GO:0016787 hydrolase activity: Mechanism, Genes and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:0016787 (hydrolase activity) describes catalysis of bond hydrolysis, including C-O, C-N, C-C and phosphoric anhydride bonds, making it one of the broadest molecular function terms in the Gene Ontology.
• Hydrolases control the half-life and availability of small-molecule and protein signals, as shown for the N-acetyltaurine hydrolase PTER, which regulates feeding and obesity.
• Secreted hydrolases such as Gpld1 can act systemically; exercise-induced Gpld1 enhances liver interferon responses and antiviral innate immunity.
• Hydrolase-dependent pathways intersect with sirtuin and AMPK signaling, and modulating them can mimic exercise or improve dystrophic muscle function.
• Hydrolase activity is studied with substrate-based assays, activity-based probes, metabolomics, proteomics and CRISPR knockout or point-mutation models.
• Because the term is so broad, researchers must pair GO:0016787 annotation with substrate, tissue and pathway context to avoid over-generalization.
Description
Hydrolase activity (GO:0016787) is a molecular function term in the Gene Ontology that covers enzymes catalyzing the cleavage of chemical bonds by water. The QuickGO definition specifies hydrolysis of various bonds, including C-O, C-N, C-C and phosphoric anhydride bonds, which places a very large and chemically diverse group of enzymes under a single functional label. This breadth makes GO:0016787 useful as a discovery entry point but also means that functional conclusions require substrate-level evidence. Recent work on PTER, an N-acetyltaurine hydrolase, shows how a single hydrolase can control a circulating metabolite and thereby regulate feeding and obesity. Similarly, the secreted hydrolase Gpld1 is induced by exercise and acts on the liver to enhance antiviral innate immunity, illustrating that hydrolase activity can mediate inter-organ communication. For researchers, GO:0016787 therefore marks both a mechanistic class of enzymes and a set of tractable targets for metabolic, immunological and musculoskeletal disease studies.
hydrolase activity At A Glance
| GO ID | GO:0016787 |
|---|---|
| GO term | hydrolase activity |
| Ontology | molecular_function |
| Synonym | none listed in QuickGO |
| Definition | Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc. |
| Major function | Water-dependent cleavage of chemical bonds across diverse substrate classes |
| Representative enzymes | PTER (N-acetyltaurine hydrolase), Gpld1 (glycosylphosphatidylinositol-specific phospholipase D1) |
| Disease relevance | Obesity and feeding control, antiviral innate immunity, muscle and cardiac stress responses |
| Common research methods | Enzyme activity assays, metabolomics, CRISPR knockout, point mutation, overexpression |
What Is GO:0016787?
In this article, hydrolase activity means the catalytic function of an enzyme that uses water to break a chemical bond. The official GO definition covers hydrolysis of C-O, C-N, C-C and phosphoric anhydride bonds, among others, so the term includes proteases, lipases, phosphatases, glycosidases, nucleases and many metabolic hydrolases. Because the definition is bond-based rather than substrate-based, annotation to GO:0016787 should be supported by direct biochemical evidence of hydrolytic cleavage and, where possible, identification of the natural substrate.
Why Is hydrolase activity Important in Cell Biology?
Hydrolase activity is important because hydrolysis is one of the most common ways cells terminate, recycle or activate signals. A single hydrolase can determine the concentration of a circulating metabolite, as PTER does for N-acetyltaurine in the control of feeding and obesity, or can convert an exercise signal into a liver antiviral program through Gpld1. Hydrolases also intersect with signaling nodes such as SIRT1 and AMPK that are central to exercise adaptation, muscle protection and cardiac stress responses. Consequently, GO:0016787 is a high-value annotation for target discovery, but its breadth demands careful substrate-level validation before therapeutic conclusions are drawn.
• Hydrolases regulate metabolite signals such as N-acetyltaurine, which controls feeding and obesity through PTER.
• Secreted hydrolases such as Gpld1 link exercise to liver interferon responses and antiviral innate immunity.
• Hydrolase-dependent pathways interact with SIRT1 activation, which can mimic exercise and promote Duchenne muscular dystrophy recovery.
• Exercise-preconditioning protects the heart against TAC-induced hypertrophy partly through NRF2-linked stress responses.
• Transcription factor Yin-Yang 1 governs cardiac metabolic reprogramming in response to exercise or pathological stress.
• Fasting combined with running exercise regulates glucose metabolism via the AMPK/SIRT1/BDNF pathway.
• ExermiR-129-3p improves muscle function by enhancing mitochondrial activity through PARP1 inhibition.
• Resistance exercise upregulates Irisin and suppresses myocardial fibrosis via AMPK-Sirt1 activation and TGFβ1-Smad2/3 inactivation.
• Hydrolase annotation supports drug-target discovery in metabolic, immune and musculoskeletal disease.
• CRISPR knockout and point-mutation models are essential to separate catalytic activity from scaffolding functions of hydrolases.
What Happens During hydrolase activity?
Substrate recognition and binding
In simple terms: The enzyme first grabs the molecule it will cut.
Hydrolase activity begins with non-covalent recognition of a substrate in the active site. For PTER, the natural substrate is N-acetyltaurine, and the enzyme's ability to bind this metabolite determines whether the feeding and obesity pathway is engaged. For Gpld1, substrate recognition occurs on glycosylphosphatidylinositol-anchored proteins, and this recognition is what allows exercise-induced Gpld1 to influence liver antiviral innate immunity. Substrate specificity is therefore the first experimental question when annotating a candidate enzyme to GO:0016787.
Water activation and bond cleavage
In simple terms: Water is positioned to break the target bond.
The catalytic step of hydrolase activity uses water to cleave a bond, which the GO definition generalizes across C-O, C-N, C-C and phosphoric anhydride bonds. In PTER, hydrolysis of N-acetyltaurine produces products that alter feeding behavior and obesity phenotypes in vivo. In the Gpld1 pathway, hydrolytic cleavage of a GPI anchor releases a signal that enhances the liver interferon response after exercise. These examples show that the same GO term covers chemically distinct cleavage events, so the exact bond broken must be demonstrated experimentally.
Product release and downstream signaling
In simple terms: The cut products go on to change cell behavior.
After hydrolysis, products are released and can act as signals. PTER-mediated hydrolysis of N-acetyltaurine regulates feeding and obesity, indicating that product availability is the physiologically relevant output. Gpld1-dependent hydrolysis after exercise promotes antiviral innate immunity in the liver, linking a hydrolytic event to an immune transcriptional program. Downstream, hydrolase-dependent signals intersect with SIRT1 and AMPK pathways that govern muscle and cardiac adaptation.
Integration with exercise and metabolic stress
In simple terms: Hydrolase outputs feed into exercise and stress responses.
Hydrolase activity is embedded in systemic stress responses. Exercise activates Gpld1 to enhance liver antiviral innate immunity, while SIRT1 activation by SRT2104 exerts exercise-mimetic effects and promotes Duchenne muscular dystrophy recovery. Exercise-preconditioning attenuates TAC-induced cardiac hypertrophy and myocardial injury through NRF2 activation, and Yin-Yang 1 governs cardiac metabolic reprogramming in response to exercise or pathological stress. Fasting combined with running exercise regulates glucose metabolism via AMPK/SIRT1/BDNF signaling, and resistance exercise suppresses myocardial fibrosis through AMPK-Sirt1 activation and TGFβ1-Smad2/3 inactivation. These studies place hydrolase activity within a broader network of metabolic and exercise-responsive pathways.
Key Genes Involved in GO:0016787 hydrolase activity
The following genes and proteins represent hydrolase activity (GO:0016787) and closely related signaling nodes supported by the verified literature.
| Gene | Major Role | Research Relevance |
|---|---|---|
| PTER | N-acetyltaurine hydrolase | Regulates feeding and obesity; direct example of a metabolic hydrolase |
| GPLD1 | GPI-specific phospholipase D1 hydrolase | Exercise-induced secreted hydrolase that enhances liver antiviral innate immunity |
| SIRT1 | NAD-dependent deacetylase and stress sensor | Target of SRT2104 exercise-mimetic effects in Duchenne muscular dystrophy |
| NRF2 | Redox-sensitive transcription factor | Mediates exercise-preconditioning protection against cardiac hypertrophy |
| YY1 | Transcription factor | Governs cardiac metabolic reprogramming in exercise and pathological stress |
| AMPK | Energy-sensing kinase | Central to fasting and exercise regulation of glucose metabolism |
| BDNF | Neurotrophic factor | Part of the AMPK/SIRT1/BDNF axis in glucose metabolism |
| PARP1 | Poly(ADP-ribose) polymerase | Inhibited by ExermiR-129-3p to improve mitochondrial activity and muscle function |
| Irisin | Exercise-induced myokine | Upregulated by resistance exercise; suppresses myocardial fibrosis |
| TGFβ1 | Profibrotic cytokine | Inactivated downstream of AMPK-Sirt1 in myocardial fibrosis |
| SMAD2/3 | TGFβ signaling effectors | Inactivated with TGFβ1 in resistance exercise-mediated cardioprotection |
| SIRT1/AMPK axis | Integrated stress-response module | Connects hydrolase-related metabolism to muscle and cardiac protection |
| NRF2 target genes | Antioxidant and cytoprotective program | Downstream of exercise-preconditioning in the heart |
| YY1 target genes | Cardiac metabolic gene program | Reprogrammed by exercise or pathological stress |
| BDNF signaling | Neuro-metabolic signaling | Linked to glucose metabolism under fasting and exercise |
| PARP1-dependent mitochondrial program | Mitochondrial activity control | Modulated by ExermiR-129-3p in muscle |
| Irisin/TGFβ1 axis | Myokine-fibrosis balance | Target for myocardial fibrosis suppression after infarction |
How Is hydrolase activity Regulated?
Hydrolase activity is regulated at multiple levels, including substrate availability, post-translational modification and pathway-level signaling. Exercise induces Gpld1, which then acts on the liver to enhance antiviral innate immunity, showing that physiological state controls hydrolase output. SIRT1 activation by SRT2104 produces exercise-mimetic effects and supports Duchenne muscular dystrophy recovery, indicating that sirtuin signaling can modulate hydrolase-associated metabolic programs. Exercise-preconditioning activates NRF2 to protect against TAC-induced cardiac hypertrophy and myocardial injury, while Yin-Yang 1 governs cardiac metabolic reprogramming under exercise or pathological stress. Fasting combined with running exercise regulates glucose metabolism via AMPK/SIRT1/BDNF signaling, and resistance exercise activates AMPK-Sirt1 while inactivating TGFβ1-Smad2/3 to suppress myocardial fibrosis. Together these findings show that hydrolase activity is embedded in nutrient, redox and exercise-responsive regulatory networks.
hydrolase activity and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| PTER | Obesity and feeding regulation | Pter knockout and point-mutation mouse models with N-acetyltaurine monitoring |
| GPLD1 | Antiviral innate immunity in liver | Exercise-trained Gpld1 knockout or overexpression models |
| SIRT1 | Duchenne muscular dystrophy | SRT2104-treated dystrophic models and Sirt1 knockout cells |
| PARP1 | Muscle mitochondrial dysfunction | ExermiR-129-3p delivery with PARP1 inhibition in muscle cells |
| TGFβ1/SMAD2/3 | Myocardial fibrosis after infarction | Resistance exercise plus TGFβ1-Smad2/3 perturbation models |
Hydrolase activity in obesity and metabolic disease
PTER functions as an N-acetyltaurine hydrolase that regulates feeding and obesity, providing direct evidence that a single hydrolase can control energy balance. This makes hydrolase activity a tractable entry point for metabolic disease research, especially when combined with fasting and exercise paradigms that regulate glucose metabolism via AMPK/SIRT1/BDNF. Because the GO term is broad, disease claims should be tied to a specific substrate and tissue context.
Hydrolase activity in antiviral innate immunity
Exercise activates interferon response of the liver via Gpld1, a secreted hydrolase, to enhance antiviral innate immunity. This links GO:0016787 to immune defense and suggests that hydrolase activity can be harnessed or monitored in infection models. The finding also illustrates inter-organ signaling, since muscle exercise leads to a liver immune program through a circulating hydrolase.
Hydrolase-related pathways in muscle and cardiac disease
SIRT1 activation by SRT2104 exerts exercise-mimetic effects and promotes Duchenne muscular dystrophy recovery, while ExermiR-129-3p enhances muscle function by improving mitochondrial activity through PARP1 inhibition. In the heart, exercise-preconditioning attenuates TAC-induced hypertrophy and myocardial injury through NRF2, Yin-Yang 1 governs cardiac metabolic reprogramming, and resistance exercise suppresses myocardial fibrosis via AMPK-Sirt1 and TGFβ1-Smad2/3. These studies show that hydrolase-associated metabolic pathways are relevant to both skeletal and cardiac muscle disease.
From hydrolase activity-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Is the hydrolase required for the metabolic phenotype? | CRISPR knockout of the candidate hydrolase gene |
| Does catalytic activity, rather than protein presence, drive the phenotype? | CRISPR point mutation of the catalytic residue |
| Can a disease-associated variant alter substrate handling? | Knock-in of the patient variant with substrate assays |
| Where and when is the hydrolase expressed? | Tagged knock-in with imaging or proteomics readout |
| Does excess hydrolase activity change signaling? | Overexpression in cell or animal models |
| Which pathways depend on the hydrolase? | CRISPR library screening plus transcriptomics or metabolomics |
How to Study the hydrolase activity Process
| Method | What It Measures | Typical Application |
|---|---|---|
| Enzyme activity assay | Rate of substrate hydrolysis | Confirming GO:0016787 annotation for a candidate enzyme |
| Metabolomics | Substrate and product abundance | Linking hydrolase activity to metabolic phenotypes such as obesity |
| Proteomics | Cleaved or shed protein products | Identifying downstream targets of secreted hydrolases like Gpld1 |
| RNA sequencing | Transcriptional programs | Detecting interferon or metabolic gene responses after hydrolase modulation |
| CRISPR knockout | Loss-of-function phenotype | Testing whether a hydrolase is required for a disease or pathway |
| CRISPR point mutation | Catalytic residue requirement | Separating enzymatic activity from protein scaffolding effects |
| Overexpression | Gain-of-function effects | Testing whether increased hydrolase activity changes signaling |
| Functional tissue assays | Muscle, cardiac or immune function | Connecting hydrolase pathways to organ-level outcomes |
Enzyme activity and substrate assays
Direct measurement of hydrolytic activity is the gold standard for GO:0016787 annotation. For PTER, N-acetyltaurine hydrolysis was linked to feeding and obesity, demonstrating that substrate-based assays can connect catalytic activity to physiology. For Gpld1, hydrolytic release of GPI-anchored proteins underlies the exercise-induced liver interferon response. These assays should be paired with dose-response and specificity controls to avoid over-interpreting broad hydrolase annotations.
Metabolomics and proteomics
Metabolomics can quantify substrates and products of hydrolase reactions, as illustrated by N-acetyltaurine measurement in PTER studies. Proteomics can identify shed or cleaved proteins downstream of hydrolases such as Gpld1. Combining these approaches with pathway analysis helps place a single hydrolase within broader metabolic and immune networks.
Transcriptomics and pathway analysis
RNA sequencing can reveal transcriptional programs downstream of hydrolase activity, including interferon responses after exercise-induced Gpld1 action. Similar designs have been used to study cardiac metabolic reprogramming by Yin-Yang 1 under exercise or pathological stress and NRF2-dependent protection after exercise-preconditioning. These datasets help distinguish direct catalytic effects from secondary transcriptional changes.
Imaging and functional readouts in tissue
Imaging and functional assays are needed to localize hydrolase activity and its consequences in tissue. Exercise and fasting paradigms combined with AMPK/SIRT1/BDNF readouts have been used to study glucose metabolism, while resistance exercise and Irisin/TGFβ1-Smad2/3 measurements have been used in myocardial fibrosis models. Muscle function and mitochondrial activity readouts have also been applied to ExermiR-129-3p and PARP1 inhibition studies. These approaches connect molecular hydrolase activity to organ-level phenotypes.
How CRISPR Can Be Used to Study GO:0016787 hydrolase activity
Knockout
CRISPR knockout is the primary way to test whether a candidate hydrolase is required for a phenotype. Deleting a hydrolase gene can reveal its contribution to metabolic control, as expected for enzymes such as PTER that regulate feeding and obesity, or to immune programs driven by Gpld1. Knockout models should be paired with substrate measurements to confirm that the catalytic function, not an unrelated role, is responsible.
Point Mutation
Point mutation of catalytic residues is essential to separate hydrolase activity from non-catalytic functions. For GO:0016787, a catalytically dead mutant can be compared with wild-type enzyme in substrate and phenotype assays. This design is especially important for broad hydrolase annotations, where binding or scaffolding effects can be mistaken for catalysis.
Knock-in
Knock-in models allow disease-associated variants or tags to be introduced at the endogenous locus. A tagged knock-in can report hydrolase expression and localization, while a variant knock-in can test whether substrate handling is altered. These models are valuable when the research question concerns allele-specific effects rather than complete loss of function.
Overexpression
Overexpression tests whether increased hydrolase activity is sufficient to drive a pathway. Exercise-induced Gpld1 provides a physiological example where raising hydrolase levels enhances liver antiviral innate immunity, and SIRT1 activation studies show that boosting a related enzyme module can mimic exercise in dystrophic muscle. Overexpression should be interpreted alongside knockout data to establish necessity and sufficiency.
How EDITGENE Supports hydrolase activity Research
Researchers studying hydrolase activity-related genes often need to determine whether a candidate gene is causally involved in a metabolic, immune or musculoskeletal phenotype, or whether it is merely correlated with disease. Answering that question requires precise genetic models that can remove, mutate, tag or overexpress the gene of interest in relevant cell types. EDITGENE provides these models together with screening and bioinformatics support so that hydrolase hypotheses can be tested with publication-grade rigor.
Contact EDITGENE today to design your custom CRISPR model for hydrolase activity research.
Frequently Asked Questions About hydrolase activity
What is GO:0016787 hydrolase activity?
GO:0016787 is a Gene Ontology molecular function term for catalysis of bond hydrolysis, including C-O, C-N, C-C and phosphoric anhydride bonds, as defined by QuickGO.
What enzymes are classified as hydrolases?
Hydrolases include proteases, lipases, phosphatases, glycosidases, nucleases and metabolic enzymes; PTER is an N-acetyltaurine hydrolase and Gpld1 is a GPI-specific phospholipase D hydrolase.
What genes are involved in hydrolase activity?
Examples supported by recent literature include PTER, which regulates feeding and obesity, and GPLD1, which mediates exercise-induced liver antiviral innate immunity.
How is hydrolase activity measured?
It is measured with substrate-based enzyme assays, often combined with metabolomics or proteomics to identify products, as shown for N-acetyltaurine hydrolysis by PTER.
Why is hydrolase activity important in disease?
Hydrolases can control metabolite signals and immune programs; PTER regulates obesity and feeding, while Gpld1 enhances antiviral innate immunity after exercise.
Can CRISPR be used to study hydrolase activity?
Yes. CRISPR knockout tests requirement, point mutation tests catalytic dependence, knock-in tests variants or tags, and overexpression tests sufficiency.
What is the difference between hydrolase activity and a specific hydrolase gene?
GO:0016787 describes a molecular function shared by many enzymes, whereas a gene such as PTER or GPLD1 encodes one specific enzyme with its own substrate and biology.
Which pathways interact with hydrolase-related metabolism?
Hydrolase-related metabolism intersects with AMPK/SIRT1/BDNF, NRF2, PARP1 and TGFβ1-Smad2/3 pathways in exercise, muscle and cardiac models.
What cell models are best for hydrolase research?
Knockout, point-mutation, knock-in and overexpression cell models are commonly used, depending on whether the question is about requirement, catalysis, variant effect or sufficiency.
How do I choose a hydrolase target for drug discovery?
Start from substrate-level evidence and disease context, then validate with CRISPR models and pathway analysis to avoid over-generalizing the broad GO:0016787 annotation.
Conclusion
Hydrolase activity (GO:0016787) is a broad but experimentally tractable molecular function that underlies metabolite signaling, immune regulation and stress adaptation. Landmark examples such as the N-acetyltaurine hydrolase PTER in feeding and obesity and the exercise-induced hydrolase Gpld1 in liver antiviral immunity show how a single hydrolytic event can shape organism-level physiology. Because the term covers many bond types and substrates, rigorous annotation requires substrate-level assays and genetic models that separate catalysis from other protein functions. Combining CRISPR knockout, point mutation, knock-in and overexpression with metabolomics, proteomics and pathway analysis provides a practical route from GO annotation to disease-relevant mechanism.
References
- 1. Wei W et al.. 2024. PTER is a N-acetyltaurine hydrolase that regulates feeding and obesity.. Nature 633(8028):182-188 PMID: 39112712
- 2. Ren T et al.. 2024. Exercise activates interferon response of the liver via Gpld1 to enhance antiviral innate immunity.. Sci Adv 10(22):eadk5011 PMID: 38809975
- 3. Giovarelli M et al.. 2025. The SIRT1 activator SRT2104 exerts exercise mimetic effects and promotes Duchenne muscular dystrophy recovery.. Cell Death Dis 16(1):259 PMID: 40195304
- 4. Ni L et al.. 2025. Exercise-preconditioning attenuates TAC-induced cardiac hypertrophy and myocardial injury through activating NRF2.. Free Radic Biol Med 239:80-90 PMID: 40681061
- 5. Zhang M et al.. 2025. Transcription factor Yin-Yang 1 governs cardiac metabolic reprogramming in response to exercise or pathological stress.. Am J Physiol Heart Circ Physiol 329(4):H899-H906 PMID: 40803696
- 6. Wang X et al.. 2025. Different Fasting Methods Combined With Running Exercise Regulate Glucose Metabolism via AMPK/SIRT1/BDNF Pathway in Mice.. Compr Physiol 15(4):e70031 PMID: 40765038
- 7. Shin YJ et al.. 2025. ExermiR-129-3p Enhances Muscle Function by Improving Mitochondrial Activity Through PARP1 Inhibition.. J Cachexia Sarcopenia Muscle 16(2):e13823 PMID: 40254925
- 8. Li H et al.. 2024. Resistance exercise upregulates Irisin expression and suppresses myocardial fibrosis following myocardial infarction via activating AMPK-Sirt1 and inactivating TGFβ1-Smad2/3.. Acta Physiol (Oxf) 240(7):e14163 PMID: 38752665
