pkc-inhibitor-peptide The search intent for "pkc inhibitor peptide" is primarily informational, focusing on understanding what these peptides are, how they work, and their specific applications, particularly in research. There's a strong emphasis on various isoforms of Protein Kinase C (PKC) and how different peptides target them.PKCζ pseudosubstrate is aninhibitorofprotein kinase C(PKC) ζ; attached to cell permeabilisation Antennapedia domain vectorpeptide. Consists of amino acids ...
Tier 1:
* Core Entity: PKC inhibitor peptide
* High-Relevance Phrases: Protein Kinase C (PKC), peptide inhibitor, inhibitor peptide, PKC inhibitor, inhibition, inhibitor
Tier 2:
* Isoforms: PKC epsilon (PKC ε), PKC alpha (PKC α), PKC beta (PKC β), PKC zeta (PKC ζ), PKC delta (PKC δ)
* Mechanisms: translocation inhibitor, pseudosubstrate, active sites, binding to receptor, disrupting binding, blocking substrate-binding site
* Properties: selective, reversible, potent, cell-permeable, synthetic peptide
* Related Concepts: signal transduction, phosphorylation, kinase activity, research product
Tier 3:
* Specific peptide sequences (e作者：EN Churchill·2008·被引用次数：130—Shortpeptidesderived from interaction sites between eachPKCisozyme and its receptor for activated C kinase act as highly specificinhibitors..gAPKC inhibitoris defined as a compound that specifically targets protein kinase C (PKC), a family of serine/threonine kinases involved in cell signaling ...., 19-36, 19-31, 19-35, 19-27, 8-17, C2-4, V1 domain, amino acids 19-31) unless they represent a key class.Articles Functional Deactivation of the Major Neuronal Nicotinic Receptor ...
* Commercial product names/codes (e.A myristoylated pseudosubstrate peptide, a novel protein ...g., CRB1001138, 539560, CAS 182683-50-7).
* Specific experimental results or very niche applications not representative of the general topicPKCd (8-17), PKCd Inhibitor - 1 mg.
* Phrases that are overly repetitive or generic without adding specific value.
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PKC inhibitor peptides are crucial tools in biochemical and cell biology research, designed to selectively block the activity of Protein Kinase C (PKC) enzymes. These peptides function by interfering with various aspects of PKC activation and signaling pathways, offering researchers a precise method for studying the complex roles of PKC isoforms in cellular processes.作者：T Kawano·2021·被引用次数：130—PKC peptide inhibitorsare mainly divided into (1)peptidesderived fromPKCprotein fragment and (2)peptidesobtained by the mutation of phosphorylation sites ... Understanding the different types of PKC inhibitor peptides and their mechanisms of action is key to their effective application in scientific investigations.PKC β pseudosubstrate (1792) by Tocris, Part of ...
Protein Kinase C (PKC) represents a family of serine/threonine kinases involved in a wide array of cellular functions, including cell growth, differentiation, apoptosis, and immune responses. This signaling pathway is activated by diacylglycerol (DAG) and calcium ions, leading to the translocation of PKC enzymes to specific cellular compartments where they phosphorylate target proteins. Dysregulation of PKC signaling is implicated in various diseases, making it a significant target for therapeutic research and a vital area of study for understanding fundamental cell biologyPKCε TranslocationInhibitor Peptide, Negative Control - Calbiochem The PKCε TranslocationInhibitor Peptide, Negative Control controls the biological ....
PKC inhibitor peptides offer a targeted approach to studying these enzymes. Unlike small molecule inhibitors that might affect multiple targets, peptides can be designed with high specificity for particular PKC isoforms or specific steps in their activationPeptides Targeting Protein Kinases: Strategies and .... This specificity is critical for dissecting the unique contributions of each PKC isoform to cellular signaling.
PKC inhibitor peptides achieve their inhibitory effects through several distinct mechanisms:
* Pseudosubstrate Inhibition: Many PKC inhibitor peptides are derived from the pseudosubstrate region of PKC itself. This region normally binds to the kinase domain and keeps the enzyme inactive.PKC ζ pseudosubstrate When introduced exogenously, these peptides mimic the pseudosubstrate, binding to the active site of the PKC enzyme and preventing it from phosphorylating its natural substratesPKCεinhibitor peptideis selectively and reversibly inhibits the translocation ofProtein Kinase Cepsilon. Purity: ≥97%. Molecular Weight: 844.. Examples include peptides derived from the regulatory domain of PKC alpha (PKCα) or PKC beta (PKCβ) such as PKC (19-31) or PKC (19-35).
* Translocation Inhibition: Some peptides are designed to prevent the movement of PKC enzymes from the cytoplasm to the cell membrane or other intracellular locations, a critical step for their activation.PKC inhibitoris an activepeptidepotent inhibitor of PKC (Ki of 0.15 μM); no significant inhibition of cAMP-dependent protein kinases (IC50>400 μM) For instance, PKC epsilon (PKCε) translocation inhibitor peptides work by disrupting the interaction between PKCε and its receptor for activated C kinase (RACK) proteins, thereby blocking its recruitment to specific signaling platforms.
* Disruption of Protein-Protein Interactions: Certain peptides can interfere with the interactions between PKC and other proteins essential for its function, such as scaffolding proteins or downstream effectors. This approach targets specific protein-protein interfaces involved in PKC signaling cascades.
* Blocking Substrate Binding Sites: Similar to pseudosubstrate inhibition, some peptides may directly block the substrate-binding site of the PKC enzyme, preventing it from accessing and phosphorylating its target molecules.
The PKC family comprises multiple isoforms, broadly categorized into conventional (cPKC), novel (nPKC), and atypical (aPKC) groups, each with unique activation requirements and cellular roles. PKC inhibitor peptides are often developed to target specific isoforms, enabling researchers to investigate their distinct functions.
* PKC Epsilon (PKCε): This isoform plays roles in cell survival, proliferation, and neurotransmitter release. Inhibitor peptides targeting PKCε, such as epsilon-V1-2, are valuable for studying its involvement in neuronal signaling and other cellular processes作者：T Eichholtz·1993·被引用次数：352—These results show that myr-+PKCis a selective and cell-permeableinhibitorofPKC.Protein kinase C(PKC)' represents a family of homologous..
* PKC Alpha (PKCα) and PKC Beta (PKCβ): These conventional PKCs are involved in a wide range of cellular responsesepsilon-V1-2, epsilon-PKC Inhibitor. Pseudosubstrate peptides derived from their regulatory domains, like PKC (19-31), are commonly used to inhibit their activity.
* PKC Zeta (PKCζ): As an atypical PKC, PKCζ has distinct activation mechanisms. Specific pseudosubstrate inhibitors for PKCζ are available to study its roles in processes like cell polarity and immune responses.
* PKC Delta (PKCδ): This conventional PKC is involved in apoptosis and stress responses. Inhibitor peptides derived from its V1 domain can block its translocation and subsequent activityPKC Inhibitor Peptide 19-36 | 539560.
PKC inhibitor peptides are indispensable research tools. They are used to:
* Elucidate Signaling Pathways: By selectively blocking a specific PKC isoform, researchers can determine its precise role in a given signaling cascade or cellular phenotype.
* Validate Drug Targets: These peptides can help validate whether a particular PKC isoform is a suitable target for therapeutic intervention in diseases where PKC signaling is aberrant.
* Investigate Disease Mechanisms: Their application aids in understanding the contribution of specific PKC isoforms to the pathogenesis of conditions such as cancer, neurological disorders, and inflammatory diseases.
* Control Experimental Conditions: As potent and specific inhibitors, they allow for fine-tuning of experimental conditions to isolate the effects of PKC activity.
While some PKC inhibitor peptides have been discontinued or are primarily available as research reagents, their continued development and application are essential for advancing our understanding of kinase biology and developing targeted therapies. The specificity offered by peptide inhibitors provides a distinct advantage in complex biological systems, allowing for detailed mechanistic studies.PKCα (C2-4) Inhibitor Peptide
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