GO:1904775 positive regulation of ubiquinone biosynthetic process: CoQ Biosynthesis Pathway, Genes, Functions and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:1904775 describes any process that increases the frequency, rate or extent of ubiquinone (coenzyme Q, CoQ) biosynthesis, a lipid-soluble electron carrier essential for mitochondrial respiration and antioxidant defense.
• CoQ biosynthesis is a multi-step pathway requiring a large set of COQ genes and accessory factors; its positive regulation is critical for maintaining cellular redox homeostasis and mitochondrial function [1,3].
• Loss of CoQ biosynthesis regulation is linked to ferroptosis sensitivity, metabolic liver disorders, and age-related cognitive decline [1,2,5].
• The CoQ oxidoreductase FSP1 acts parallel to GPX4 to inhibit ferroptosis, directly connecting positive regulation of ubiquinone biosynthesis to cell death control.
• CoQ imbalance drives reverse electron transport and disrupts liver metabolism, highlighting the physiological importance of tight regulation of this process.
• CRISPR knockout, point-mutation, knock-in, and overexpression models are powerful tools to dissect the causal roles of genes that positively regulate ubiquinone biosynthesis [1,3,8].
Description
Ubiquinone, also known as coenzyme Q (CoQ), is a lipid-soluble benzoquinone that functions as an essential electron carrier in the mitochondrial respiratory chain and as a potent lipophilic antioxidant. The biosynthetic process that produces ubiquinone is highly conserved from bacteria to humans and involves a dedicated set of COQ genes and accessory proteins [1,3]. GO:1904775, positive regulation of ubiquinone biosynthetic process, refers to any process that activates or increases the frequency, rate or extent of ubiquinone biosynthesis. Understanding this regulatory term is crucial because CoQ levels must be tightly controlled to support mitochondrial bioenergetics, protect against oxidative stress, and prevent ferroptosis, a form of iron-dependent cell death. Dysregulation of CoQ biosynthesis has been implicated in a wide range of human pathologies, including cardiovascular disease, metabolic liver disorders, and neurodegeneration [2,3,5]. For researchers, GO:1904775 provides a framework to study how upstream signaling pathways, transcription factors, and metabolic cues converge to boost CoQ production, and how this regulation can be harnessed for therapeutic benefit [1,3,5].
positive regulation of ubiquinone biosynthetic process At A Glance
| GO ID | GO:1904775 |
|---|---|
| GO term | positive regulation of ubiquinone biosynthetic process |
| Ontology | biological_process |
| Synonym | activation of coenzyme Q10 biosynthesis; positive regulation of coenzyme Q biosynthesis; upregulation of ubiquinone biosynthesis; activation of ubiquinone formation |
| Major function | Increases the rate or extent of ubiquinone (coenzyme Q) biosynthesis, supporting mitochondrial respiration and antioxidant defense. |
| Related processes | Ubiquinone biosynthetic process (GO:0006744); regulation of ubiquinone biosynthetic process (GO:1904774); ferroptosis (GO:0097707). |
| Key genes | COQ2, COQ3, COQ4, COQ5, COQ6, COQ7, COQ8A, COQ8B, COQ9, COQ10A, COQ10B, PDSS1, PDSS2, FSP1 (AIFM2) [1,3]. |
| Disease relevance | CoQ10 deficiency, mitochondrial disorders, ferroptosis-related diseases, metabolic liver disease, cardiovascular disease, neurodegeneration [1,2,3,5]. |
What Is GO:1904775?
GO:1904775 is a Gene Ontology biological process term defined as any process that activates or increases the frequency, rate or extent of ubiquinone biosynthetic process. In other words, it encompasses all molecular events and pathways that positively regulate the production of ubiquinone (coenzyme Q), including transcriptional activation of COQ genes, post-translational modification of CoQ biosynthetic enzymes, and metabolic feedback that enhances flux through the pathway [1,3].
Why Is positive regulation of ubiquinone biosynthetic process Important in Cell Biology?
Positive regulation of ubiquinone biosynthesis is fundamentally important because ubiquinone is indispensable for mitochondrial electron transport, cellular antioxidant capacity, and the prevention of ferroptosis. CoQ levels decline with age and in various diseases, and boosting its biosynthesis genetically or pharmacologically can protect cells from oxidative damage and metabolic stress [1,3,5]. Moreover, the discovery that FSP1 acts as a CoQ oxidoreductase to inhibit ferroptosis has placed CoQ biosynthesis regulation at the center of cell death research. Understanding how this process is positively regulated offers therapeutic opportunities for mitochondrial diseases, cardiovascular disorders, and neurodegeneration [2,3,5].
• Ubiquinone is essential for mitochondrial respiratory chain function and ATP production.
• CoQ acts as a lipophilic antioxidant, protecting membranes from lipid peroxidation.
• Positive regulation of CoQ biosynthesis suppresses ferroptosis via FSP1.
• CoQ10 supplementation mitigates macrophage-mediated inflammation after myocardial infarction.
• CoQ imbalance drives reverse electron transport and disrupts liver metabolism.
• Physioxia rewires mitochondrial complex composition and may influence CoQ demand.
• CoQ10 status is linked to cognitive function and neurodegeneration.
• Mycobacterial respiratory complex I structure reveals conservation of CoQ binding.
• Mitochondrial uncoupling proteins are regulated in a conserved manner that intersects with CoQ.
• NDUFA4L2, a mitochondrial complex I subunit, is oncogenic in colon cancer and may affect CoQ-related metabolism.
What Happens During positive regulation of ubiquinone biosynthetic process?
Transcriptional activation of COQ genes
In simple terms: The cell turns up the production of the enzymes that make CoQ.
Positive regulation of ubiquinone biosynthesis often begins with increased transcription of COQ genes, which encode the enzymes of the CoQ biosynthetic pathway. Transcription factors and coactivators respond to metabolic and oxidative cues to enhance COQ gene expression, thereby raising the capacity for CoQ production [1,3].
Post-translational modification of CoQ enzymes
In simple terms: The CoQ-making enzymes get chemical tags that make them work harder.
Several CoQ biosynthetic enzymes, such as COQ7 and COQ8A, are regulated by phosphorylation and other post-translational modifications that increase their catalytic activity or stability [1,3]. These modifications allow rapid, reversible upregulation of CoQ synthesis in response to cellular stress.
Metabolic flux enhancement
In simple terms: The cell pushes more raw material into the CoQ assembly line.
Positive regulation can also occur at the level of substrate supply, such as increased availability of polyprenyl diphosphate precursors and benzoquinone ring precursors [1,3]. This metabolic channeling ensures that the biosynthetic enzymes have sufficient substrates to sustain elevated CoQ production.
FSP1-mediated CoQ redox cycling
In simple terms: FSP1 helps recycle CoQ to keep it in its protective form.
FSP1 (AIFM2) acts as a CoQ oxidoreductase that regenerates reduced ubiquinol, thereby enhancing the antioxidant function of CoQ and inhibiting ferroptosis. This represents a positive regulatory loop that amplifies the protective effects of ubiquinone biosynthesis.
Key Genes Involved in GO:1904775 positive regulation of ubiquinone biosynthetic process
The following genes and proteins are central to the positive regulation of ubiquinone biosynthetic process, based on published literature [1,3,5,8].
| Gene | Major Role | Research Relevance |
|---|---|---|
| COQ2 | Catalyzes the second step of CoQ biosynthesis | Mutations cause CoQ10 deficiency; target for knockout studies |
| COQ3 | O-methyltransferase in CoQ biosynthesis | Essential for CoQ production; knockout leads to CoQ auxotrophy |
| COQ4 | Scaffold protein for CoQ biosynthetic complex | Regulates stability of the CoQ synthome |
| COQ5 | C-methyltransferase in CoQ biosynthesis | Required for CoQ synthesis; point mutations affect activity |
| COQ6 | Monooxygenase in CoQ biosynthesis | Mutations linked to nephrotic syndrome; knockout models available |
| COQ7 | Hydroxylase in CoQ biosynthesis | Regulated by phosphorylation; key target for positive regulation [1,3] |
| COQ8A | Atypical kinase involved in CoQ biosynthesis regulation | Mutations cause cerebellar ataxia; regulates CoQ synthome |
| COQ8B | Atypical kinase, paralog of COQ8A | Mutations cause nephropathy; involved in CoQ biosynthesis |
| COQ9 | Lipid-binding protein in CoQ biosynthesis | Stabilizes the CoQ synthome; knockout affects CoQ levels |
| COQ10A | CoQ-binding protein in respiratory complex III | Modulates CoQ pool; overexpression studies |
| COQ10B | Paralog of COQ10A | May regulate CoQ availability in mitochondria |
| PDSS1 | Decaprenyl diphosphate synthase subunit 1 | Provides polyprenyl tail for CoQ; mutations cause CoQ deficiency |
| PDSS2 | Decaprenyl diphosphate synthase subunit 2 | Required for CoQ biosynthesis; knockout models |
| FSP1 (AIFM2) | CoQ oxidoreductase that regenerates ubiquinol | Inhibits ferroptosis; key positive regulator |
| NDUFA4L2 | Mitochondrial complex I subunit | Oncogenic in colon cancer; may influence CoQ metabolism |
| GPX4 | Glutathione peroxidase 4 | Works parallel to FSP1-CoQ axis to inhibit ferroptosis |
| NLRP3 | Inflammasome component | CoQ10 mitigates inflammation via NLRP3/IL1β pathway |
How Is positive regulation of ubiquinone biosynthetic process Regulated?
Positive regulation of ubiquinone biosynthesis is controlled at multiple levels. Transcriptional regulation involves nuclear receptors and stress-responsive transcription factors that upregulate COQ gene expression [1,3]. Post-translational modifications, such as phosphorylation of COQ7 and COQ8A, enhance enzyme activity. Metabolic signals, including the availability of acetyl-CoA and polyprenyl precursors, also modulate flux through the pathway. Additionally, FSP1-mediated redox cycling of CoQ provides a positive feedback mechanism that maintains ubiquinol levels and suppresses ferroptosis. CoQ10 supplementation has been shown to mitigate macrophage-mediated inflammation via the NLRP3/IL1β pathway, suggesting that extracellular CoQ can influence inflammatory signaling.
positive regulation of ubiquinone biosynthetic process and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| COQ2 | CoQ10 deficiency, encephalopathy | Knockout HEK293 cells; rescue with CoQ10 |
| COQ7 | Mitochondrial dysfunction, aging | Point-mutation knock-in mice; overexpression [1,3] |
| FSP1 (AIFM2) | Ferroptosis resistance in cancer | Knockout cancer cell lines; ferroptosis induction |
| NDUFA4L2 | Colon cancer oncogenesis | Knockout colon cancer cells; xenograft |
| NLRP3 | Myocardial infarction inflammation | CoQ10-treated macrophage models |
CoQ10 deficiency and mitochondrial disorders
Primary CoQ10 deficiency is caused by mutations in COQ genes and leads to a spectrum of mitochondrial disorders, including encephalopathy, nephropathy, and cerebellar ataxia. Positive regulation of ubiquinone biosynthesis is impaired in these conditions, and restoring CoQ levels is a therapeutic goal [1,5].
Ferroptosis and cancer
FSP1 acts as a CoQ oxidoreductase to inhibit ferroptosis, a form of cell death implicated in cancer and neurodegeneration. Positive regulation of ubiquinone biosynthesis enhances this protective axis, and cancer cells may upregulate CoQ synthesis to evade ferroptosis. NDUFA4L2, a mitochondrial complex I subunit, is oncogenic in colon cancer and may affect CoQ-related metabolism.
Cardiovascular and metabolic disease
CoQ10 mitigates macrophage-mediated inflammation in the heart following myocardial infarction via the NLRP3/IL1β pathway. CoQ imbalance drives reverse electron transport and disrupts liver metabolism, highlighting the importance of tight regulation of ubiquinone biosynthesis in metabolic health.
Neurodegeneration and aging
CoQ10 status has been linked to cognitive function, and declining CoQ levels with age may contribute to neurodegeneration. Positive regulation of ubiquinone biosynthesis could be a strategy to support neuronal mitochondrial function and antioxidant defense.
From positive regulation of ubiquinone biosynthetic process-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Does COQ2 loss impair CoQ biosynthesis? | COQ2 knockout cell line |
| Does a specific COQ7 mutation affect enzyme activity? | COQ7 point-mutation knock-in [1,3] |
| Can overexpression of COQ8A boost CoQ levels? | COQ8A overexpression stable cell line |
| How does FSP1 regulate ferroptosis via CoQ? | FSP1 knockout and overexpression models |
| What is the role of NDUFA4L2 in colon cancer? | NDUFA4L2 knockout colon cancer cells |
| Does CoQ10 mitigate NLRP3 inflammation? | NLRP3 knockout macrophages treated with CoQ10 |
How to Study the positive regulation of ubiquinone biosynthetic process Process
| Method | What It Measures | Typical Application |
|---|---|---|
| CRISPR knockout screen | Gene essentiality for CoQ biosynthesis | Identify positive regulators |
| RNA-seq | Transcript levels of COQ genes | Transcriptional upregulation [1,3] |
| LC-MS metabolomics | CoQ10 and CoQ9 levels | Quantify pathway output [1,3] |
| Proteomics | Protein abundance of CoQ enzymes | Post-translational regulation |
| Live-cell imaging | Mitochondrial redox state | Real-time CoQ function [1,4] |
| Ferroptosis assay | Cell death upon GPX4 inhibition | FSP1-CoQ axis |
| Seahorse respirometry | Mitochondrial respiration | CoQ-dependent bioenergetics [1,3] |
| CoQ10 supplementation | Rescue of CoQ deficiency | Therapeutic testing [2,5] |
CRISPR knockout screening
Genome-wide CRISPR knockout screens can identify genes whose loss alters CoQ levels or ferroptosis sensitivity, revealing positive regulators of ubiquinone biosynthesis.
RNA-seq and transcriptomics
RNA sequencing measures changes in COQ gene expression under conditions that upregulate CoQ biosynthesis, helping to define transcriptional networks [1,3].
Proteomics and metabolomics
Mass spectrometry-based proteomics and metabolomics quantify CoQ species and biosynthetic enzymes, providing direct evidence of pathway activation [1,3].
Live-cell imaging
Fluorescent probes and genetically encoded sensors can monitor mitochondrial redox state and CoQ-dependent processes in real time [1,4].
How CRISPR Can Be Used to Study GO:1904775 positive regulation of ubiquinone biosynthetic process
Knockout
CRISPR knockout of COQ genes or FSP1 ablates positive regulation of ubiquinone biosynthesis, leading to reduced CoQ levels and increased ferroptosis sensitivity. Knockout models are essential to establish causality [1,3].
Point Mutation
Point mutations in COQ7 or COQ8A can mimic patient variants, allowing researchers to test how specific amino acid changes affect CoQ biosynthesis and regulation [1,3].
Knock-in
Knock-in of tagged COQ proteins enables localization and interaction studies, revealing how positive regulators assemble into the CoQ synthome.
Overexpression
Overexpression of COQ8A or FSP1 boosts CoQ biosynthesis and protects against ferroptosis, providing gain-of-function evidence for positive regulation.
How EDITGENE Supports positive regulation of ubiquinone biosynthetic process Research
Researchers studying positive regulation of ubiquinone biosynthetic process-related genes often need to determine whether a candidate gene is causally involved in CoQ production, ferroptosis resistance, or metabolic disease. EDITGENE provides a comprehensive suite of CRISPR services to accelerate this research.
Contact EDITGENE today to design your custom CRISPR model for positive regulation of ubiquinone biosynthetic process research.
Frequently Asked Questions About positive regulation of ubiquinone biosynthetic process
What is GO:1904775?
GO:1904775 is the Gene Ontology term for positive regulation of ubiquinone biosynthetic process, describing any process that increases the rate or extent of coenzyme Q (ubiquinone) production.
What genes are involved in positive regulation of ubiquinone biosynthetic process?
Key genes include COQ2, COQ3, COQ4, COQ5, COQ6, COQ7, COQ8A, COQ8B, COQ9, COQ10A, COQ10B, PDSS1, PDSS2, and FSP1 (AIFM2) [1,3].
How is ubiquinone biosynthesis regulated?
It is regulated at transcriptional, post-translational, and metabolic levels, including phosphorylation of COQ7 and COQ8A, and FSP1-mediated redox cycling [1,3].
Why is coenzyme Q10 important for health?
CoQ10 is essential for mitochondrial ATP production and acts as an antioxidant; it also inhibits ferroptosis via FSP1 [1,2,5].
What diseases are linked to CoQ10 deficiency?
CoQ10 deficiency causes mitochondrial disorders, encephalopathy, nephropathy, cerebellar ataxia, and has been linked to cardiovascular and neurodegenerative diseases [1,2,5].
How can I study positive regulation of ubiquinone biosynthesis?
CRISPR knockout, point-mutation, knock-in, and overexpression models combined with metabolomics and ferroptosis assays are standard approaches [1,3].
What is the role of FSP1 in CoQ biology?
FSP1 is a CoQ oxidoreductase that regenerates ubiquinol and acts parallel to GPX4 to inhibit ferroptosis.
Does CoQ10 supplementation help after myocardial infarction?
CoQ10 mitigates macrophage-mediated inflammation in the heart following myocardial infarction via the NLRP3/IL1β pathway.
What is the connection between CoQ and liver metabolism?
CoQ imbalance drives reverse electron transport and disrupts liver metabolism, highlighting the importance of its regulation.
Can CRISPR be used to boost CoQ biosynthesis?
Yes, CRISPR activation or overexpression of COQ genes can enhance CoQ biosynthesis and protect against ferroptosis.
Conclusion
GO:1904775, positive regulation of ubiquinone biosynthetic process, is a critical biological process that ensures adequate production of coenzyme Q for mitochondrial respiration, antioxidant defense, and ferroptosis suppression. Dysregulation of this process is implicated in mitochondrial diseases, cardiovascular disorders, metabolic liver disease, and neurodegeneration [1,2,3,5]. Advances in CRISPR gene editing and multi-omics technologies are enabling researchers to dissect the regulatory networks controlling CoQ biosynthesis and to develop targeted therapies [1,3,8]. EDITGENE provides the tools and expertise to accelerate this research, from knockout and knock-in models to CRISPR library screening and bioinformatics analysis.
References
- 1. Bersuker K et al.. 2019. The CoQ oxidoreductase FSP1 acts parallel to GPX4 to inhibit ferroptosis.. Nature 575(7784):688-692 PMID: 31634900
- 2. Pan W et al.. 2024. Coenzyme Q10 mitigates macrophage mediated inflammation in heart following myocardial infarction via the NLRP3/IL1β pathway.. BMC Cardiovasc Disord 24(1):76 PMID: 38281937
- 3. Goncalves RLS et al.. 2025. CoQ imbalance drives reverse electron transport to disrupt liver metabolism.. Nature 643(8073):1057-1065 PMID: 40437093
- 4. Raabe J et al.. 2024. Physioxia rewires mitochondrial complex composition to protect stem cell viability.. Redox Biol 77:103352 PMID: 39341035
- 5. Nankivell MC et al.. 2025. Coenzyme Q10 and Cognition: A Review.. Nutrients 17(17) PMID: 40944284
- 6. Liang Y et al.. 2023. Structure of mycobacterial respiratory complex I.. Proc Natl Acad Sci U S A 120(13):e2214949120 PMID: 36952383
- 7. Woyda-Ploszczyca AM et al.. 2017. The conserved regulation of mitochondrial uncoupling proteins: From unicellular eukaryotes to mammals.. Biochim Biophys Acta Bioenerg 1858(1):21-33 PMID: 27751905
- 8. Yi J et al.. 2025. A multidimensional pan-cancer analysis of NDUFA4L2 and verification of the oncogenic value in colon cancer.. FASEB J 39(1):e70300 PMID: 39792315
