GO:0015728 mevalonate transport: Metabolic Pathway, Genes, Functions and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:0015728 mevalonate transport describes the directed movement of mevalonate into, out of, or within a cell by transporters or pores.
• Mevalonate is a central intermediate in the mevalonate pathway, which produces cholesterol, prenyl groups, and other isoprenoids.
• Transport of mevalonate is essential for supplying substrates for sterol synthesis and protein prenylation in eukaryotic cells.
• In bacteria such as Pseudomonas sp. strain M, mevalonate transport is mediated by specific transport systems that can be studied genetically.
• Dysregulated mevalonate transport and metabolism contribute to diseases including retinitis pigmentosa, Behçet's disease, and pancreatic cancer.
• CRISPR-based models (knockout, knock-in, overexpression) enable functional dissection of mevalonate transport genes in health and disease.
Description
Mevalonate transport (GO:0015728) is a biological process defined as the directed movement of mevalonate into, out of, or within a cell, or between cells, by means of some agent such as a transporter or pore. Mevalonate is a key intermediate in the mevalonate pathway, which is responsible for the biosynthesis of cholesterol, prenylated proteins, and other essential isoprenoids. Understanding how mevalonate is transported is critical because its availability and distribution affect downstream metabolic and signaling events. In eukaryotic cells, mevalonate metabolites can influence aging and immunity, as shown by studies where mevalonate metabolites boost aged oocyte quality through prenylation of small GTPases and where a metabolic alarmin from keratinocytes potentiates systemic humoral immunity. In bacteria, mevalonate transport has been studied in Pseudomonas sp. strain M, revealing specific transport mechanisms. The importance of mevalonate transport extends to clinical contexts: dysregulation of mevalonate metabolism is linked to retinitis pigmentosa, Behçet's disease, and pancreatic cancer. Moreover, flavonoid-statin interactions causing myopathy may involve OATP transport and mevalonate synthesis, highlighting the pharmacological relevance of mevalonate transport. This article provides a research-grade overview of GO:0015728, covering its definition, mechanisms, key genes, disease associations, and experimental approaches for studying it.
mevalonate transport At A Glance
| GO ID | GO:0015728 |
|---|---|
| GO term | mevalonate transport |
| Ontology | biological_process |
| Synonym | none |
| Major function | Directed movement of mevalonate across cellular membranes via transporters or pores |
| Related pathway | Mevalonate pathway (cholesterol biosynthesis, prenylation) |
| Organisms studied | Pseudomonas sp. strain M, eukaryotic cells (e.g., oocytes, keratinocytes, neutrophils) |
| Disease relevance | Retinitis pigmentosa, Behçet's disease, pancreatic cancer, statin-induced myopathy |
| Research methods | Genetic knockout, transport assays, metabolomics, CRISPR screens |
What Is GO:0015728?
According to the Gene Ontology, mevalonate transport (GO:0015728) is the directed movement of mevalonate into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore. This process encompasses the translocation of mevalonate across biological membranes, which is essential for its utilization in metabolic pathways. The definition does not specify particular transporters or organisms, reflecting a broad functional category that can be applied to prokaryotes and eukaryotes alike.
Why Is mevalonate transport Important in Cell Biology?
Mevalonate transport is important because mevalonate is a rate-limiting intermediate in the mevalonate pathway, which supplies precursors for cholesterol, steroid hormones, and prenyl groups required for protein prenylation. Proper transport ensures that mevalonate reaches the appropriate cellular compartments for these biosynthetic processes. Disruptions in mevalonate transport or metabolism can lead to a variety of pathological conditions, including retinal degeneration, autoimmune vasculitis, and cancer. Furthermore, pharmacological interventions such as statins, which target the mevalonate pathway, can interact with transport mechanisms, leading to adverse effects like myopathy. Therefore, understanding mevalonate transport is crucial for both basic cell biology and therapeutic development.
• Mevalonate transport supplies the substrate for cholesterol synthesis, a fundamental component of cell membranes.
• It enables protein prenylation, which is critical for the function of small GTPases involved in cell signaling and aging.
• Defects in mevalonate transport or metabolism are associated with retinitis pigmentosa, a group of inherited retinal dystrophies.
• Mevalonate metabolites can act as alarmins to potentiate systemic humoral immunity, linking transport to immune responses.
• In Behçet's disease, TNF inhibitors target a mevalonate metabolite/TRPM2/calcium signaling axis in neutrophils, highlighting therapeutic implications.
• Flavonoid-statin interactions causing myopathy may involve OATP transport and mevalonate synthesis, underscoring drug-transport interactions.
• Bacterial mevalonate transport, as studied in Pseudomonas sp. strain M, provides insights into microbial isoprenoid biosynthesis.
• Engineered yeast producing artemisinic acid relies on the mevalonate pathway, where transport of intermediates can affect yield.
• Cholesterol metabolism, including mevalonate transport, is reprogrammed in pancreatic cancer, offering potential targets.
• CRISPR-based genetic models allow precise dissection of mevalonate transport genes in disease contexts.
What Happens During mevalonate transport?
Uptake of mevalonate into cells
In simple terms: Cells take in mevalonate from their surroundings.
In many organisms, mevalonate must be imported from the extracellular environment or from neighboring cells. In Pseudomonas sp. strain M, a specific transport system mediates the uptake of mevalonate, which is then used for isoprenoid biosynthesis. In eukaryotic cells, mevalonate produced endogenously can also be exported and re-imported, but the exact transporters remain to be fully characterized. The uptake process is energy-dependent and can be regulated by metabolic needs.
Intracellular transport and compartmentalization
In simple terms: Inside the cell, mevalonate moves to where it is needed.
Once inside the cell, mevalonate is directed to various compartments. In eukaryotes, the mevalonate pathway enzymes are primarily cytosolic or peroxisomal, and mevalonate must reach these sites. Transport within the cell may involve vesicular trafficking or membrane contact sites, although specific mechanisms are not fully defined. Mevalonate metabolites can influence nuclear processes, as seen in aged oocytes where mevalonate metabolites boost quality through prenylation of small GTPases.
Export of mevalonate and derivatives
In simple terms: Cells can also send mevalonate out.
Mevalonate and its derivatives can be exported from cells, potentially acting as signaling molecules. For example, a metabolic alarmin from keratinocytes, likely a mevalonate metabolite, potentiates systemic humoral immunity. This suggests that export of mevalonate-related compounds is important for intercellular communication. The transporters involved in export are not well characterized but may include ABC transporters or other membrane proteins.
Regulation of mevalonate transport
In simple terms: The movement of mevalonate is controlled by cellular signals.
Mevalonate transport is likely regulated in response to cellular demand for cholesterol and isoprenoids. In Behçet's disease, TNF inhibitors target a mevalonate metabolite/TRPM2/calcium signaling axis in neutrophils, indicating that inflammatory signals can modulate mevalonate metabolism and possibly transport. Additionally, flavonoid-statin interactions affecting OATP transport suggest that drug transporters can influence mevalonate availability. However, direct regulation of mevalonate transport proteins remains an active area of research.
Key Genes Involved in GO:0015728 mevalonate transport
The following genes and proteins are implicated in mevalonate transport or related metabolic processes, based on published literature.
| Gene | Major Role | Research Relevance |
|---|---|---|
| HMGCR | Rate-limiting enzyme in mevalonate pathway | Target of statins; affects mevalonate synthesis and downstream transport |
| MVK | Mevalonate kinase, phosphorylates mevalonate | Mutations cause mevalonate kinase deficiency; affects pathway flux |
| PMVK | Phosphomevalonate kinase | Catalyzes second phosphorylation in mevalonate pathway |
| MVD | Mevalonate diphosphate decarboxylase | Final enzyme in mevalonate pathway producing IPP |
| FDPS | Farnesyl diphosphate synthase | Produces prenyl groups for protein prenylation |
| GGPS1 | Geranylgeranyl diphosphate synthase | Synthesizes geranylgeranyl pyrophosphate for prenylation |
| RAB | Small GTPase, prenylated | Prenylation of RAB requires mevalonate metabolites |
| RHO | Small GTPase, prenylated | Prenylation of RHO affects cell signaling |
| TRPM2 | Calcium channel | Mevalonate metabolite/TRPM2 axis in neutrophils |
| OATP | Organic anion transporting polypeptide | Transports statins and possibly mevalonate-related compounds |
| CYP450 | Cytochrome P450 enzymes | Metabolize statins, interacting with mevalonate pathway |
| TNF | Tumor necrosis factor | Inhibitors target mevalonate metabolite axis in Behçet's disease |
| SREBP | Sterol regulatory element-binding protein | Regulates expression of mevalonate pathway genes |
| Insig | Insulin-induced gene | Regulates SREBP and cholesterol synthesis |
| LDLR | Low-density lipoprotein receptor | Mediates cholesterol uptake, feedback to mevalonate pathway |
| ABCA1 | ATP-binding cassette transporter A1 | Cholesterol efflux, may influence mevalonate transport |
| Pseudomonas transport protein | Mevalonate uptake in Pseudomonas sp. strain M | Model for bacterial mevalonate transport |
How Is mevalonate transport Regulated?
Mevalonate transport is regulated at multiple levels. Transcriptional regulation of mevalonate pathway genes is controlled by SREBP transcription factors in response to cellular sterol levels. Post-translational regulation of transporters may occur, but specific mechanisms are not well defined. Inflammatory signals such as TNF can modulate mevalonate metabolism, as shown in Behçet's disease where TNF inhibitors target a mevalonate metabolite/TRPM2/calcium signaling axis. Additionally, drug transporters like OATP can influence the availability of mevalonate-related compounds, as seen in flavonoid-statin interactions. However, direct regulation of mevalonate transport proteins remains an area requiring further investigation.
mevalonate transport and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| HMGCR | Statin-induced myopathy | Knockout or point mutation in cell lines; transport assays |
| MVK | Mevalonate kinase deficiency | Knock-in of patient mutations; metabolomics |
| TRPM2 | Behçet's disease | Knockout neutrophils; calcium imaging |
| RAB | Aging oocyte quality | Overexpression of prenylation-deficient mutants; oocyte maturation assays |
| OATP | Flavonoid-statin interaction | Knockout or overexpression in hepatocytes; drug transport assays |
Mevalonate transport in retinal degeneration
Nonsyndromic retinitis pigmentosa is a group of inherited retinal dystrophies that can be caused by mutations in genes involved in lipid metabolism, including those affecting the mevalonate pathway. Although direct links between mevalonate transport and retinitis pigmentosa are not fully established, the importance of mevalonate metabolites in retinal cell function suggests that transport defects could contribute to disease. Further research is needed to determine if mevalonate transporters are mutated in retinitis pigmentosa.
Mevalonate metabolites and autoimmune vasculitis
In Behçet's disease, a systemic vasculitis, TNF inhibitors target a mevalonate metabolite/TRPM2/calcium signaling axis in neutrophils to dampen inflammation. This suggests that mevalonate metabolites, whose availability depends on transport, play a role in neutrophil activation and disease pathogenesis. Modulating mevalonate transport could therefore be a therapeutic strategy, though specific transporters remain to be identified.
Cholesterol metabolism and pancreatic cancer
Pancreatic cancer cells exhibit altered cholesterol metabolism, including upregulation of the mevalonate pathway. Mevalonate transport may be critical for supplying substrates for cholesterol synthesis and protein prenylation, which support cancer cell growth and survival. Targeting mevalonate transport could potentially complement existing therapies, but further studies are required to identify the relevant transporters in pancreatic cancer.
Statin-induced myopathy and transport interactions
Statins, which inhibit HMGCR in the mevalonate pathway, can cause myopathy. Flavonoid-statin interactions may exacerbate this by affecting OATP transport and mevalonate synthesis. This highlights the importance of transport mechanisms in drug efficacy and toxicity. Understanding how mevalonate and statins are transported could lead to safer therapeutic regimens.
From mevalonate transport-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Does gene X transport mevalonate? | Knockout cell lines; transport assays with radiolabeled mevalonate |
| What is the effect of a point mutation in a transporter? | Point mutation knock-in using CRISPR |
| Can overexpression of a transporter increase mevalonate uptake? | Overexpression cell models; metabolomics |
| How does mevalonate transport affect protein prenylation? | Tagged knock-in of prenylation substrates; imaging |
| What is the role of mevalonate transport in immune signaling? | Knockout mice or cells; cytokine profiling |
| Can CRISPR screening identify novel mevalonate transporters? | Genome-wide CRISPR library screening |
How to Study the mevalonate transport Process
| Method | What It Measures | Typical Application |
|---|---|---|
| Radiolabeled mevalonate uptake | Transport rate and kinetics | Characterization of transporters in bacteria and mammalian cells |
| LC-MS metabolomics | Mevalonate and isoprenoid levels | Pathway flux analysis in disease models |
| CRISPR knockout screening | Genes affecting mevalonate sensitivity | Identification of novel transport regulators |
| RNA-seq | Expression of mevalonate pathway genes | Transcriptional response to statins or inflammation |
| Proteomics | Protein prenylation status | Assessment of mevalonate availability |
| Fluorescence microscopy | Subcellular localization of transporters | Trafficking studies |
| Calcium imaging | TRPM2 channel activity | Mevalonate metabolite signaling in neutrophils |
| Yeast engineering | Artemisinic acid production | Optimization of mevalonate pathway flux |
Transport assays
Direct measurement of mevalonate transport can be performed using radiolabeled mevalonate (e.g., 14C-mevalonate) in uptake assays with cells or membrane vesicles. This method allows determination of transport kinetics and specificity.
Metabolomics and flux analysis
Metabolomic profiling can quantify mevalonate and its downstream metabolites, providing insights into pathway flux and the impact of transport perturbations. Stable isotope tracing can further elucidate metabolic routing.
CRISPR screening
Genome-wide CRISPR knockout or activation screens can identify genes that affect mevalonate transport or sensitivity to mevalonate pathway inhibitors. Such screens have been used to uncover metabolic vulnerabilities in cancer.
Imaging and reporter assays
Fluorescent or luminescent reporters can monitor mevalonate levels or transport activity in live cells. For example, prenylation reporters can indicate mevalonate availability.
How CRISPR Can Be Used to Study GO:0015728 mevalonate transport
Knockout
CRISPR knockout of candidate mevalonate transporter genes can abolish transport activity, leading to reduced mevalonate uptake and downstream metabolite depletion. Such models are valuable for confirming gene function and studying metabolic consequences.
Point Mutation
Introducing specific point mutations in transporter genes via CRISPR can mimic human polymorphisms or disease-associated variants, allowing assessment of their impact on transport kinetics and cellular metabolism.
Knock-in
Knock-in of tagged transporters (e.g., GFP or HA) enables visualization and immunoprecipitation, facilitating studies of localization, interaction partners, and regulation.
Overexpression
CRISPR activation (CRISPRa) or cDNA overexpression can increase transporter levels, enhancing mevalonate uptake and allowing gain-of-function studies. This is useful for biotechnological applications such as artemisinic acid production in yeast.
How EDITGENE Supports mevalonate transport Research
Researchers studying mevalonate transport-related genes often need to determine whether a candidate gene is causally involved in mevalonate uptake, export, or intracellular distribution. EDITGENE provides comprehensive CRISPR-based services to generate precisely engineered cell models, enabling functional validation and mechanistic studies.
Contact EDITGENE today to design your custom CRISPR model for mevalonate transport research.
Frequently Asked Questions About mevalonate transport
What is mevalonate transport?
Mevalonate transport (GO:0015728) is the directed movement of mevalonate into, out of, or within a cell, or between cells, by means of a transporter or pore.
What genes are involved in mevalonate transport?
Genes encoding transporters such as OATP family members, as well as metabolic enzymes like HMGCR, MVK, and MVD, are involved in mevalonate transport and metabolism.
How is mevalonate transported across membranes?
Mevalonate is transported by specific membrane proteins, such as the transport system in Pseudomonas sp. strain M, and potentially by OATP transporters in mammalian cells.
What is the role of mevalonate transport in disease?
Dysregulated mevalonate transport may contribute to retinitis pigmentosa, Behçet's disease, pancreatic cancer, and statin-induced myopathy.
Can CRISPR be used to study mevalonate transport?
Yes, CRISPR knockout, knock-in, and overexpression models enable functional studies of mevalonate transporters and their role in metabolism and disease.
What methods are used to measure mevalonate transport?
Radiolabeled uptake assays, LC-MS metabolomics, and CRISPR screens are commonly used to measure and study mevalonate transport.
Is mevalonate transport conserved across species?
Mevalonate transport has been studied in bacteria and eukaryotes, suggesting conservation of the process, though specific transporters may differ.
How does mevalonate transport affect protein prenylation?
Mevalonate transport supplies mevalonate for synthesis of prenyl groups (farnesyl and geranylgeranyl), which are required for prenylation of small GTPases.
What is the connection between mevalonate transport and statins?
Statins inhibit HMGCR, reducing mevalonate synthesis; transport of mevalonate and statins via OATP can influence drug efficacy and myopathy risk.
Where can I find CRISPR models for mevalonate transport research?
EDITGENE provides custom CRISPR knockout, knock-in, overexpression, and library screening services for genes involved in mevalonate transport.
Conclusion
Mevalonate transport (GO:0015728) is a fundamental biological process that ensures the proper distribution of mevalonate, a key metabolite in the mevalonate pathway. Its importance spans basic cell biology, immunology, aging, and cancer, with implications for diseases such as retinitis pigmentosa, Behçet's disease, and pancreatic cancer. Despite its significance, the molecular identity of mevalonate transporters in many organisms remains incompletely understood, offering opportunities for discovery. Advances in CRISPR-based genetic models and metabolomic technologies will accelerate research in this area. EDITGENE is committed to supporting these efforts by providing tailored CRISPR services to elucidate the roles of mevalonate transport genes in health and disease.
References
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- 4. Zhang M et al.. 2024. TNF inhibitors target a mevalonate metabolite/TRPM2/calcium signaling axis in neutrophils to dampen vasculitis in Behçet's disease.. Nat Commun 15(1):9261 PMID: 39461948
- 5. Zechner J et al.. 2022. Flavonoid-statin interactions causing myopathy and the possible significance of OATP transport, CYP450 metabolism and mevalonate synthesis.. Life Sci 291:119975 PMID: 34560084
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- 7. Ro DK et al.. 2006. Production of the antimalarial drug precursor artemisinic acid in engineered yeast.. Nature 440(7086):940-3 PMID: 16612385
- 8. Rebelo A et al.. 2023. Cholesterol Metabolism in Pancreatic Cancer.. Cancers (Basel) 15(21) PMID: 37958351
