GO:0080090 regulation of primary metabolic process

Regulation of primary metabolic process (GO:0080090) is a Gene Ontology biological_process term that captures the control layer superimposed on the core anabolic and catabolic chemistry of the cell. The QuickGO definition states that it comprises any process that modulates the frequency, rate or extent of the chemical reactions and pathways within a cell or an organism involving those compounds formed as a part of the normal anabolic and catabolic processes, and that these processes take place in most, if not all, cells of the organism. In practical terms, this term is the ontology node that researchers use when they want to describe not the metabolic reaction itself, but the regulatory input that sets its pace, direction and magnitude. Why does this matter for experimental biologists? Because the regulation of primary metabolism is the interface between environmental signals, genetic programs and cellular output. Work in yeast has shown that proteolytic regulation of metabolic enzymes by E3 ubiquitin ligase complexes is a general strategy for adjusting enzyme abundance and therefore flux through primary pathways. In mammalian systems, the same logic applies: the expression and function of the glycolytic enzyme PKM2 are regulated by GLIS3 during metabolic reprogramming in polycystic kidneys, directly linking a transcriptional regulator to a primary metabolic enzyme. At the systems level, regulation of primary metabolic process is also the conceptual umbrella under which pathological states such as ferroptosis are studied. Ferroptosis is a form of regulated cell death driven by iron-dependent lipid peroxidation, and its mechanisms and regulations are deeply intertwined with primary metabolic control, including redox metabolism and iron handling. Thus GO:0080090 is not an abstract annotation: it is the ontology term that organizes how cells tune their core chemistry, and it is a productive entry point for CRISPR-based functional genomics.

In our own words, GO:0080090 (regulation of primary metabolic process) refers to any biological process that changes the frequency, rate or extent of the chemical reactions and pathways that build, interconvert and degrade the compounds central to normal anabolic and catabolic metabolism. It is a regulatory term rather than a metabolic term: it does not describe the chemistry itself, but the control exerted over that chemistry. The QuickGO definition emphasizes that these regulated processes occur in most, if not all, cells of an organism, which is why the term is broadly relevant across cell types and disease contexts.

Regulation of primary metabolic process (GO:0080090) is important because it determines how cells allocate energy and building blocks, and because its failure is a common denominator in metabolic, proliferative and degenerative disease. The regulatory layer is what allows a cell to switch between anabolic and catabolic modes, to survive nutrient stress, and to support proliferation or differentiation. Mechanistic studies in yeast established that proteolytic regulation of metabolic enzymes by E3 ubiquitin ligase complexes is a conserved strategy for controlling primary metabolism, while work in polycystic kidney disease showed that GLIS3 regulates PKM2 expression and function during metabolic reprogramming. In parallel, the ferroptosis field has demonstrated that the mechanisms and regulations of this cell death modality are tightly coupled to primary metabolic control, including iron and redox metabolism. For researchers, GO:0080090 therefore provides a principled ontology anchor for designing experiments that test causality between a candidate regulator and a metabolic phenotype.

The following genes and proteins are experimentally documented participants in the regulation of primary metabolic process or in closely related metabolic control pathways, based on the verified literature cited.

Regulation of primary metabolic process (GO:0080090) is itself regulated at several levels. Transcriptional control is exemplified by GLIS3, which regulates PKM2 expression and function during metabolic reprogramming in polycystic kidneys. Post-translational control is exemplified by E3 ubiquitin ligase complexes that mediate the proteolytic regulation of metabolic enzymes, a mechanism extensively characterized in yeast. In addition, the ferroptosis literature shows that the mechanisms and regulations of this cell death pathway are integrated with primary metabolic control, including iron and redox metabolism. Together, these layers allow cells to tune primary metabolism rapidly and reversibly in response to changing conditions.

Altered regulation of primary metabolic process is a hallmark of cancer, where cells rewire metabolism to support proliferation. The GLIS3-PKM2 axis illustrates how a transcriptional regulator can control a key metabolic enzyme during metabolic reprogramming, a process relevant to proliferative kidney disease and, by extension, to other proliferative contexts. Ferroptosis, a regulated cell death modality with strong metabolic dependencies, is also being explored as a therapeutic vulnerability in cancer, and its mechanisms and regulations are rooted in primary metabolic control. These observations make GO:0080090 a productive ontology entry point for cancer metabolism research.

Polycystic kidney disease involves metabolic reprogramming, and the regulation of PKM2 expression and function by GLIS3 has been directly implicated in this process. This finding links a specific transcriptional regulator to a primary metabolic enzyme and provides a mechanistic handle for experimental models of the disease. Because PKM2 is a glycolytic enzyme, its regulation sits squarely within GO:0080090, and perturbations of the GLIS3-PKM2 relationship can be tested with CRISPR-based approaches.

Ferroptosis is a form of regulated cell death driven by iron-dependent lipid peroxidation, and its mechanisms and regulations are tightly coupled to primary metabolic processes such as iron handling and redox metabolism. Consequently, dysregulation of GO:0080090 can shift a cell's susceptibility to ferroptosis, with implications for ischemia-reperfusion injury, neurodegeneration and cancer therapy. Studying the regulatory nodes that connect primary metabolism to ferroptosis is therefore a priority for both mechanistic and translational research.

RNA-seq and related transcriptomic methods allow researchers to measure how perturbations of candidate regulators change the expression of primary metabolic genes. In the context of GO:0080090, this approach can reveal whether a transcription factor such as GLIS3 controls a coordinated metabolic program, as suggested by its regulation of PKM2. Transcriptomic data can also be used to nominate downstream metabolic enzymes for follow-up CRISPR studies.

Because proteolytic regulation of metabolic enzymes by E3 ubiquitin ligase complexes is a conserved control mechanism, proteomics and ubiquitin enrichment methods are central to studying GO:0080090. These approaches can identify which metabolic enzymes are ubiquitinated under specific conditions and which ligases are responsible. Such experiments provide a mechanistic complement to transcriptional profiling and help define the regulatory architecture of primary metabolism.

Direct measurement of metabolites and flux is essential to determine whether a regulatory perturbation actually changes primary metabolic process. Although the verified citations focus on regulatory mechanisms, the logical readout of GO:0080090 is a change in the frequency, rate or extent of metabolic reactions. Combining flux analysis with genetic perturbation allows researchers to connect regulatory inputs to metabolic outputs.

For the subset of GO:0080090 research that intersects with ferroptosis, cell death and redox assays are key methods. Ferroptosis is driven by iron-dependent lipid peroxidation, and its mechanisms and regulations are linked to primary metabolic control. Assays that measure lipid peroxidation, iron availability and cell viability can therefore be used to test whether regulators of primary metabolism influence ferroptosis sensitivity.

Researchers studying regulation of primary metabolic process-related genes often need to determine whether a candidate gene is causally involved in setting the rate or extent of core metabolic reactions, or whether it is merely correlated with a metabolic phenotype. Answering that question requires precise, reproducible genetic models in relevant cell types, because the regulatory architecture of primary metabolism is layered and context-dependent. EDITGENE provides the CRISPR tools and services needed to build those models and to interpret the resulting data within the framework of GO:0080090.

GO:0080090 (regulation of primary metabolic process) is the Gene Ontology node that captures how cells control the rate and extent of their core anabolic and catabolic chemistry. The verified literature shows that this control operates through transcriptional regulators such as GLIS3 acting on enzymes such as PKM2, through proteolytic control of metabolic enzymes by E3 ubiquitin ligase complexes, and through integration with iron and redox metabolism in pathways such as ferroptosis. Together, these mechanisms define a rich regulatory landscape that is directly relevant to cancer, polycystic kidney disease and cell death research. For researchers, the practical implication is that causal questions about primary metabolic regulation are best answered with precise genetic models. CRISPR knockout, point-mutation, knock-in and overexpression approaches, combined with CRISPR library screening and bioinformatics, provide the toolkit needed to move from correlation to mechanism within the framework of GO:0080090.