GO:0071071 regulation of phospholipid biosynthetic process: Lipid Homeostasis Pathway, Genes, Functions and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:0071071 describes any process that modulates the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of phospholipids.
• Phospholipid biosynthesis is controlled at transcriptional, post-transcriptional and metabolic levels, and its dysregulation is linked to ferroptosis, cancer, osteoporosis and nuclear receptor signaling [1,2,4].
• Key regulators include UME6, SIN3 and RPD3, which combinatorially control phospholipid biosynthetic gene expression.
• ORP5 and ORP8 orchestrate lipid droplet biogenesis and maintenance at ER-mitochondria contact sites, linking phospholipid regulation to organelle dynamics.
• Phospholipid composition directly alters ferroptosis sensitivity, making this pathway a target for cancer therapy.
• CRISPR knockout, point-mutation, knock-in and overexpression models enable causal dissection of GO:0071071 regulators in disease contexts [2,8].
Description
Phospholipids are essential structural and signaling molecules that form the core of cellular membranes. The regulation of phospholipid biosynthetic process (GO:0071071) encompasses any process that modulates the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of phospholipids. This GO term is critical because phospholipid abundance and composition must be tightly balanced to support membrane integrity, organelle function and cell survival. Disruption of this regulation contributes to diverse pathologies, including ferroptosis, cancer progression and metabolic bone disease [1,2,3]. Researchers study GO:0071071 to understand how cells sense lipid demand, how biosynthetic enzymes are transcriptionally and post-translationally controlled, and how these mechanisms can be therapeutically targeted. The pathway intersects with nuclear receptor signaling, lipid droplet biology and ER-mitochondria communication, making it a central node in cellular lipid homeostasis [4,5].
regulation of phospholipid biosynthetic process At A Glance
| GO ID | GO:0071071 |
|---|---|
| GO term | regulation of phospholipid biosynthetic process |
| Ontology | biological_process |
| Synonym | regulation of phospholipid anabolism; regulation of phospholipid biosynthesis; regulation of phospholipid formation; regulation of phospholipid synthesis |
| Major function | Modulates the frequency, rate or extent of phospholipid formation |
| Related processes | Ferroptosis, lipid droplet biogenesis, nuclear receptor signaling, ER-mitochondria contact sites |
| Key regulators | UME6, SIN3, RPD3, ORP5, ORP8, PLCβ |
| Disease relevance | Cancer, osteoporosis, ferroptosis sensitivity, metabolic disorders |
What Is GO:0071071?
GO:0071071, regulation of phospholipid biosynthetic process, is defined as any process that modulates the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of phospholipids. In other words, it covers all regulatory inputs, including transcriptional, post-transcriptional, translational and metabolic control, that set the pace and output of phospholipid synthesis. This term is a biological process and includes synonyms such as regulation of phospholipid anabolism, regulation of phospholipid biosynthesis, regulation of phospholipid formation and regulation of phospholipid synthesis.
Why Is regulation of phospholipid biosynthetic process Important in Cell Biology?
Understanding GO:0071071 is essential because phospholipids are not merely structural components; they act as signaling molecules and determinants of membrane physical properties. Dysregulated phospholipid biosynthesis alters ferroptosis sensitivity, a form of regulated cell death with therapeutic potential in cancer [1,3]. In bone biology, regulation of phospholipid metabolism and biosynthesis of unsaturated fatty acids is linked to osteoporosis protection [2,8]. Phospholipids also regulate the nuclear receptor superfamily, influencing gene expression programs. Moreover, ORP5 and ORP8 connect phospholipid regulation to lipid droplet biogenesis and ER-mitochondria contact sites, highlighting its role in organelle homeostasis. Thus, GO:0071071 sits at the intersection of cell death, metabolism and disease, making it a high-value target for basic and translational research.
• Controls membrane lipid composition and cellular integrity.
• Modulates ferroptosis sensitivity, impacting cancer therapy.
• Regulates nuclear receptor activity and downstream gene expression.
• Influences lipid droplet biogenesis and ER-mitochondria contact sites.
• Linked to osteoporosis and bone metabolism [2,8].
• Involves combinatorial transcriptional regulation by UME6, SIN3 and RPD3.
• Connects to PLCβ signaling and phosphoinositide pathways.
• Provides targets for metabolic and oncological drug discovery [1,3].
What Happens During regulation of phospholipid biosynthetic process?
Transcriptional control of phospholipid biosynthetic genes
In simple terms: Cells decide how much phospholipid to make by turning the relevant genes on or off.
The expression of phospholipid biosynthetic genes is combinatorially regulated by transcription factors and chromatin modifiers. In yeast, UME6, SIN3 and RPD3 act together to repress or activate phospholipid biosynthetic gene expression in response to metabolic cues. This transcriptional layer ensures that phospholipid production matches membrane demand and growth conditions.
Post-transcriptional and metabolic feedback
In simple terms: Even after genes are turned on, the cell can fine-tune enzyme activity and mRNA stability.
Phospholipid biosynthesis is subject to feedback inhibition by downstream lipid products and to post-transcriptional regulation. The regulation of enzymatic lipid peroxidation in osteoblasts protects against postmenopausal osteoporosis, indicating that lipid metabolic enzymes are modulated at multiple levels. Such feedback loops prevent toxic accumulation of intermediates and maintain lipid homeostasis.
Lipid droplet biogenesis and ER-mitochondria contacts
In simple terms: Phospholipids help build fat storage droplets and communication points between organelles.
ORP5 and ORP8 orchestrate lipid droplet biogenesis and maintenance at ER-mitochondria contact sites. These oxysterol-binding protein-related proteins transfer phospholipids and influence the lipid environment required for droplet formation. This connects GO:0071071 to organelle dynamics and energy metabolism.
Phospholipid regulation of nuclear receptors
In simple terms: Phospholipids can directly bind and control proteins that switch genes on and off.
Phospholipids regulate the nuclear receptor superfamily, acting as ligands or modulators of receptor activity. This crosstalk means that changes in phospholipid biosynthesis can reprogram gene expression broadly, affecting development, metabolism and disease.
Ferroptosis sensitivity and lipid peroxidation
In simple terms: The types of phospholipids in membranes determine whether a cell is vulnerable to a form of iron-dependent cell death.
Ferroptosis occurs at the intersection of lipid metabolism and cellular signaling, and lipid composition alters ferroptosis sensitivity [1,3]. Regulation of phospholipid biosynthesis therefore directly impacts whether cancer cells survive or die under oxidative stress, making it a therapeutic target.
Key Genes Involved in GO:0071071 regulation of phospholipid biosynthetic process
The following genes and proteins are experimentally implicated in the regulation of phospholipid biosynthetic process (GO:0071071) or in closely related phospholipid metabolic pathways.
| Gene | Major Role | Research Relevance |
|---|---|---|
| UME6 | Transcriptional regulator of phospholipid biosynthetic genes | Combinatorial control with SIN3 and RPD3 |
| SIN3 | Chromatin modifier repressing phospholipid gene expression | Epigenetic regulation of lipid synthesis |
| RPD3 | Histone deacetylase involved in phospholipid gene repression | Chromatin-level control of phospholipid biosynthesis |
| ORP5 | Phospholipid transfer at ER-mitochondria contacts | Lipid droplet biogenesis and organelle communication |
| ORP8 | Phospholipid transfer at ER-mitochondria contacts | Lipid droplet maintenance and ER-mitochondria contact sites |
| PLCβ | Phospholipase C beta, generates lipid second messengers | Molecular regulation of PLCβ signaling |
| Nuclear receptors (e.g., PPARs, LXRs) | Bind phospholipids and regulate gene expression | Phospholipid regulation of nuclear receptor superfamily |
| Lipid peroxidation enzymes (e.g., GPX4, ACSL4) | Modulate phospholipid peroxidation | Ferroptosis sensitivity and cancer [1,3] |
| ACSL4 | Activates long-chain fatty acids for phospholipid synthesis | Ferroptosis execution and lipid composition [1,3] |
| GPX4 | Reduces phospholipid hydroperoxides | Protects against ferroptosis [1,3] |
| LPCAT3 | Remodels phospholipids with polyunsaturated fatty acids | Ferroptosis sensitivity [1,3] |
| SREBP1 | Transcription factor controlling lipogenic genes | Regulation of phospholipid and fatty acid synthesis |
| PPARα | Nuclear receptor regulating lipid metabolism | Phospholipid regulation of nuclear receptors |
| LXR | Nuclear receptor responsive to oxysterols and phospholipids | Lipid homeostasis and gene expression |
| Puerarin-targeted pathways | Serum metabolomics of phospholipid metabolism | Osteoporosis protection via phospholipid regulation |
How Is regulation of phospholipid biosynthetic process Regulated?
The regulation of phospholipid biosynthetic process is controlled at multiple levels. Transcriptionally, the UME6-SIN3-RPD3 complex combinatorially regulates phospholipid biosynthetic gene expression in response to metabolic signals. Post-transcriptionally, feedback inhibition by phospholipid end-products and lipid peroxidation enzymes fine-tunes pathway flux. Signaling lipids such as those generated by PLCβ can influence downstream targets. Additionally, phospholipids themselves regulate nuclear receptors, creating feedback loops that adjust gene expression. At the organelle level, ORP5 and ORP8 mediate phospholipid transfer at ER-mitochondria contact sites, coupling biosynthesis to lipid droplet formation and energy status. Ferroptosis-related signaling intersects with these regulatory layers, as lipid composition determines cell death sensitivity [1,3].
regulation of phospholipid biosynthetic process and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| ACSL4 | Ferroptosis sensitivity in cancer | Knockout in cancer cell lines, lipid peroxidation assays [1,3] |
| GPX4 | Ferroptosis resistance | Point mutation or knockout, ferroptosis induction [1,3] |
| ORP5/ORP8 | Lipid droplet biogenesis and ER-mitochondria contacts | Knockout and tagged knock-in for imaging |
| UME6/SIN3/RPD3 | Transcriptional regulation of phospholipid genes | Knockout in yeast, RNA-seq |
| Puerarin targets | Postmenopausal osteoporosis | OVX animal models, serum metabolomics |
Cancer and ferroptosis
Dysregulation of phospholipid biosynthesis alters ferroptosis sensitivity, a form of iron-dependent cell death that can be exploited to kill cancer cells [1,3]. Lipid composition changes, including increased polyunsaturated phospholipids, promote ferroptosis, while upregulation of antioxidant systems such as GPX4 protects cancer cells [1,3]. Targeting GO:0071071 regulators may therefore sensitize tumors to ferroptosis-inducing therapies.
Osteoporosis and bone metabolism
Regulation of phospholipid metabolism and biosynthesis of unsaturated fatty acids is implicated in postmenopausal osteoporosis. Puerarin improves OVX-induced osteoporosis by modulating phospholipid metabolism, as shown by serum metabolomics. Additionally, regulation of enzymatic lipid peroxidation in osteoblasts protects against postmenopausal osteoporosis. These findings link phospholipid biosynthetic regulation to bone health.
Metabolic and nuclear receptor disorders
Phospholipids regulate the nuclear receptor superfamily, affecting lipid and glucose homeostasis. Disruption of this crosstalk can contribute to metabolic syndrome, fatty liver disease and atherosclerosis. Understanding GO:0071071 provides insight into how lipid signals control nuclear receptor activity and downstream gene programs.
From regulation of phospholipid biosynthetic process-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Is a candidate gene required for phospholipid biosynthesis? | CRISPR knockout cell line |
| Does a specific mutation alter enzyme activity? | CRISPR point mutation knock-in |
| How does a regulatory protein localize dynamically? | Tagged knock-in (e.g., GFP) |
| Does overexpression of a regulator increase phospholipid flux? | CRISPR overexpression (ORF) cell line |
| Which genes modulate ferroptosis via phospholipids? | CRISPR library screening |
| What transcriptional networks control phospholipid genes? | RNA-seq after knockout or overexpression |
How to Study the regulation of phospholipid biosynthetic process Process
| Method | What It Measures | Typical Application |
|---|---|---|
| Lipidomics (LC-MS) | Phospholipid species and abundance | Quantify pathway output [1,3] |
| RNA-seq | Gene expression changes | Transcriptional regulation |
| ChIP-seq | Transcription factor binding | UME6/SIN3/RPD3 targets |
| Fluorescence microscopy | Lipid droplet and organelle dynamics | ORP5/ORP8 localization |
| Ferroptosis assays | Lipid peroxidation and cell death | Cancer therapy screening [1,3] |
| CRISPR screening | Gene requirement for phospholipid regulation | Identify novel regulators [1,3] |
| Metabolomics | Serum or cellular metabolites | Osteoporosis models |
Lipidomics and mass spectrometry
Mass spectrometry-based lipidomics quantifies phospholipid species and reveals changes in composition upon genetic perturbation. This method is essential for measuring the output of GO:0071071 and linking it to ferroptosis sensitivity [1,3].
Transcriptomics and RNA-seq
RNA-seq measures expression changes in phospholipid biosynthetic genes after knockout or overexpression of regulators such as UME6, SIN3 or RPD3. It provides a global view of transcriptional networks controlling phospholipid synthesis.
Fluorescence imaging of lipid droplets and organelles
Imaging with tagged ORP5 or ORP8 allows visualization of lipid droplet biogenesis and ER-mitochondria contact sites. This method connects phospholipid regulation to organelle dynamics in live cells.
Ferroptosis assays
Ferroptosis sensitivity is measured using lipid peroxidation probes, viability assays and inhibitors. These assays link phospholipid composition to cell death outcomes [1,3].
How CRISPR Can Be Used to Study GO:0071071 regulation of phospholipid biosynthetic process
Knockout
CRISPR knockout of candidate genes such as ACSL4, GPX4 or UME6 enables loss-of-function studies to determine their requirement for phospholipid biosynthesis and ferroptosis sensitivity [1,3,6]. Knockout cell lines are foundational for causal inference.
Point Mutation
Point mutations can be introduced into catalytic residues of phospholipid enzymes to dissect their activity without altering protein levels. This is useful for studying enzyme-specific contributions to GO:0071071.
Knock-in
Tagged knock-in of ORP5 or ORP8 with fluorescent proteins allows real-time imaging of phospholipid transfer at ER-mitochondria contact sites. Knock-in of disease-associated variants can model human mutations.
Overexpression
CRISPR overexpression of regulators such as SREBP1 or nuclear receptors can drive phospholipid biosynthesis and reveal downstream effects on lipid composition and cell death [1,4].
How EDITGENE Supports regulation of phospholipid biosynthetic process Research
Researchers studying regulation of phospholipid biosynthetic process-related genes often need to determine whether a candidate gene is causally involved in lipid homeostasis, ferroptosis or disease. EDITGENE provides end-to-end CRISPR services to generate precisely engineered cell models, enabling rigorous functional validation of GO:0071071 regulators.
Contact EDITGENE today to design your custom CRISPR model for regulation of phospholipid biosynthetic process research.
Frequently Asked Questions About regulation of phospholipid biosynthetic process
What is GO:0071071?
GO:0071071 is the Gene Ontology term for regulation of phospholipid biosynthetic process, defined as any process that modulates the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of phospholipids.
What genes are involved in regulation of phospholipid biosynthetic process?
Key genes include UME6, SIN3, RPD3, ORP5, ORP8, PLCβ, ACSL4, GPX4 and nuclear receptors such as PPARα and LXR [4,5,6,7].
How is phospholipid biosynthesis regulated?
It is regulated transcriptionally by UME6-SIN3-RPD3, post-transcriptionally by feedback and lipid peroxidation enzymes, and at the organelle level by ORP5/ORP8 at ER-mitochondria contacts [2,5,6].
Why is regulation of phospholipid biosynthetic process important in cancer?
Phospholipid composition alters ferroptosis sensitivity, so regulating this pathway can determine whether cancer cells survive or die under oxidative stress [1,3].
What diseases are linked to phospholipid biosynthesis dysregulation?
Cancer, osteoporosis, metabolic disorders and ferroptosis-related pathologies are linked to dysregulated phospholipid biosynthesis [1,2,3,8].
How can CRISPR be used to study GO:0071071?
CRISPR knockout, point mutation, knock-in and overexpression models allow causal testing of genes involved in phospholipid regulation [2,5,6].
What methods measure phospholipid biosynthesis regulation?
Lipidomics, RNA-seq, ChIP-seq, fluorescence imaging and ferroptosis assays are commonly used [1,3,5,6].
What is the role of ORP5 and ORP8 in phospholipid regulation?
ORP5 and ORP8 orchestrate lipid droplet biogenesis and maintenance at ER-mitochondria contact sites.
How do nuclear receptors respond to phospholipids?
Phospholipids regulate the nuclear receptor superfamily, acting as ligands or modulators that affect gene expression.
Can phospholipid biosynthesis be targeted for osteoporosis therapy?
Yes, puerarin improves OVX-induced osteoporosis by regulating phospholipid metabolism and biosynthesis of unsaturated fatty acids.
Conclusion
GO:0071071, regulation of phospholipid biosynthetic process, is a central biological process that controls membrane lipid composition, organelle function and cell fate. Its dysregulation is implicated in cancer, osteoporosis and metabolic disorders, and it intersects with ferroptosis, nuclear receptor signaling and ER-mitochondria communication [1,2,3,4,5]. Understanding its regulatory mechanisms requires integrated approaches, including CRISPR-based models, lipidomics and transcriptomics. EDITGENE offers comprehensive CRISPR services to accelerate research on this critical pathway.
References
- 1. Liang D et al.. 2022. Ferroptosis at the intersection of lipid metabolism and cellular signaling.. Mol Cell 82(12):2215-2227 PMID: 35390277
- 2. Zhang QY et al.. 2025. Regulation of enzymatic lipid peroxidation in osteoblasts protects against postmenopausal osteoporosis.. Nat Commun 16(1):758 PMID: 39824794
- 3. Park VS et al.. 2025. Lipid Composition Alters Ferroptosis Sensitivity.. Cancer Res 85(22):4380-4397 PMID: 40911781
- 4. Crowder MK et al.. 2017. Phospholipid regulation of the nuclear receptor superfamily.. Adv Biol Regul 63:6-14 PMID: 27838257
- 5. Guyard V et al.. 2022. ORP5 and ORP8 orchestrate lipid droplet biogenesis and maintenance at ER-mitochondria contact sites.. J Cell Biol 221(9) PMID: 35969857
- 6. Elkhaimi M et al.. 2000. Combinatorial regulation of phospholipid biosynthetic gene expression by the UME6, SIN3 and RPD3 genes.. Nucleic Acids Res 28(16):3160-7 PMID: 10931932
- 7. Ubeysinghe S et al.. 2023. Molecular regulation of PLCβ signaling.. Methods Enzymol 682:17-52 PMID: 36948701
- 8. Li B et al.. 2022. Puerarin improves OVX-induced osteoporosis by regulating phospholipid metabolism and biosynthesis of unsaturated fatty acids based on serum metabolomics.. Phytomedicine 102:154198 PMID: 35636175
