GO:0071329 cellular response to sucrose stimulus: Signaling Pathway, Genes, Functions and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:0071329 cellular response to sucrose stimulus describes any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a sucrose stimulus.
• Sucrose acts as both a metabolic substrate and a signaling molecule, and its cellular response is studied in plants, animals, and microorganisms.
• Key genes involved include sucrose transporters (SUT/SUC), invertases (INV), sucrose phosphate synthase (SPS), and trehalose-6-phosphate synthase (TPS).
• The response is regulated by sugar-sensing pathways such as SnRK1, TOR, and hexokinase-dependent signaling.
• Dysregulation of sucrose response is linked to metabolic disorders, cancer, and plant developmental defects.
• CRISPR knockout, point mutation, knock-in, and overexpression models are essential to dissect gene function in this process.
Description
The Gene Ontology term GO:0071329, cellular response to sucrose stimulus, is defined as any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a sucrose stimulus. Sucrose, a disaccharide of glucose and fructose, is not only a primary product of photosynthesis and a major transport sugar in plants but also a signaling molecule that modulates cellular metabolism, growth, and development. In non-plant systems, sucrose can influence cellular processes such as taste perception and metabolic regulation. Understanding this response is critical for researchers in plant biology, nutrition, and metabolic disease, as it connects sugar sensing to gene expression, enzyme activity, and cellular fate. The study of this term has been advanced by techniques such as ribosome profiling, which captures genome-wide translation changes in response to sucrose. This article synthesizes authoritative GO data and verified literature to provide a research-grade overview of the genes, mechanisms, and experimental models associated with GO:0071329.
cellular response to sucrose stimulus At A Glance
| GO ID | GO:0071329 |
|---|---|
| GO term | cellular response to sucrose stimulus |
| Ontology | biological_process |
| Synonym | none |
| Major function | Cellular adaptation to sucrose via changes in gene expression, enzyme activity, and secretion |
| Definition source | QuickGO |
| Related processes | Sugar sensing, carbon metabolism, signal transduction |
| Taxonomic scope | All organisms responding to sucrose |
What Is GO:0071329?
In our own words, GO:0071329 cellular response to sucrose stimulus refers to the collection of cellular events triggered when a cell encounters sucrose. These events include changes in gene expression, enzyme production, secretion, movement, and other activities that allow the cell to adapt to or utilize sucrose. The response is not limited to metabolism; it encompasses signaling cascades that alter cellular behavior. The term is a biological process and is distinct from organism-level responses to sucrose.
Why Is cellular response to sucrose stimulus Important in Cell Biology?
GO:0071329 is important because sucrose is a central metabolite and signal in many organisms, and its cellular response underpins processes ranging from plant growth and yield to human metabolic health. Dysregulation of sucrose sensing contributes to diseases such as diabetes, obesity, and cancer, where altered sugar metabolism supports proliferation. In plants, sucrose signaling affects development, stress responses, and crop productivity. Therefore, understanding this term provides mechanistic insights that can be targeted for therapeutic or agricultural interventions.
• Sucrose is a key transport sugar and signaling molecule in plants, influencing growth and development.
• In animals, sucrose sensing affects taste perception and metabolic regulation.
• Altered sucrose response is implicated in metabolic disorders like diabetes and obesity.
• Sucrose signaling intersects with cancer metabolism, where sugar uptake supports proliferation.
• Plant sucrose response genes are targets for improving crop yield and stress tolerance.
• The process is conserved across kingdoms, making model organisms valuable for study.
• Ribosome profiling reveals translational control during sucrose response.
• CRISPR screens can identify novel regulators of sucrose response.
What Happens During cellular response to sucrose stimulus?
Sucrose Perception and Transport
In simple terms: The cell first detects sucrose and brings it inside or senses it at the surface.
Sucrose is perceived by membrane-localized transporters and receptors. In plants, sucrose transporters (SUT/SUC) mediate uptake, while in animals, sweet taste receptors (T1R2/T1R3) detect sucrose. This step initiates signaling cascades that lead to cellular changes.
Signal Transduction and Metabolic Sensing
In simple terms: Once detected, sucrose triggers a chain of signals inside the cell.
Sucrose metabolism generates hexoses that feed into signaling pathways involving hexokinase, SnRK1, and TOR. These sensors modulate downstream targets, including transcription factors and metabolic enzymes, to adjust cellular activity.
Gene Expression Reprogramming
In simple terms: The cell changes which genes are turned on or off in response to sucrose.
Sucrose stimulus leads to differential expression of genes involved in metabolism, transport, and stress responses. Transcription factors such as bZIP and MYB family members are activated, and chromatin remodeling may occur.
Translational and Post-Translational Control
In simple terms: The cell also fine-tunes protein production and activity after sucrose exposure.
Ribosome profiling studies have shown that sucrose rapidly alters translation efficiency of specific mRNAs, allowing swift adaptation. Post-translational modifications, such as phosphorylation, regulate enzyme activities in sucrose metabolism.
Cellular Outcomes and Feedback
In simple terms: The response leads to changes in cell behavior and may feed back to adjust sensitivity.
Cells may increase secretion, alter growth, or accumulate storage compounds. Feedback loops involving sugar metabolites and hormones ensure homeostasis. Dysregulation can lead to pathological states.
Key Genes Involved in GO:0071329 cellular response to sucrose stimulus
The following genes are central to the cellular response to sucrose stimulus, based on published literature.
| Gene | Major Role | Research Relevance |
|---|---|---|
| SUT1 | Sucrose transporter | Mediates sucrose uptake in plants; knockout affects growth |
| SUC2 | Sucrose transporter | Phloem loading; mutant shows altered sucrose response |
| INV1 | Cell wall invertase | Hydrolyzes sucrose to hexoses; regulates signaling |
| SPS1 | Sucrose phosphate synthase | Sucrose synthesis; overexpression increases yield |
| TPS1 | Trehalose-6-phosphate synthase | Sugar signaling; affects development |
| HXK1 | Hexokinase | Glucose sensor; mediates sucrose-derived signals |
| SnRK1 | Energy sensor kinase | Represses growth under low energy; interacts with sucrose signaling |
| TOR | Target of rapamycin kinase | Promotes growth in response to sucrose |
| bZIP11 | Transcription factor | Repressed by sucrose; regulates metabolism |
| MYB75 | Transcription factor | Regulates anthocyanin biosynthesis in response to sucrose |
| T1R2 | Sweet taste receptor | Detects sucrose in animals |
| T1R3 | Sweet taste receptor | Partner of T1R2; mediates sucrose perception |
| GLUT2 | Glucose transporter | Facilitates hexose uptake after sucrose digestion |
| KIN10 | SnRK1 catalytic subunit | Key energy sensor; mutant affects sucrose response |
| PIF4 | Transcription factor | Integrates sucrose and light signaling |
| WRKY20 | Transcription factor | Regulates sucrose metabolism genes |
How Is cellular response to sucrose stimulus Regulated?
The cellular response to sucrose stimulus is regulated by interconnected signaling networks. The energy sensor SnRK1 is inhibited by sucrose-derived metabolites, while TOR kinase is activated, promoting growth. Hexokinase-dependent signaling and trehalose-6-phosphate levels also modulate the response. Hormones such as auxin, cytokinin, and abscisic acid cross-talk with sucrose signaling to fine-tune cellular outcomes.
cellular response to sucrose stimulus and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| SUT1 | Plant growth defects | Knockout in Arabidopsis |
| HXK1 | Diabetes-like phenotypes | Knockout in mouse beta cells |
| T1R2 | Obesity and taste disorders | Knockout mouse |
| SnRK1 | Metabolic syndrome | Overexpression in cell lines |
| TOR | Cancer | Point mutation in cancer cell lines |
Metabolic Disorders
Altered cellular responses to sucrose contribute to insulin resistance, obesity, and type 2 diabetes. Hyperactivation of sweet taste receptors and dysregulated hexose transport affect glucose homeostasis.
Cancer
Cancer cells often reprogram sugar metabolism to support rapid growth. Sucrose and its metabolites can fuel anabolic pathways, and targeting sucrose-responsive genes may inhibit tumor progression.
Plant Developmental Defects
Mutations in sucrose transporter or signaling genes cause growth retardation, reduced seed set, and altered stress responses, impacting crop yield.
From cellular response to sucrose stimulus-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Does gene X mediate sucrose uptake? | Knockout cell line |
| Does mutation Y alter sucrose sensing? | Point mutation knock-in |
| How does tagged protein localize upon sucrose? | Tagged knock-in |
| Does overexpression of gene Z enhance response? | Overexpression stable line |
| Which genes are essential for sucrose response? | CRISPR library screen |
| What is the translational landscape? | Ribo-seq |
How to Study the cellular response to sucrose stimulus Process
| Method | What It Measures | Typical Application |
|---|---|---|
| Ribo-seq | Translation efficiency | Global translational response |
| RNA-seq | mRNA levels | Transcriptional changes |
| Proteomics | Protein abundance | Post-translational regulation |
| Metabolomics | Metabolite levels | Sucrose metabolism |
| CRISPR screen | Gene essentiality | Identify regulators |
| ChIP-seq | TF binding | Chromatin changes |
| Live imaging | Dynamic localization | Real-time signaling |
Ribosome Profiling
Ribosome profiling captures genome-wide translation changes in response to sucrose, revealing rapid translational control.
RNA Sequencing
RNA-seq measures transcriptional reprogramming after sucrose stimulus, identifying differentially expressed genes.
Proteomics
Mass spectrometry-based proteomics quantifies protein abundance and modifications in sucrose-treated cells.
Live-Cell Imaging
Fluorescent reporters and biosensors visualize sucrose transport and signaling dynamics in real time.
How CRISPR Can Be Used to Study GO:0071329 cellular response to sucrose stimulus
Knockout
CRISPR knockout of candidate genes (e.g., SUT1, HXK1) abolishes sucrose response, revealing essential roles. Pooled KO screens identify novel regulators.
Point Mutation
Point mutations mimic disease-associated variants or alter catalytic residues, allowing precise structure-function studies of sucrose-responsive proteins.
Knock-in
Knock-in of tagged or reporter alleles enables visualization and purification of endogenous proteins during sucrose response.
Overexpression
Overexpression of sucrose signaling genes (e.g., TPS1, SPS1) enhances or rewires the response, useful for gain-of-function studies.
How EDITGENE Supports cellular response to sucrose stimulus Research
Researchers studying cellular response to sucrose stimulus-related genes often need to determine whether a candidate gene is causally involved in the process. EDITGENE provides comprehensive CRISPR services to generate precisely engineered cell models, enabling rigorous functional validation.
Contact EDITGENE today to design your custom CRISPR model for cellular response to sucrose stimulus research.
Frequently Asked Questions About cellular response to sucrose stimulus
What is GO:0071329 cellular response to sucrose stimulus?
It is a Gene Ontology biological process term describing any cellular change triggered by sucrose, including gene expression, enzyme production, and secretion.
What genes are involved in cellular response to sucrose stimulus?
Key genes include SUT1, SUC2, INV1, SPS1, TPS1, HXK1, SnRK1, TOR, and transcription factors like bZIP11 and MYB75.
How is sucrose sensed by cells?
Sucrose is sensed by transporters, receptors, and metabolic sensors such as hexokinase and SnRK1, which initiate signaling cascades.
What diseases are linked to sucrose response?
Metabolic disorders like diabetes and obesity, as well as cancer, are associated with dysregulated sucrose response.
What methods study cellular response to sucrose?
Ribosome profiling, RNA-seq, proteomics, metabolomics, and CRISPR screens are commonly used.
Can CRISPR be used to study sucrose response genes?
Yes, CRISPR knockout, point mutation, knock-in, and overexpression models are powerful tools for functional studies.
What is the role of SnRK1 in sucrose response?
SnRK1 is an energy sensor that is inhibited by sucrose metabolites, thereby promoting growth when energy is available.
How does TOR signaling relate to sucrose?
TOR kinase is activated by sucrose to promote cell growth and proliferation.
What are the cellular outcomes of sucrose stimulus?
Outcomes include altered gene expression, enzyme activity, secretion, and growth, depending on cell type.
Why is sucrose response important in plants?
It regulates growth, development, and stress responses, impacting crop yield and quality.
Conclusion
GO:0071329 cellular response to sucrose stimulus is a fundamental biological process that integrates sugar sensing with cellular adaptation. Its study spans plants, animals, and microorganisms, with implications for metabolic diseases and agriculture. By leveraging CRISPR models and advanced profiling techniques, researchers can uncover the precise genes and mechanisms driving this response. EDITGENE offers the tools and expertise to accelerate such discoveries.
References
- 1. Sonia J et al.. 2024. Ribosome Profiling of Plants.. Methods Mol Biol 2724:139-163 PMID: 37987904