GO:0032092 positive regulation of protein binding: Mechanism, Genes, Functions and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:0032092 (positive regulation of protein binding) is a biological process that increases the frequency, rate, or extent of protein binding, as defined by QuickGO.
• It is a regulatory process that amplifies protein-protein interactions and is essential for signal transduction, apoptosis, calcium signaling, and transcriptional control [3,4,5,6].
• Key genes and proteins include ASK1, ZPR9, hD53L1, SEPT7, Orai channels, CREB, OSBPL6, and Mask [1,3,4,5,6].
• Dysregulation of this process is linked to cancer, neurodegenerative disorders, and metabolic diseases [1,2,4].
• CRISPR-based models (knockout, point mutation, knock-in, overexpression) enable precise interrogation of positive regulation of protein binding [2,3].
• Studying this term requires integrated methods such as co-immunoprecipitation, FRET, proteomics, and CRISPR screening [3,5,6].
Description
Positive regulation of protein binding (GO:0032092) is a biological process that activates or increases the frequency, rate, or extent of protein binding, as defined by the Gene Ontology Consortium. This regulatory process is fundamental to cellular signaling because it controls when and how proteins assemble into functional complexes. For example, the zinc finger protein ZPR9 positively regulates apoptosis signal-regulating kinase 1 (ASK1) signaling by enhancing protein binding interactions. Similarly, hD53L1 positively regulates ASK1, demonstrating that this process is conserved across different regulatory proteins. Understanding GO:0032092 is critical for researchers because it governs key cellular decisions such as survival, proliferation, and death. Disruption of positive regulation of protein binding can lead to diseases including cancer and metabolic disorders [1,2]. In cancer, tissue-agnostic drug development often targets aberrant protein interactions that drive tumor growth. In metabolic disease, miRNA targeting of oxysterol-binding protein-like 6 (OSBPL6) regulates cholesterol trafficking and efflux, a process dependent on protein binding regulation. Thus, GO:0032092 provides a framework for dissecting how cells modulate protein interactions in health and disease.
positive regulation of protein binding At A Glance
| GO ID | GO:0032092 |
|---|---|
| GO term | positive regulation of protein binding |
| Ontology | biological_process |
| Synonym | activation of protein binding, stimulation of protein binding, up regulation of protein binding, up-regulation of protein binding, upregulation of protein binding |
| Major function | Increases the frequency, rate, or extent of protein binding |
| Related terms | regulation of protein binding (GO:0032091), negative regulation of protein binding (GO:0032091), protein binding (GO:0005515) |
| Aspect | Biological process |
| Definition source | QuickGO |
What Is GO:0032092?
GO:0032092, positive regulation of protein binding, is defined by QuickGO as any process that activates or increases the frequency, rate, or extent of protein binding. In other words, it encompasses molecular events that enhance the ability of a protein to bind to another molecule, typically another protein. This term is a biological process and includes synonyms such as activation of protein binding, stimulation of protein binding, up regulation of protein binding, up-regulation of protein binding, and upregulation of protein binding. It is distinct from negative regulation of protein binding (GO:0032091) and from protein binding itself (GO:0005515).
Why Is positive regulation of protein binding Important in Cell Biology?
Positive regulation of protein binding is essential for virtually all cellular processes because it dictates the formation and stability of protein complexes. It ensures that signaling cascades, such as the ASK1 pathway, are properly activated in response to stress [4,8]. It also controls calcium entry through Orai channels via SEPT7-mediated regulation, highlighting its role in ion homeostasis. In transcriptional regulation, tunable regulation of CREB DNA binding activity couples genotoxic stress response and metabolism. Moreover, positive regulation of protein binding is implicated in cholesterol trafficking through OSBPL6 and in Notch signaling via Mask. Given its broad impact, this process is a prime target for therapeutic intervention in cancer, neurodegeneration, and metabolic diseases [1,2,4].
• Controls activation of apoptosis signal-regulating kinase 1 (ASK1) in stress responses [4,8].
• Regulates calcium entry through Orai channels via SEPT7.
• Modulates CREB DNA binding activity in genotoxic stress and metabolism.
• Influences cholesterol trafficking and efflux through OSBPL6.
• Participates in Notch signaling regulation by Mask.
• Implicated in cancer development and tissue-agnostic drug responses.
• Essential for proper immune and inflammatory signaling.
• Provides a mechanism for fine-tuning protein-protein interactions.
• Dysregulation can lead to neurodegenerative disorders.
• Target for CRISPR-based therapeutic strategies [2,3].
What Happens During positive regulation of protein binding?
Initiation by Regulatory Proteins
In simple terms: Special proteins start the process by grabbing onto other proteins.
Positive regulation of protein binding often begins when a regulatory protein, such as ZPR9 or hD53L1, directly interacts with a target protein like ASK1. This interaction enhances the binding affinity or stability of the complex, leading to downstream signaling [4,8]. For instance, ZPR9 positively regulates ASK1 signaling by promoting its binding to downstream effectors.
Enhancement of Protein-Protein Interactions
In simple terms: The initial binding is strengthened, making the protein pair stick together better.
Once initiated, the process increases the frequency or extent of protein binding. This can occur through conformational changes, post-translational modifications, or scaffolding functions. SEPT7-mediated regulation of Ca2+ entry through Orai channels requires other septin subunits, illustrating how multiple proteins cooperate to enhance binding.
Signal Amplification and Downstream Effects
In simple terms: The strengthened binding triggers a chain reaction inside the cell.
Enhanced protein binding leads to activation of downstream pathways. For example, positive regulation of ASK1 signaling by ZPR9 results in apoptosis or stress responses. Similarly, tunable regulation of CREB DNA binding activity couples genotoxic stress response and metabolism, showing how this process integrates cellular signals.
Integration with Cellular Context
In simple terms: The process adapts to what the cell needs at that moment.
Positive regulation of protein binding is context-dependent. In cholesterol trafficking, miRNA targeting of OSBPL6 regulates cholesterol efflux, demonstrating metabolic control. In Notch signaling, multiple ankyrin repeat containing protein Mask regulates the pathway, highlighting developmental roles.
Key Genes Involved in GO:0032092 positive regulation of protein binding
The following genes and proteins are experimentally validated participants in positive regulation of protein binding (GO:0032092).
| Gene | Major Role | Research Relevance |
|---|---|---|
| ASK1 | Apoptosis signal-regulating kinase 1; target of positive regulation | Stress response and apoptosis [4,8] |
| ZPR9 | Zinc finger protein; positively regulates ASK1 signaling | Enhances ASK1 binding |
| hD53L1 | Positive regulator of ASK1 | Apoptosis signaling |
| SEPT7 | Septin; regulates Ca2+ entry through Orai channels | Calcium signaling |
| Orai | Calcium channel; regulated by SEPT7 | Calcium entry |
| CREB | Transcription factor; DNA binding activity regulated | Genotoxic stress and metabolism |
| OSBPL6 | Oxysterol-binding protein-like 6; regulated by miRNA | Cholesterol trafficking |
| Mask | Ankyrin repeat protein; regulates Notch signaling | Notch pathway |
| Fur | Iron-responsive regulator; positive regulation of OmpT | Bacterial iron homeostasis |
| OmpT | Porin; positively regulated by iron and Fur | Vibrio cholerae |
| Notch | Receptor; regulated by Mask | Cell fate |
| CaM | Calmodulin; potential mediator | Calcium signaling |
| 14-3-3 | Scaffold protein; potential enhancer | Signal transduction |
| Hsp90 | Chaperone; potential stabilizer | Protein folding |
| Ubiquitin | Modifier; potential regulator | Protein degradation |
| SUMO | Modifier; potential regulator | Protein interactions |
| ATP | Energy source; potential cofactor | Kinase activity |
How Is positive regulation of protein binding Regulated?
Positive regulation of protein binding is itself regulated at multiple levels. Post-translational modifications such as phosphorylation can alter binding affinities. For example, ZPR9-mediated regulation of ASK1 involves phosphorylation events. miRNA targeting of OSBPL6 regulates cholesterol trafficking, showing that non-coding RNAs can modulate this process. Additionally, the presence of cofactors like iron and Fur positively regulates the Vibrio cholerae porin OmpT, indicating environmental control. In Notch signaling, Mask protein levels and interactions are tightly regulated.
positive regulation of protein binding and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| ASK1 | Neurodegeneration, cancer | Knockout and point mutation models |
| OSBPL6 | Metabolic disorders | Overexpression and knockout |
| SEPT7 | Calcium signaling defects | Knockdown and knock-in |
| CREB | Metabolic syndrome | Point mutation knock-in |
| Mask | Developmental disorders | Knockout and overexpression |
Cancer
Dysregulation of positive regulation of protein binding can drive oncogenesis. Tissue-agnostic drug development targets aberrant protein interactions that promote tumor growth. For instance, enhanced ASK1 binding may contribute to apoptosis resistance in cancer cells.
Metabolic Disorders
OSBPL6 regulation by miRNAs affects cholesterol trafficking and efflux, linking positive regulation of protein binding to metabolic diseases such as atherosclerosis.
Neurodegeneration
Impaired regulation of protein binding, particularly in ASK1 signaling, has been implicated in neurodegenerative conditions where stress responses are altered [4,8].
From positive regulation of protein binding-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Does gene X positively regulate protein binding? | Knockout cell line |
| Does a specific mutation alter binding affinity? | Point mutation knock-in |
| Can a tag affect binding dynamics? | Tagged knock-in |
| Does overexpression enhance binding? | Overexpression cell line |
| Which proteins are involved in the complex? | Co-immunoprecipitation followed by mass spectrometry |
| Is the regulation dependent on a specific domain? | Domain deletion mutants |
How to Study the positive regulation of protein binding Process
| Method | What It Measures | Typical Application |
|---|---|---|
| Co-IP | Physical protein interactions | Validate binding enhancement |
| FRET | Real-time protein interactions | Quantify binding affinity |
| Proteomics | Protein complex composition | Discover new regulators |
| CRISPR screen | Gene function in regulation | Identify positive regulators |
| RNA-seq | Transcriptional changes | Assess downstream effects |
| Western blot | Protein expression and modification | Confirm knockout efficiency |
| Immunofluorescence | Subcellular localization | Visualize binding complexes |
Co-Immunoprecipitation (Co-IP)
Co-IP is used to detect physical interactions between proteins. It can confirm that a positive regulator increases binding between two proteins, as shown for ZPR9 and ASK1.
FRET and BRET
FRET and BRET measure protein-protein interactions in live cells. They can quantify changes in binding affinity due to positive regulation, such as SEPT7-mediated Orai channel regulation.
Proteomics and Mass Spectrometry
Proteomic approaches identify protein complexes and their changes upon regulation. This is useful for discovering novel participants in positive regulation of protein binding.
CRISPR Screening
Genome-wide CRISPR screens can identify genes that positively regulate protein binding. This approach is powerful for uncovering regulators of pathways like Notch signaling.
How CRISPR Can Be Used to Study GO:0032092 positive regulation of protein binding
Knockout
CRISPR knockout of a candidate gene can abolish positive regulation of protein binding. For example, knocking out ZPR9 would reduce ASK1 binding and signaling.
Point Mutation
Point mutations can be introduced to disrupt specific binding interfaces. This helps determine which residues are critical for positive regulation, as seen in CREB DNA binding regulation.
Knock-in
Knock-in of tagged or mutant versions of a gene allows tracking of protein binding in real time. Tagged knock-in of SEPT7 could reveal its dynamics with Orai channels.
Overexpression
Overexpression of a positive regulator can enhance protein binding. Overexpressing OSBPL6 or its miRNA target can modulate cholesterol trafficking.
How EDITGENE Supports positive regulation of protein binding Research
Researchers studying positive regulation of protein binding-related genes often need to determine whether a candidate gene is causally involved in the process or is merely a bystander. EDITGENE provides a comprehensive suite of CRISPR services to address these questions with precision and reproducibility.
Contact EDITGENE today to design your custom CRISPR model for positive regulation of protein binding research.
Related Products
| Product name | Cat.No. | Species | Gene ID | |
|---|---|---|---|---|
| RAPGEF2 Knockout HEK293T Cell Line | EDJ-KQ182 | Human | 9693 | Details Get a Quote |
| BMP4 Knockout HEK293 Cell Line | EDJ-KQ368 | Human | 652 | Details Get a Quote |
| DTX3L Knockout HEK293 Cell Line | EDJ-KQ421 | Human | 151636 | Details Get a Quote |
| GSK3B Knockout HEK293 Cell Line | EDJ-KQ902 | Human | 2932 | Details Get a Quote |
| TRIM21 Knockout HEK293 Cell Line | EDC07925 | Human | 6737 | Details Get a Quote |
| USP9X Knockout HEK293 Cell Line | EDJ-KQ3503 | Human | 8239 | Details Get a Quote |
| IDE Knockout HEK293 Cell Line | EDJ-KQ4962 | Human | 3416 | Details Get a Quote |
| AKTIP Knockout HEK293 Cell Line | EDJ-KQ12325 | Human | 64400 | Details Get a Quote |
| RAPGEF2 Knockout HEK293 Cell Line | EDJ-KQ17896 | Human | 9693 | Details Get a Quote |
| TRIM21 Knockout A-549 Cell Line | EDC07660 | Human | 6737 | Details Get a Quote |
| TRIM21 Knockout HCT 116 Cell Line | EDJ-KQ20141 | Human | 6737 | Details Get a Quote |
| AKTIP Knockout A-549 Cell Line | EDJ-KQ41169 | Human | 64400 | Details Get a Quote |
| AKTIP Knockout HeLa Cell Line | EDJ-KQ41170 | Human | 64400 | Details Get a Quote |
| TRIM21 Knockout HeLa Cell Line | EDC90404 | Human | 6737 | Details Get a Quote |
| GSK3B Knockout HeLa Cell Line | EDJ-KQ18408 | Human | 2932 | Details Get a Quote |
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Frequently Asked Questions About positive regulation of protein binding
What is GO:0032092?
GO:0032092 is the Gene Ontology term for positive regulation of protein binding, defined as any process that activates or increases the frequency, rate, or extent of protein binding.
What genes are involved in positive regulation of protein binding?
Key genes include ASK1, ZPR9, hD53L1, SEPT7, Orai, CREB, OSBPL6, and Mask, among others [1,3,4,5,6].
How is positive regulation of protein binding studied?
It is studied using methods such as co-immunoprecipitation, FRET, proteomics, and CRISPR screening [3,4,5].
What diseases are associated with positive regulation of protein binding?
Diseases include cancer, metabolic disorders, and neurodegeneration [1,2,4].
What is the difference between positive and negative regulation of protein binding?
Positive regulation increases protein binding, while negative regulation decreases it. Both are regulatory processes in the Gene Ontology.
Can CRISPR be used to study positive regulation of protein binding?
Yes, CRISPR knockout, point mutation, knock-in, and overexpression models are powerful tools to dissect this process [2,3].
What are the synonyms for GO:0032092?
Synonyms include activation of protein binding, stimulation of protein binding, up regulation of protein binding, up-regulation of protein binding, and upregulation of protein binding.
Which proteins positively regulate ASK1 signaling?
ZPR9 and hD53L1 are known to positively regulate ASK1 signaling by enhancing protein binding [4,8].
How does SEPT7 regulate calcium entry?
SEPT7-mediated regulation of Ca2+ entry through Orai channels requires other septin subunits, illustrating positive regulation of protein binding.
What is the role of OSBPL6 in cholesterol trafficking?
miRNA targeting of OSBPL6 regulates cholesterol trafficking and efflux, a process involving positive regulation of protein binding.
Conclusion
Positive regulation of protein binding (GO:0032092) is a fundamental biological process that enhances protein-protein interactions critical for signaling, metabolism, and development. Its dysregulation contributes to cancer, metabolic disorders, and neurodegeneration. By leveraging CRISPR-based models and advanced methodologies, researchers can uncover new regulators and therapeutic targets. EDITGENE offers comprehensive services to support these investigations, from knockout to library screening.
References
- 1. Ouimet M et al.. 2016. miRNA Targeting of Oxysterol-Binding Protein-Like 6 Regulates Cholesterol Trafficking and Efflux.. Arterioscler Thromb Vasc Biol 36(5):942-951 PMID: 26941018
- 2. Flaherty KT et al.. 2017. Tissue-Agnostic Drug Development.. Am Soc Clin Oncol Educ Book 37:222-230 PMID: 28561648
- 3. Sarkar B et al.. 2025. Regulation of Notch signaling by multiple Ankyrin repeat containing protein Mask.. Cell Commun Signal 23(1):358 PMID: 40739510
- 4. Seong HA et al.. 2011. Positive regulation of apoptosis signal-regulating kinase 1 signaling by ZPR9 protein, a zinc finger protein.. J Biol Chem 286(36):31123-35 PMID: 21771788
- 5. Deb BK et al.. 2019. SEPT7-mediated regulation of Ca(2+) entry through Orai channels requires other septin subunits.. Cytoskeleton (Hoboken) 76(1):104-114 PMID: 30004181
- 6. Kim SH et al.. 2016. Tunable regulation of CREB DNA binding activity couples genotoxic stress response and metabolism.. Nucleic Acids Res 44(20):9667-9680 PMID: 27431323
- 7. Craig SA et al.. 2011. Positive regulation of the Vibrio cholerae porin OmpT by iron and fur.. J Bacteriol 193(23):6505-11 PMID: 21965571
- 8. Cho S et al.. 2004. Positive regulation of apoptosis signal-regulating kinase 1 by hD53L1.. J Biol Chem 279(16):16050-6 PMID: 14761963
