GO:0010045 response to nickel cation: Cellular Stress Response, Genes, Functions and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:0010045 response to nickel cation describes any process that changes a cell or organism's state or activity in response to a nickel cation stimulus.
• Nickel is both an essential trace element and a toxic metal; cells respond by altering metal uptake, sequestration, efflux, and gene expression.
• Plants such as Arabidopsis thaliana and Betula papyrifera reprogram metal transporters and stress genes under nickel exposure.
• Microbes use dedicated resistance systems, including efflux pumps and metal-binding proteins, to survive nickel stress.
• Host-defense proteins such as calprotectin sequester nickel and other transition metals to limit microbial growth.
• CRISPR knockout, knock-in, point-mutation, and overexpression models enable causal testing of genes involved in nickel response.
Description
Nickel is a transition metal that is essential in trace amounts for some enzymes but toxic at elevated concentrations. Cells and organisms respond to nickel cations through coordinated changes in gene expression, metal transport, and stress defense, a process captured by the Gene Ontology term GO:0010045 response to nickel cation. This term is used to annotate genes and pathways that mediate cellular adaptation to nickel exposure, including metal uptake, sequestration, and efflux systems. Understanding this response is important because nickel is widespread in industrial environments, soils, and biological systems, and its dysregulation can affect plant growth, microbial survival, and host-pathogen interactions. Transcriptomic studies in white birch and mussels have revealed that nickel stress induces complex gene expression programs involving heat shock proteins, metal transporters, and oxidative stress genes. In Arabidopsis, nickel accumulation is induced under zinc deficiency, showing that nickel response is integrated with other metal homeostasis pathways. These findings make GO:0010045 a valuable framework for researchers studying metal toxicity, bioremediation, and metal-related disease mechanisms.
response to nickel cation At A Glance
| GO ID | GO:0010045 |
|---|---|
| GO term | response to nickel cation |
| Ontology | biological_process |
| Synonym | response to nickel |
| Major function | Cellular and organismal adaptation to nickel cation exposure, including changes in gene expression, metal transport, and stress responses |
| Related metals | Nickel, cadmium, cobalt, zinc |
| Example organisms | Arabidopsis thaliana, Betula papyrifera, Mytilus galloprovincialis, microbes |
| Key protein families | Metal transporters, efflux pumps, metal-binding proteins, heat shock proteins |
What Is GO:0010045?
GO:0010045 response to nickel cation is defined as any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a nickel cation stimulus. In simpler terms, it covers everything a cell does when it detects nickel ions, from turning genes on or off to adjusting metal transport and stress defenses.
Why Is response to nickel cation Important in Cell Biology?
GO:0010045 is important because nickel exposure affects human health, agriculture, and microbial ecology. Nickel is a common environmental contaminant and an occupational hazard, and its cellular response mechanisms determine whether cells survive, adapt, or die. In plants, nickel response pathways influence metal accumulation and tolerance, which is relevant for phytoremediation and crop safety. In microbes, nickel resistance systems are models for understanding metal homeostasis and antibiotic resistance. In host-pathogen interactions, nickel sequestration by calprotectin is part of nutritional immunity, linking nickel response to infection control. Thus, studying GO:0010045 provides insights into fundamental metal biology and practical applications in biotechnology and medicine.
• Nickel is an essential cofactor in some enzymes but toxic in excess, requiring tightly regulated response pathways.
• Nickel exposure induces oxidative stress and heat shock responses in aquatic organisms such as mussels.
• Plants respond to nickel by altering metal transporter expression and accumulation, as shown in Arabidopsis and white birch.
• Microbial nickel resistance involves efflux pumps and metal-binding proteins that are prototypes for bioremediation.
• Calprotectin-mediated nickel sequestration is a host-defense mechanism against pathogens.
• Nickel bioavailability can be predicted using microbial biosensors, linking environmental chemistry to biological response.
• Dysregulated nickel response may contribute to metal-related carcinogenesis and inflammatory diseases.
• CRISPR-based models allow precise dissection of genes required for nickel tolerance and accumulation.
• Understanding nickel response supports development of metal-tolerant crops and engineered microbes.
• Nickel response pathways intersect with zinc and cobalt homeostasis, revealing shared metal regulatory networks.
What Happens During response to nickel cation?
Nickel sensing and signal transduction
In simple terms: Cells first detect nickel ions and trigger a signaling cascade.
When nickel cations enter the cell or bind to surface sensors, they can alter the activity of metal-responsive transcription factors and signaling proteins. In microbes, nickel resistance operons are often controlled by metal-sensing repressors that derepress gene expression upon nickel binding. In plants, nickel exposure modulates the expression of metal transporter genes and stress-related transcription factors, as seen in Betula papyrifera. This sensing step is critical for initiating the appropriate adaptive response.
Transcriptional reprogramming
In simple terms: The cell turns many genes on or off to cope with nickel.
Nickel stress induces widespread changes in gene expression. Transcriptome analysis of white birch exposed to nickel revealed differential expression of genes involved in metal transport, oxidative stress, and heat shock. In the mussel Mytilus galloprovincialis, nickel and heat stress induced overlapping and distinct transcriptomic responses, including heat shock proteins and metallothioneins. These transcriptional changes help the cell manage nickel toxicity and maintain metal homeostasis.
Metal sequestration and efflux
In simple terms: Cells lock up or pump out nickel to reduce its toxicity.
Once nickel is inside the cell, it can be sequestered by metal-binding proteins such as metallothioneins or exported by efflux pumps. In microbes, resistance to nickel often involves cation efflux systems that pump nickel out of the cell. In host-pathogen interactions, the host protein calprotectin chelates nickel and other transition metals, limiting their availability to pathogens. These sequestration and efflux mechanisms are central to the response to nickel cation.
Oxidative stress and damage repair
In simple terms: Nickel can cause oxidative damage, so cells activate repair and antioxidant systems.
Nickel exposure can lead to the generation of reactive oxygen species, which damage proteins, lipids, and DNA. In mussels, nickel stress induced genes associated with oxidative stress response and protein folding. Cells respond by upregulating antioxidant enzymes and chaperones to repair damage and maintain proteostasis. This component of the nickel response is essential for survival under metal stress.
Cross-talk with other metal homeostasis pathways
In simple terms: Nickel response is connected to how cells handle zinc, cobalt, and other metals.
Nickel is not handled in isolation; its uptake and detoxification intersect with zinc, cobalt, and cadmium pathways. In Arabidopsis thaliana, nickel accumulation is induced under zinc deficiency, indicating that nickel uptake is regulated by zinc status. Microbial resistance systems often confer cross-resistance to cadmium, cobalt, and zinc, suggesting shared transport or detoxification mechanisms. This cross-talk ensures balanced metal homeostasis.
Key Genes Involved in GO:0010045 response to nickel cation
The following genes and proteins are representative of those involved in response to nickel cation across plants, microbes, and animals, based on published transcriptomic and functional studies.
| Gene | Major Role | Research Relevance |
|---|---|---|
| ZIP transporters (e.g., AtZIP1, AtZIP2) | Metal uptake, including nickel under zinc deficiency | Studied in Arabidopsis for nickel accumulation |
| NRAMP transporters | Divalent metal transport | Candidate for nickel uptake in plants and microbes |
| HMA (heavy metal ATPase) pumps | Metal efflux | Involved in nickel and other metal detoxification |
| Metallothioneins | Metal sequestration | Induced by nickel in mussels and other organisms |
| Heat shock proteins (HSPs) | Protein folding and stress protection | Upregulated under nickel stress in mussels and birch |
| Calprotectin (S100A8/S100A9) | Nickel sequestration in host defense | Studied for nutritional immunity against pathogens |
| RcnR (nickel-responsive repressor) | Nickel-dependent transcriptional regulation | Model for microbial nickel sensing |
| NikABCDE transporter | Nickel uptake in bacteria | Studied for nickel homeostasis and pathogenesis |
| CzcCBA efflux system | Cobalt, zinc, cadmium, nickel efflux | Prototype for metal resistance |
| Catalase | Antioxidant defense | Induced under nickel stress |
| Superoxide dismutase | Antioxidant defense | Protects against nickel-induced oxidative stress |
| Glutathione S-transferase | Detoxification and oxidative stress response | Upregulated in nickel-treated organisms |
| Betula papyrifera nickel-responsive genes | Various metal and stress functions | Transcriptome resource for nickel response |
| Mytilus galloprovincialis nickel-responsive genes | Stress and metal handling | Marine sentinel for nickel toxicity |
| AtZIP4 | Zinc/nickel transport | Potential role in nickel accumulation |
| AtMTP1 | Metal tolerance protein | Vacuolar sequestration of metals |
| Ferritin | Iron storage, oxidative stress mitigation | May be affected by nickel stress |
| Thioredoxin | Redox regulation | Part of nickel-induced oxidative response |
How Is response to nickel cation Regulated?
The response to nickel cation is regulated at multiple levels. In microbes, nickel-responsive repressors such as RcnR directly sense nickel and control the expression of resistance genes. In plants, nickel exposure modulates transcription factors and metal transporters, and cross-talk with zinc deficiency signaling influences nickel accumulation. In animals, nickel can activate stress-responsive pathways including heat shock and oxidative stress responses. Host-defense proteins like calprotectin regulate nickel availability during infection, acting as a form of nutritional immunity. These regulatory layers ensure that cells mount an appropriate response to nickel while maintaining essential metal homeostasis.
response to nickel cation and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| S100A8/S100A9 (calprotectin) | Infection and nutritional immunity | Knockout mice or cell lines to test nickel sequestration |
| Metallothioneins | Metal toxicity and oxidative stress | Overexpression in cell lines to assess nickel protection |
| HSP70 | Stress response and cancer | Knockdown in cancer cells to study nickel sensitivity |
| NRAMP1 (SLC11A1) | Susceptibility to intracellular pathogens | Macrophage knockout models for nickel transport |
| RcnR homologs | Bacterial nickel resistance | Bacterial knockout for nickel sensitivity assays |
Nickel toxicity and carcinogenesis
Nickel compounds are classified as carcinogens, and chronic exposure can lead to lung and nasal cancers. The cellular response to nickel cation, including oxidative stress and DNA damage repair, influences susceptibility to nickel-induced carcinogenesis. Understanding GO:0010045 helps identify genes that protect against or promote nickel toxicity.
Infection and nutritional immunity
Host-defense protein calprotectin sequesters nickel and other transition metals to starve pathogens. Pathogens respond by expressing nickel uptake systems, making the interplay between host nickel sequestration and microbial nickel response a key determinant of infection outcome. This links GO:0010045 to infectious disease biology.
Metal-related neurodegeneration
Dysregulation of transition metal homeostasis, including nickel, has been implicated in neurodegenerative processes, although direct evidence for nickel in neurodegeneration is limited. The oxidative stress component of nickel response may contribute to neuronal damage. Further research is needed to clarify these connections.
From response to nickel cation-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Does gene X mediate nickel uptake? | CRISPR knockout in Arabidopsis or yeast, followed by nickel exposure |
| Does point mutation in metal-binding site alter nickel response? | CRISPR point mutation knock-in in cell lines |
| Does overexpression of metallothionein protect against nickel toxicity? | CRISPR overexpression or lentiviral overexpression in mammalian cells |
| Does tagged metal transporter localize differently under nickel stress? | CRISPR knock-in of fluorescent tag |
| Does microbial efflux pump confer nickel resistance? | CRISPR knockout or complementation in bacteria |
| Does calprotectin limit nickel availability to pathogens? | Knockout mice or macrophage models |
How to Study the response to nickel cation Process
| Method | What It Measures | Typical Application |
|---|---|---|
| RNA-seq | Global gene expression changes | Identify nickel-responsive genes in plants or animals |
| Proteomics | Protein abundance and modifications | Discover nickel-binding proteins |
| CRISPR knockout screen | Gene essentiality under nickel stress | Find novel nickel resistance genes |
| Reporter biosensor | Bioavailable nickel | Environmental monitoring |
| ICP-MS | Metal content | Measure nickel accumulation in cells or tissues |
| qRT-PCR | Expression of specific genes | Validate transcriptomic hits |
| Western blot | Protein levels | Confirm stress protein induction |
| Metal-binding assays | Binding affinity | Characterize nickel-protein interactions |
Transcriptomics (RNA-seq)
RNA sequencing is widely used to profile gene expression changes in response to nickel. Studies in white birch and mussels used transcriptomics to identify nickel-responsive genes and pathways. This method reveals the breadth of the response to nickel cation and helps generate hypotheses about key regulators.
Proteomics and metal-binding assays
Proteomic approaches can identify proteins that bind nickel or change in abundance under nickel stress. Metal-binding assays, such as isothermal titration calorimetry, can quantify nickel binding to proteins like calprotectin. These methods complement transcriptomics by measuring protein-level changes.
Reporter assays and biosensors
Microbial biosensors have been developed to predict bioavailable nickel in soil and its transfer to plants. Such reporter systems can be used to monitor nickel response activation in real time. They are valuable for environmental monitoring and mechanistic studies.
CRISPR screening and functional genomics
CRISPR knockout libraries enable unbiased identification of genes required for survival under nickel stress. Pooled screens can be combined with next-generation sequencing to pinpoint nickel-resistance or sensitivity genes. This approach is powerful for discovering novel components of GO:0010045.
How CRISPR Can Be Used to Study GO:0010045 response to nickel cation
Knockout
CRISPR knockout is used to delete candidate genes involved in nickel response, such as metal transporters or stress proteins, to test their role in nickel tolerance or accumulation. For example, knocking out a putative nickel efflux pump in bacteria can increase nickel sensitivity. In plants, knockout of ZIP transporters can alter nickel uptake.
Point Mutation
CRISPR point mutation allows precise alteration of metal-binding residues in proteins to dissect their function in nickel response. For instance, mutating a nickel-coordinating cysteine in a metallothionein can abolish its protective effect. This approach provides mechanistic insights beyond simple knockouts.
Knock-in
Knock-in of tags or reporter genes enables visualization and tracking of proteins involved in nickel response. For example, knocking in a fluorescent tag on a metal transporter allows live-cell imaging of its localization under nickel stress. Knock-in can also be used to introduce disease-associated mutations.
Overexpression
CRISPR activation or cDNA overexpression can increase the levels of protective proteins such as metallothioneins or antioxidant enzymes to test whether they confer nickel resistance. Overexpression models are useful for gain-of-function studies and for engineering metal-tolerant organisms.
How EDITGENE Supports response to nickel cation Research
Researchers studying response to nickel cation-related genes often need to determine whether a candidate gene is causally involved in nickel tolerance, accumulation, or toxicity. EDITGENE provides comprehensive CRISPR services to create precise cell and animal models for such functional studies.
Contact EDITGENE today to design your custom CRISPR model for response to nickel cation research.
Frequently Asked Questions About response to nickel cation
What is GO:0010045 response to nickel cation?
GO:0010045 is a Gene Ontology biological process term describing any process that changes a cell or organism's state or activity in response to a nickel cation stimulus.
What genes are involved in response to nickel cation?
Genes involved include metal transporters (ZIP, NRAMP), metallothioneins, heat shock proteins, and microbial efflux pumps.
How do cells respond to nickel stress?
Cells respond by altering gene expression, sequestering or effluxing nickel, and activating oxidative stress defenses.
Why is nickel toxic to cells?
Nickel can generate reactive oxygen species and interfere with metal homeostasis, leading to oxidative damage.
What is the role of calprotectin in nickel response?
Calprotectin sequesters nickel and other transition metals, limiting their availability to pathogens as part of nutritional immunity.
How do plants respond to nickel exposure?
Plants modulate metal transporter expression and accumulate nickel, as shown in Arabidopsis and white birch.
Can CRISPR be used to study nickel response genes?
Yes, CRISPR knockout, knock-in, and overexpression models allow functional testing of genes involved in nickel response.
What methods are used to study response to nickel cation?
Common methods include RNA-seq, proteomics, CRISPR screens, and metal biosensors.
Is nickel essential or toxic?
Nickel is essential in trace amounts for some enzymes but toxic at higher concentrations, so cells tightly regulate its levels.
What diseases are linked to nickel response?
Nickel exposure is linked to cancer and oxidative stress-related diseases, and nickel sequestration affects infection outcomes.
Conclusion
GO:0010045 response to nickel cation encompasses the diverse cellular strategies for coping with nickel exposure, from sensing and transcriptional reprogramming to sequestration and efflux. This process is relevant across plants, microbes, and animals, with implications for environmental health, infectious disease, and cancer biology. CRISPR-based models and functional genomics are powerful tools to dissect the underlying mechanisms and identify therapeutic or biotechnological targets.
References
- 1. Nishida S et al.. 2015. Induction of Nickel Accumulation in Response to Zinc Deficiency in Arabidopsis thaliana.. Int J Mol Sci 16(5):9420-30 PMID: 25923075
- 2. Theriault G et al.. 2016. Comprehensive Transcriptome Analysis of Response to Nickel Stress in White Birch (Betula papyrifera).. PLoS One 11(4):e0153762 PMID: 27082755
- 3. Lal M et al.. 2024. His-tag based supramolecular biopolymerization.. Sci Rep 14(1):28332 PMID: 39550390
- 5. Nies DH. 1992. Resistance to cadmium, cobalt, zinc, and nickel in microbes.. Plasmid 27(1):17-28 PMID: 1741458
- 6. Zygiel EM et al.. 2018. Transition Metal Sequestration by the Host-Defense Protein Calprotectin.. Annu Rev Biochem 87:621-643 PMID: 29925260
- 7. Tibazarwa C et al.. 2001. A microbial biosensor to predict bioavailable nickel in soil and its transfer to plants.. Environ Pollut 113(1):19-26 PMID: 11351758
- 8. Mohamed B et al.. 2014. Transcriptomic responses to heat stress and nickel in the mussel Mytilus galloprovincialis.. Aquat Toxicol 148:104-12 PMID: 24468838
