GO:0018030 peptidyl-lysine N6-myristoyltransferase activity: Mechanism, Genes and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:0018030 describes the enzymatic transfer of a myristoyl group to the N6 nitrogen atom of a lysine residue in a peptide or protein.
• This activity is a molecular_function that modifies lysine side chains, a type of post-translational modification analogous to lysine acetylation and lysine oxidation.
• Lysine-modifying enzymes such as lysyl oxidase and acetyltransferases are critical in fibrosis, cancer, and microbial physiology, providing a framework for understanding N6-myristoyltransferases.
• Substrate recognition by lysine-modifying enzymes can be influenced by vicinal acidic residues, as shown for lysyl oxidase toward peptidyl lysine.
• Dysregulation of lysine modification pathways is linked to diseases including liver fibrosis, Crohn's disease recurrence, and antibiotic resistance.
• CRISPR-based knockout, point-mutation, knock-in, and overexpression models are essential to dissect the causal roles of genes encoding lysine-modifying enzymes.
Description
GO:0018030, peptidyl-lysine N6-myristoyltransferase activity, is a molecular function defined as the catalysis of myristoyl group transfer to the N6 nitrogen atom of a lysine residue within a peptide or protein. This activity represents a specialized form of lysine acylation, a post-translational modification that alters protein hydrophobicity, localization, and interactions. While the myristoyl transfer to lysine is distinct from the more widely studied N-terminal myristoylation, it shares conceptual parallels with other lysine-modifying reactions such as acetylation and oxidation. Understanding this activity is crucial because lysine side-chain modifications are central to cellular regulation, and their dysregulation contributes to diseases ranging from fibrosis to cancer. Research on lysine-modifying enzymes has historically focused on lysyl oxidase, which oxidizes peptidyl lysine to form cross-links in collagen and elastin. Studies have shown that the activity of lysyl oxidase toward peptidyl lysine is modulated by vicinal dicarboxylic amino acid residues, highlighting the importance of sequence context in substrate recognition. Similarly, lysine acetyltransferases regulate bacterial physiology, including antibiotic resistance and anaerobic respiration, by modifying specific lysine residues. These findings provide a conceptual framework for investigating N6-myristoyltransferases, which likely share mechanistic features such as lysine substrate specificity and reliance on acyl-CoA donors. The importance of GO:0018030 extends to both basic and translational research. Identifying the enzymes that catalyze this reaction and their substrates could reveal new regulatory nodes in cell signaling and metabolism. Moreover, because lysine modification pathways are implicated in human diseases such as liver fibrosis and Crohn's disease recurrence, targeting N6-myristoyltransferases may offer therapeutic opportunities. This article synthesizes current knowledge from related lysine-modifying systems to outline the mechanisms, key genes, research methods, and disease relevance of peptidyl-lysine N6-myristoyltransferase activity.
peptidyl-lysine N6-myristoyltransferase activity At A Glance
| GO ID | GO:0018030 |
|---|---|
| GO term | peptidyl-lysine N6-myristoyltransferase activity |
| Ontology | molecular_function |
| Synonym | none |
| Major function | Transfer of a myristoyl group to the N6 nitrogen of a lysine residue in a peptide or protein |
| Substrate | Peptidyl-lysine and myristoyl-CoA |
| Product | N6-myristoyl-lysine peptide/protein and CoA |
| Reaction type | Acylation (myristoylation) |
| Cellular context | Intracellular, likely cytoplasmic or membrane-associated |
What Is GO:0018030?
Peptidyl-lysine N6-myristoyltransferase activity (GO:0018030) is the enzymatic catalysis of the transfer of a myristoyl group, a 14-carbon saturated fatty acid, to the N6 nitrogen atom of a lysine residue within a peptide or protein molecule. This reaction modifies the lysine side chain, introducing a hydrophobic moiety that can affect protein function, localization, and interactions. The activity is classified as a molecular_function and is distinct from N-terminal myristoylation, which targets the alpha-amino group of glycine. The definition implies that the enzyme recognizes both a myristoyl donor, typically myristoyl-CoA, and a peptidyl-lysine acceptor. No synonyms are currently listed for this term in QuickGO.
Why Is peptidyl-lysine N6-myristoyltransferase activity Important in Cell Biology?
Peptidyl-lysine N6-myristoyltransferase activity is important because it represents a mechanism for dynamic, reversible or irreversible modification of lysine residues that can alter protein function. Lysine modifications are increasingly recognized as key regulators of cellular processes, and enzymes that catalyze them are potential drug targets. For example, lysyl oxidase, which oxidizes peptidyl lysine, is a critical mediator of fibrosis and cancer progression. Similarly, lysine acetyltransferases modulate bacterial antibiotic resistance and metabolic pathways. Understanding N6-myristoyltransferases could uncover new layers of regulation in health and disease, particularly in conditions where lysine modification pathways are dysregulated, such as liver fibrosis and Crohn's disease.
• Lysine modification is a fundamental post-translational regulatory mechanism affecting protein stability, localization, and interactions.
• Enzymes acting on peptidyl lysine, such as lysyl oxidase, are implicated in fibrosis and cancer, making N6-myristoyltransferases potential therapeutic targets.
• Substrate specificity of lysine-modifying enzymes can be dictated by neighboring acidic residues, as shown for lysyl oxidase, informing enzyme design and inhibitor development.
• Lysine acetylation regulates bacterial antibiotic resistance and anaerobic respiration, suggesting similar roles for other lysine acylations.
• Dysregulation of lysine modification pathways is linked to Crohn's disease recurrence, highlighting the clinical relevance of these enzymes.
• CRISPR screening and knockout models are powerful tools to identify the genes responsible for N6-myristoyltransferase activity and their downstream effects.
• Understanding N6-myristoylation may reveal crosstalk with other lysine modifications, such as acetylation and oxidation, in cellular signaling.
• The hydrophobic myristoyl group can serve as a membrane anchor, potentially affecting protein trafficking and function.
• Targeting lysine-modifying enzymes has proven successful in other contexts, such as lysyl oxidase inhibitors for fibrosis, providing a precedent for N6-myristoyltransferase drug discovery.
• Research on this activity can benefit from machine learning and network analysis approaches used to identify critical pathways in diseases like Crohn's disease.
Molecular Mechanism of peptidyl-lysine N6-myristoyltransferase activity
Substrate Recognition and Binding
In simple terms: The enzyme must first grab onto the target lysine and the myristoyl donor.
The catalytic mechanism begins with the enzyme binding to a peptidyl-lysine substrate and a myristoyl donor, typically myristoyl-CoA. Substrate recognition is influenced by the amino acid sequence surrounding the target lysine. For instance, lysyl oxidase activity toward peptidyl lysine is modulated by vicinal dicarboxylic amino acid residues, indicating that electrostatic interactions play a role in substrate selection. Similarly, N6-myristoyltransferases likely possess a binding pocket that accommodates the lysine side chain and recognizes specific sequence motifs. The enzyme may also interact with the myristoyl-CoA through a conserved acyl-CoA binding domain. This step ensures specificity and prevents random modification of non-target lysines.
Catalytic Transfer of the Myristoyl Group
In simple terms: The enzyme then hands over the myristoyl group to the lysine.
Following substrate binding, the enzyme catalyzes the transfer of the myristoyl group from myristoyl-CoA to the N6 nitrogen of the lysine residue. This reaction likely proceeds via a nucleophilic attack of the lysine epsilon-amino group on the thioester carbonyl of myristoyl-CoA, forming a tetrahedral intermediate and releasing coenzyme A. The mechanism is analogous to other acyltransferases, such as lysine acetyltransferases, which use acetyl-CoA as a donor. The reaction may require a general base to deprotonate the lysine amino group, enhancing its nucleophilicity. The product is an N6-myristoyl-lysine residue within the peptide or protein, which can alter the protein's hydrophobicity and interactions.
Cofactors and Cofactor Requirements
In simple terms: The enzyme needs a helper molecule, usually myristoyl-CoA, to supply the myristoyl group.
The primary cofactor for peptidyl-lysine N6-myristoyltransferase activity is myristoyl-CoA, which serves as the acyl donor. This is consistent with other lysine acyltransferases that utilize acyl-CoA thioesters. Some lysine-modifying enzymes, such as lysyl oxidase, require copper and a quinone cofactor for their oxidative activity. However, N6-myristoyltransferases are expected to be CoA-dependent and may not require metal ions. The availability of myristoyl-CoA, which is synthesized from myristic acid, can regulate the enzyme's activity. Additionally, the local concentration of the peptidyl-lysine substrate and the presence of regulatory proteins may influence catalysis.
Regulation of Enzyme Activity
In simple terms: The enzyme's activity can be turned up or down by other molecules.
The activity of peptidyl-lysine N6-myristoyltransferases is likely regulated at multiple levels. Post-translational modifications of the enzyme itself, such as phosphorylation or acetylation, could modulate its catalytic efficiency. For example, lysine acetylation of metabolic enzymes regulates bacterial physiology. Substrate availability, including the levels of myristoyl-CoA and target proteins, also plays a role. In the context of lysyl oxidase, enzyme activity is regulated by factors such as copper availability and hypoxia. Furthermore, the expression of the enzyme-encoding gene can be controlled transcriptionally. Understanding these regulatory mechanisms is essential for manipulating the pathway experimentally.
Biological Consequences of N6-Myristoylation
In simple terms: Adding a myristoyl group to lysine can change what the protein does and where it goes.
The attachment of a myristoyl group to a lysine residue can have profound effects on protein function. The hydrophobic myristoyl moiety can promote membrane association, similar to N-terminal myristoylation, thereby influencing protein localization and trafficking. It can also affect protein-protein interactions and enzymatic activity. In the case of lysine acetylation, the modification neutralizes the positive charge of lysine, impacting DNA binding and catalytic activity. N6-myristoylation may similarly alter electrostatic properties and introduce steric bulk. These changes can modulate signaling pathways, gene expression, and metabolic processes. Dysregulation of such modifications has been linked to diseases like fibrosis and Crohn's disease, underscoring their biological significance.
Key Genes Involved in GO:0018030 peptidyl-lysine N6-myristoyltransferase activity
The following genes and proteins are implicated in lysine modification pathways and serve as models for understanding peptidyl-lysine N6-myristoyltransferase activity.
| Gene | Major Role | Research Relevance |
|---|---|---|
| LOX | Lysyl oxidase, oxidizes peptidyl lysine in collagen and elastin | Model for lysine-modifying enzymes; implicated in fibrosis and cancer |
| LOXL1 | Lysyl oxidase-like 1, cross-links collagen and elastin | Related to LOX; potential role in connective tissue diseases |
| LOXL2 | Lysyl oxidase-like 2, modifies extracellular matrix | Studied in cancer and fibrosis |
| LOXL3 | Lysyl oxidase-like 3, involved in development | Potential model for lysine oxidation |
| LOXL4 | Lysyl oxidase-like 4, regulates matrix remodeling | Implicated in tumor progression |
| NAT1 | N-alpha-acetyltransferase 1, acetylates N-termini | Model for acyltransferases; not lysine-specific but mechanistically related |
| NAT2 | N-alpha-acetyltransferase 2 | Related to acetylation pathways |
| KAT2A | Lysine acetyltransferase 2A, acetylates lysine | Direct model for lysine acylation; roles in transcription |
| KAT2B | Lysine acetyltransferase 2B | Regulates gene expression via lysine acetylation |
| EP300 | E1A binding protein p300, histone acetyltransferase | Modifies lysine residues; cancer relevance |
| CREBBP | CREB binding protein, acetylates lysines | Similar to EP300; involved in development |
| NarL | E. coli response regulator, acetylated at K188/K192 | Model for lysine acetylation regulating anaerobic respiration |
| Acetyl-CoA synthetase | Produces acetyl-CoA for acetylation | Provides donor for lysine acetylation |
| SIRT1 | NAD-dependent deacetylase, removes acetyl groups from lysine | Regulates lysine acetylation; potential crosstalk with myristoylation |
| HDAC1 | Histone deacetylase 1, removes acetyl groups | Modulates lysine modification status |
| MYR1 | Putative myristoyltransferase (hypothetical) | Predicted based on GO:0018030; requires experimental validation |
| MYR2 | Putative myristoyltransferase (hypothetical) | Candidate for N6-myristoylation; not yet characterized |
How Is peptidyl-lysine N6-myristoyltransferase activity Regulated?
The regulation of peptidyl-lysine N6-myristoyltransferase activity is not well characterized, but insights from related lysine-modifying enzymes suggest multiple layers of control. The availability of myristoyl-CoA, the acyl donor, is a key determinant; its synthesis is regulated by fatty acid metabolism. Enzyme expression can be controlled transcriptionally, as seen for lysyl oxidase in response to hypoxia and cytokines. Post-translational modifications of the enzyme, such as phosphorylation or acetylation, may alter its activity, analogous to the regulation of lysine acetyltransferases. Additionally, the presence of substrate proteins and interacting partners can modulate activity. In bacteria, lysine acetylation of NarL regulates anaerobic nitrate respiration, demonstrating how modification of a single lysine can control a complex process. These principles likely apply to N6-myristoyltransferases, but direct evidence is needed.
peptidyl-lysine N6-myristoyltransferase activity and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| LOX | Liver fibrosis, cancer metastasis | Lox knockout mice; hepatic stellate cell lines |
| LOXL2 | Pulmonary fibrosis, tumor progression | LOXL2 overexpression in fibroblasts; xenograft models |
| NarL | Bacterial anaerobic respiration, antibiotic resistance | E. coli narL point mutants (K188R, K192R) |
| EP300 | Cancer, developmental disorders | EP300 knockout cancer cell lines; CRISPR point mutations |
| MYR1 (putative) | Unknown; predicted lysine myristoylation | CRISPR knockout in HEK293; myristoylation assays |
Fibrosis and Extracellular Matrix Remodeling
Lysine-modifying enzymes such as lysyl oxidase are critically involved in fibrosis by cross-linking collagen and elastin. Lysyl oxidase activity toward peptidyl lysine is essential for matrix stabilization, and its dysregulation leads to pathological fibrosis in liver and lung. Cigarette smoke exposure alters lysyl oxidase activity, contributing to lung pathogenesis. Although N6-myristoyltransferases have not been directly linked to fibrosis, the shared substrate specificity for peptidyl lysine suggests that they could influence matrix protein function. Investigating N6-myristoylation in fibrosis models may reveal new therapeutic targets.
Cancer Progression and Metastasis
Lysine modification pathways are frequently hijacked in cancer. Lysyl oxidase promotes tumor progression by remodeling the extracellular matrix and facilitating metastasis. Similarly, lysine acetyltransferases such as EP300 and CREBBP are mutated or dysregulated in various cancers, affecting gene expression. N6-myristoyltransferases could potentially modify oncoproteins or tumor suppressors, altering their activity or localization. The hydrophobic myristoyl group might enhance membrane association of signaling proteins, a common oncogenic mechanism. Thus, targeting N6-myristoylation could be a novel anticancer strategy, though direct evidence is currently lacking.
Inflammatory and Infectious Diseases
Lysine acetylation regulates bacterial virulence and antibiotic resistance. For example, acetylation of NarL at K188 and K192 controls anaerobic nitrate respiration in Escherichia coli, and lysine acetylation is involved in antibiotic resistance. These findings suggest that N6-myristoylation could similarly modulate bacterial proteins, potentially affecting pathogenesis. In Crohn's disease, a chronic inflammatory condition, machine learning and WGCNA analyses have identified critical pathways and genes, some of which may involve lysine modification. Understanding the role of N6-myristoyltransferases in inflammation and infection could lead to new interventions.
Metabolic and Neurological Disorders
Lysine modification enzymes are emerging as regulators of metabolism. Lysyl oxidase is linked to liver fibrosis, a metabolic complication. Acetylation of metabolic enzymes controls flux through pathways such as the TCA cycle. N6-myristoylation might influence metabolic enzymes by altering their membrane association or activity. In neurological disorders, protein myristoylation is known to affect neuronal signaling, but the role of lysine-specific myristoylation is unexplored. Future studies should investigate whether N6-myristoyltransferases contribute to metabolic and neurodegenerative diseases.
From peptidyl-lysine N6-myristoyltransferase activity-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Does gene X encode a peptidyl-lysine N6-myristoyltransferase? | CRISPR knockout of candidate gene followed by myristoylation assay |
| Which lysine residues are myristoylated? | Point mutation of lysine to arginine (K-to-R) via CRISPR |
| What is the effect of a disease-associated mutation on enzyme activity? | Knock-in of mutant allele using CRISPR |
| Where does the enzyme localize in the cell? | Tagged knock-in with fluorescent protein (e.g., GFP) |
| Does overexpression of the enzyme alter phenotype? | CRISPR activation or cDNA overexpression |
| Can we identify substrates of the enzyme? | Proteomics with myristoyl-lysine enrichment in knockout vs. wild-type cells |
How to Study the peptidyl-lysine N6-myristoyltransferase activity Process
| Method | What It Measures | Typical Application |
|---|---|---|
| In vitro myristoyltransferase assay | Enzymatic transfer of myristoyl group to peptide | Validation of candidate enzymes |
| LC-MS/MS proteomics | Identification and quantification of myristoylated lysine sites | Mapping substrate repertoire |
| CRISPR knockout screen | Genes required for myristoylation reporter activity | Discovery of novel enzymes |
| Fluorescence microscopy | Subcellular localization of enzyme and substrate | Determining site of action |
| Western blot with anti-myristoyl-lysine antibody | Levels of N6-myristoylated proteins | Monitoring changes upon treatment |
| Site-directed mutagenesis (K-to-R) | Effect of specific lysine on function | Identifying modified residues |
| Co-immunoprecipitation | Protein-protein interactions of the enzyme | Finding regulatory partners |
| RNA-seq | Transcriptional changes upon enzyme knockout | Pathway analysis |
Enzymatic Assays for Myristoyltransferase Activity
Direct measurement of peptidyl-lysine N6-myristoyltransferase activity can be performed using synthetic peptide substrates containing a target lysine and radiolabeled or fluorescent myristoyl-CoA. The transfer of the myristoyl group to the peptide is quantified by scintillation counting or fluorescence polarization. Such assays have been used to characterize lysyl oxidase activity toward peptidyl lysine, where the oxidative deamination of lysine is monitored. For N6-myristoyltransferases, the reaction can be terminated and products analyzed by mass spectrometry to confirm the specific modification. These assays are essential for validating candidate enzymes identified through genomic or proteomic screens.
Mass Spectrometry-Based Proteomics
Mass spectrometry is a powerful tool to identify proteins bearing N6-myristoyl-lysine modifications. Enrichment of myristoylated peptides using antibodies specific to the myristoyl-lysine moiety, followed by LC-MS/MS, can reveal the substrate repertoire. Similar approaches have been used to map lysine acetylation sites in bacteria, uncovering modifications on metabolic enzymes and regulators. For N6-myristoylation, a myristoyl-lysine-specific antibody would be required, or chemical probes that click with the myristoyl group. Proteomics can also quantify changes in modification levels upon enzyme knockout or overexpression, providing insights into regulatory networks.
CRISPR Screening and Functional Genomics
CRISPR-based loss-of-function screens can identify genes required for peptidyl-lysine N6-myristoyltransferase activity. By using a reporter system that detects myristoylation of a specific substrate, researchers can screen a genome-wide sgRNA library to find enzymes or regulators. This approach has been successful in identifying genes involved in antibiotic resistance and metabolic pathways. In the context of N6-myristoylation, a reporter could consist of a lysine-containing peptide fused to a fluorescent protein, where myristoylation alters localization or stability. Hits from the screen can then be validated by targeted knockout and biochemical assays.
Imaging and Subcellular Localization
Fluorescence microscopy can visualize the subcellular localization of N6-myristoyltransferases and their substrates. Tagging the enzyme with a fluorescent protein via CRISPR knock-in allows live-cell imaging to track its distribution. The myristoyl group itself can be detected using fluorescent myristic acid analogs that are incorporated into proteins and then conjugated to a fluorophore via click chemistry. This technique has been used to study protein myristoylation dynamics. Co-localization with organelle markers can reveal whether the enzyme acts in the cytoplasm, on membranes, or in specific compartments. Such imaging studies complement biochemical assays and provide spatial context.
How CRISPR Can Be Used to Study GO:0018030 peptidyl-lysine N6-myristoyltransferase activity
Knockout
CRISPR knockout of a candidate peptidyl-lysine N6-myristoyltransferase gene is the most direct way to test its function. By generating indels that disrupt the coding sequence, researchers can create cell lines or animal models lacking the enzyme. These models can then be assayed for loss of myristoylation on target proteins using mass spectrometry or specific antibodies. Knockout studies of lysine-modifying enzymes such as lysyl oxidase have revealed essential roles in development and disease. For N6-myristoyltransferases, knockout phenotypes can uncover the biological processes they regulate. EDITGENE provides custom knockout cell models in various backgrounds to accelerate this research.
Point Mutation
Point mutations, particularly lysine-to-arginine (K-to-R) substitutions, are invaluable for studying the specific lysine residue that is myristoylated. CRISPR-mediated point mutation can introduce these changes at the endogenous locus, preserving physiological expression levels. This approach has been used to dissect the role of lysine acetylation in bacterial proteins, such as NarL K188 and K192. For N6-myristoyltransferases, mutating the catalytic residues or the target lysine can reveal mechanism and function. EDITGENE offers precise point-mutation services to generate such models efficiently.
Knock-in
Knock-in strategies allow the addition of tags or reporter genes to the endogenous locus of a peptidyl-lysine N6-myristoyltransferase. For example, a fluorescent tag (e.g., GFP) can be inserted to visualize the enzyme's localization and dynamics in live cells. Alternatively, an affinity tag (e.g., FLAG) can facilitate purification and interaction studies. Knock-in of disease-associated mutations can also model human pathologies. These approaches have been used for lysyl oxidase and other lysine-modifying enzymes to understand their trafficking and regulation. EDITGENE provides tagged knock-in and mutation knock-in services for such studies.
Overexpression
Overexpression of a peptidyl-lysine N6-myristoyltransferase can be achieved by introducing a cDNA under a strong promoter or by CRISPR activation (CRISPRa). This approach is useful to study gain-of-function effects, identify downstream targets, and produce sufficient enzyme for biochemical assays. Overexpression of lysine acetyltransferases like EP300 has been used to study their role in cancer. For N6-myristoyltransferases, overexpression can reveal whether increased myristoylation alters cell proliferation, migration, or signaling. EDITGENE offers overexpression cell models and CRISPRa services to enable these experiments.
How EDITGENE Supports peptidyl-lysine N6-myristoyltransferase activity Research
Researchers studying peptidyl-lysine N6-myristoyltransferase activity-related genes often need to determine whether a candidate gene is causally involved in the modification, what substrates it targets, and how its dysregulation contributes to disease. EDITGENE provides a comprehensive suite of CRISPR-based services to address these questions, from knockout and point mutation to knock-in and overexpression, along with library screening and bioinformatics support.
Contact EDITGENE today to design your custom CRISPR model for peptidyl-lysine N6-myristoyltransferase activity research.
Frequently Asked Questions About peptidyl-lysine N6-myristoyltransferase activity
What is peptidyl-lysine N6-myristoyltransferase activity?
It is a molecular function (GO:0018030) that catalyzes the transfer of a myristoyl group to the N6 nitrogen atom of a lysine residue in a peptide or protein.
What genes are involved in peptidyl-lysine N6-myristoyltransferase activity?
No specific genes have been definitively linked to this activity yet, but related lysine-modifying enzymes include LOX, LOXL1-4, KAT2A, EP300, and CREBBP.
What is the difference between N6-myristoylation and N-terminal myristoylation?
N6-myristoylation modifies the side chain of lysine, while N-terminal myristoylation modifies the alpha-amino group of glycine; they are distinct enzymatic activities.
How can I study peptidyl-lysine N6-myristoyltransferase activity?
You can use in vitro enzymatic assays with myristoyl-CoA and peptide substrates, mass spectrometry to detect modified lysines, and CRISPR knockout models to test gene function.
Is peptidyl-lysine N6-myristoyltransferase activity involved in disease?
It is not yet directly linked to disease, but related lysine modification pathways are implicated in fibrosis, cancer, and inflammatory diseases.
What are the substrates of peptidyl-lysine N6-myristoyltransferase?
The substrates are peptides or proteins containing a target lysine residue; specific substrates have not been identified but may include signaling proteins and metabolic enzymes.
Which diseases are associated with lysine modification enzymes?
Lysyl oxidase is linked to liver and lung fibrosis, while lysine acetyltransferases are involved in cancer and bacterial antibiotic resistance.
How does CRISPR help in studying peptidyl-lysine N6-myristoyltransferase activity?
CRISPR knockout, point mutation, and knock-in models allow researchers to test the function of candidate genes and specific lysine residues in myristoylation.
What model systems are used to study lysine myristoylation?
Common models include HEK293 and HeLa cell lines for overexpression and knockout, as well as bacterial systems like E. coli for acetylation studies.
Can EDITGENE help create custom CRISPR models for my gene of interest?
Yes, EDITGENE provides knockout, point mutation, knock-in, overexpression, and library screening services tailored to your research needs.
Conclusion
Peptidyl-lysine N6-myristoyltransferase activity (GO:0018030) represents a specialized lysine modification with potential broad implications for protein function and disease. While direct studies are limited, insights from related enzymes such as lysyl oxidase and lysine acetyltransferases provide a framework for understanding its mechanism, regulation, and biological roles. The involvement of lysine modifications in fibrosis, cancer, and infectious diseases underscores the importance of identifying the enzymes responsible for N6-myristoylation and their substrates. Future research should leverage CRISPR-based models and advanced proteomics to uncover the genes and pathways associated with this activity. EDITGENE's services can accelerate these efforts by providing custom knockout, knock-in, and overexpression cell models, as well as screening and bioinformatics support. Ultimately, a deeper understanding of N6-myristoyltransferases may open new avenues for therapeutic intervention in human diseases.
References
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