stability |
Use a manual defrost freezer and avoid repeated freeze-thaw cycles. |
FAQ
What is (DEVD)2-R110 and how does it differ from similar products in the market?
(DEVD)2-R110 is
a highly specialized reagent commonly used in biochemical research, particularly in studies involving
protease activity. It is engineered to have superior sensitivity and specificity in detecting caspase
activity, a crucial component in the biochemical pathways of apoptosis. This product stands out in the
market due to its innovative design and unique properties that offer unparalleled reliability in
experimental conditions. Unlike other similar reagents, (DEVD)2-R110 is designed with dual fluorogenic
substrates that provide more robust signals, thus enhancing the detection capabilities. This dual
mechanism ensures that even low levels of protease activity can be accurately measured, which is an
improvement over typical single-substrate reagents that might miss such subtle changes.
Moreover,
(DEVD)2-R110 boasts a higher stability, which is crucial when used in various laboratory conditions.
Stability ensures that the reagent remains active and reliable throughout the entirety of the
experimental procedures, minimizing the risk of false readings. This stability is critical when the
reagent needs to be stored for extended periods or shipped over long distances. Furthermore, the precise
formulation of (DEVD)2-R110 allows it to maintain a high level of activity over a broad pH range, which
provides exceptional versatility in different experimental setups. Such a feature is not typically found
in other similar products that might require stringent pH conditions.
Another standout feature of
(DEVD)2-R110 is its minimized background interference. Many competing products suffer from high
background noise, which can obscure the true signals from the experiment, leading to inaccurate data.
This product, thanks to its proprietary formulation, significantly reduces such interferences, providing
clearer and more accurate results. It is also worth mentioning the ease of use of (DEVD)2-R110. The
reagent is designed to seamlessly integrate into existing workflows, requiring no special equipment or
complicated preparation steps. This user-friendly nature is a huge advantage for researchers looking to
streamline their experiments without sacrificing the quality of their data. All these features,
combined, make (DEVD)2-R110 a preferred choice in the research community for those requiring precise and
reliable measurement of caspase activity.
How is (DEVD)2-R110 utilized in scientific research,
particularly in apoptosis studies?
In scientific research, (DEVD)2-R110 is predominantly used for
investigating the intricate pathways of programmed cell death, known as apoptosis. This reagent plays a
pivotal role in mapping out the dynamics and kinetics of caspase activation, which are proteolytic
enzymes central to the initiation and execution phases of apoptosis. Apoptosis is a vital physiological
process ensuring normal development and homeostasis, and its dysregulation is associated with various
diseases, including cancer, autoimmune disorders, and neurodegenerative diseases. This makes
understanding and accurately measuring the process critical for both basic research and therapeutic
developments.
(DEVD)2-R110 is exceptionally valuable in apoptosis studies due to its high
specificity for caspase-3 and caspase-7, two key executioner caspases in the apoptosis cascade. It
allows researchers to detect and quantify protease activity with great precision through its fluorogenic
properties. Once introduced into a cellular model, the reagent is cleaved by active caspases, releasing
a fluorescent signal that can be measured using fluorescence-based equipment. The level of fluorescence
directly correlates with the amount of caspase activity, providing qualitative and quantitative data
regarding the apoptotic processes occurring under various experimental conditions.
The use of
(DEVD)2-R110 facilitates numerous investigative approaches. For instance, it allows for the monitoring
of caspase activity in real-time, which is crucial for studying the temporal aspects of apoptosis.
Researchers can gain insights into how quickly cells respond to pro-apoptotic signals or drugs, allowing
for a deeper understanding of cell death mechanisms. Furthermore, the reagent is invaluable in screening
studies aimed at discovering new compounds or drugs that can modulate apoptosis. By analyzing the
changes in caspase activity upon drug treatment, researchers can determine the efficacy of potential
therapeutic agents in either promoting or inhibiting cell death.
Moreover, (DEVD)2-R110 can be
used in conjunction with other cellular assays to provide a comprehensive view of cellular status. For
instance, when used alongside assays that measure cell viability or DNA fragmentation, it gives a
holistic understanding of the cell’s journey through apoptosis and the various factors influencing this
pathway. This is instrumental in distinguishing between apoptotic and necrotic cell death processes and
understanding compound-specific effects. The reliability, sensitivity, and versatile applications of
(DEVD)2-R110 make it an indispensable tool for scientists investigating the vast and complex field of
apoptosis.
Can you explain how (DEVD)2-R110 contributes to the broader field of cancer
research?
(DEVD)2-R110 is a critical tool in cancer research, contributing significantly to our
understanding of cancer biology, therapeutic targets, and treatment responses. Cancer is characterized
by the evasion of programmed cell death or apoptosis, enabling malignant cells to proliferate unchecked.
As such, restoring the ability of cancer cells to undergo apoptosis is a major focus of current
therapeutic strategies, whether through direct induction or through sensitizing cells to
apoptosis-inducing agents. (DEVD)2-R110 plays an essential role in this area by providing sensitive and
specific measurement of apoptotic activity within cancer cells under various experimental and treatment
conditions.
In the realm of drug discovery and development, (DEVD)2-R110 is pivotal in screening
potential anti-cancer compounds. Researchers utilize this reagent to evaluate how new drug candidates
affect caspase activity within cancer cells. A successful drug candidate often results in increased
caspase activity, indicating the restoration or induction of apoptotic pathways. Through these studies,
(DEVD)2-R110 assists in identifying compounds that may work as effective therapies by either inducing
apoptosis in tumor cells or by mitigating the cell’s resistance to apoptosis.
Furthermore,
(DEVD)2-R110 facilitates the study of specific genetic or epigenetic changes associated with cancer
progression. By analyzing caspase activity in genetically modified cell lines, researchers can delineate
the roles of particular genes or mutations in either promoting or preventing apoptosis. This information
can pinpoint potential targets for intervention and help develop personalized cancer therapies based on
a patient’s unique genetic makeup. Additionally, the reagent assists in understanding the mechanisms of
resistance to existing therapies. For instance, certain cancers develop resistance to chemotherapy by
inactivating apoptotic pathways. By using (DEVD)2-R110, scientists can explore how these cells bypass
apoptosis and develop strategies to counteract these resistance mechanisms.
The reagent also
supports preclinical studies by evaluating how effective an experimental treatment might be in a living
system. Through in vivo models, (DEVD)2-R110 enables the assessment of caspase activation in real-time
following treatment, offering valuable data on a drug’s efficacy and potential side effects before
clinical trials. Finally, as cancer treatments often involve combination therapies, (DEVD)2-R110 assists
researchers in unraveling the synergistic effects of combined treatments, leading to optimized
therapeutic regimens. Overall, its precise measurement of apoptotic activity provided by (DEVD)2-R110 is
instrumental in several facets of cancer research, aiding in the development of more targeted and
effective treatments.
How does (DEVD)2-R110 enhance the study of neurodegenerative
diseases?
(DEVD)2-R110 significantly enhances the study of neurodegenerative diseases by enabling
precise measurement of apoptotic processes within neuronal cells, which are pivotal in the
pathophysiology of these disorders. Neurodegenerative diseases, such as Alzheimer's, Parkinson's, and
Huntington's, are marked by the progressive degeneration of nerve cells, leading to impaired function
and ultimately, cell death. While the mechanisms leading to neuronal death are complex and
multifactorial, apoptosis is one of the significant pathways implicated in these diseases. By utilizing
(DEVD)2-R110, researchers can gain a better understanding of the role of apoptosis in the progression of
neurodegenerative conditions.
The reagent’s ability to sensitively detect caspase activity allows
for detailed examination of how these enzymes are activated in neurodegenerative disease models. This
information is crucial, as dysregulation of caspase activity is believed to contribute to the
neurodegeneration seen in these disorders. By employing (DEVD)2-R110 in cellular or animal models,
researchers can explore how specific factors, such as genetic mutations, oxidative stress, or
inflammation, may lead to the inappropriate activation of apoptotic pathways. This provides insights
into potential risk factors or triggers of neurodegeneration.
Furthermore, (DEVD)2-R110 plays a
vital role in the screening and development of neuroprotective therapies. As these diseases currently
lack effective treatments to halt or reverse progression, there is an urgent need to identify compounds
that can protect neurons from apoptosis. By measuring changes in caspase activity in response to new
drugs or treatment regimens, (DEVD)2-R110 assists in assessing a therapeutic’s potential to preserve
neuronal function and survival. This process is integral in the early stages of drug development, where
numerous compounds are evaluated for efficacy and safety before advancing to clinical trial
phases.
The tool also aids in the study of neuron-specific apoptosis pathways. Since neurons have
unique responses to apoptotic signals compared to other cell types, (DEVD)2-R110 provides a means to
dissect these pathways specifically within neural tissues. This can lead to the discovery of
neuron-specific targets for intervention, offering more refined therapeutic strategies that reduce
unwanted side effects on other cell types. Additionally, the reagent is beneficial in studying the
chronic effects of sustained apoptotic activity, reflecting the long-term nature of neurodegenerative
disease progression.
In summary, (DEVD)2-R110 serves as an invaluable tool in neurodegenerative
disease research, providing detailed insights into the apoptosis-related mechanisms of neuronal death
and aiding the discovery of novel therapeutic approaches aimed at protecting neuronal health and
function.
What practical considerations should be taken into account when using (DEVD)2-R110 in
laboratory settings?
When using (DEVD)2-R110 in laboratory settings, several practical
considerations must be taken into account to ensure accurate and reliable experimental outcomes. Proper
preparation and handling of the reagent are critical, given its sensitive nature and the precision
required in biochemical assays. Firstly, ensuring the reagent is stored under optimal conditions is
crucial for maintaining its stability and activity. This typically involves keeping (DEVD)2-R110 at low
temperatures, such as in a -20°C freezer, to prevent degradation. Researchers should also be mindful of
the reagent’s sensitivity to light and moisture; thus, it should be handled in minimal light conditions
and kept in airtight containers whenever possible.
Before beginning experiments, proper
calibration of equipment is necessary. The reagent’s fluorescence output must be accurately captured,
and therefore, ensuring that spectrophotometers or fluorescent plate readers are correctly set up and
calibrated is essential. This includes selecting the appropriate excitation and emission wavelengths
specific to (DEVD)2-R110’s properties, as variations can lead to inaccurate readings. Adjusting the
settings to match the reagent’s optimal detection parameters is a key step in the
protocol.
Another vital consideration is the preparation of samples. Any buffers or culture media
should be free of impurities that could interact with the reagent, as this could result in background
fluorescence or signal interference, skewing data interpretation. Therefore, using high-purity water and
analytical-grade reagents in solution preparation is recommended. When preparing samples for analysis,
the concentration of (DEVD)2-R110 should be optimized based on the specific experimental requirements.
Too high or too low concentrations can lead to saturation effects or insufficient signal detection,
making assay optimization crucial during preliminary experiments.
To address potential
cytotoxicity, appropriate controls should always be run alongside test samples. This includes negative
controls where no induced apoptosis is expected, and positive controls where apoptosis is
well-documented, ensuring that any changes in fluorescence are indeed due to caspase activity. Another
practical aspect is ensuring a thorough understanding of the experimental timeline. Real-time monitoring
of fluorescence changes is often necessary, as apoptosis-related caspase activity can be a dynamic
process, requiring timely data capture and analysis to accurately reflect the biological scenario being
studied.
Lastly, result interpretation must consider all potential sources of error, such as
pipetting inaccuracies or unexpected interactions within complex sample matrices. Implementing steps to
minimize these errors, like using consistent pipetting techniques and regularly recalibrating pipettes,
enhances the reliability of the data obtained from (DEVD)2-R110-based assays. By accounting for these
practical considerations, researchers can maximize the reliability and validity of their studies using
(DEVD)2-R110 in laboratory settings.