GO:0090176 microtubule cytoskeleton organization involved in establishment of planar polarity: Mechanism, Genes and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:0090176 describes how microtubule assembly, arrangement and disassembly contribute to planar polarity, the coordinated orientation of cells within a tissue.
• Core planar cell polarity (PCP) proteins such as Prickle2 and Dishevelled/Daam1 link polarity signaling to microtubule bundling and cytoskeletal organization.
• Kif26b, a kinesin motor, controls endothelial cell polarity through the Dishevelled/Daam1-dependent PCP pathway, directly connecting microtubule motors to planar polarity.
• Prickle2 regulates axon number and axon initial segment maturation by binding AnkG and modulating microtubule bundling, linking GO:0090176 to neuronal development.
• Grhl3 and GEF19 act in the front Rho signaling module, providing a regulatory entry point for planar polarity-associated cytoskeletal remodeling.
• Experimental dissection of GO:0090176 benefits from CRISPR knockout, point-mutation, knock-in and overexpression models combined with imaging and omics readouts.
Description
Planar polarity is the coordinated orientation of cells and cellular structures within the plane of a tissue, and it depends on the precise organization of the microtubule cytoskeleton. GO:0090176, microtubule cytoskeleton organization involved in establishment of planar polarity, captures the cellular processes that assemble, arrange or disassemble microtubules and their associated proteins specifically in service of planar polarity. This term sits at the intersection of cell polarity signaling and cytoskeletal dynamics, making it central to understanding how tissues acquire directional order. Researchers study GO:0090176 because defects in planar polarity and microtubule organization underlie diverse developmental and disease phenotypes, including vascular patterning abnormalities and neuronal wiring defects. The pathway is not a single linear cascade; rather, it integrates core PCP proteins, microtubule motors and bundling factors to produce directional cytoskeletal arrays. Understanding which genes execute each step is essential for mechanistic studies and for designing targeted perturbations. This article synthesizes authoritative QuickGO annotation for GO:0090176 with verified PubMed literature to describe the definition, molecular players, regulatory logic, disease relevance and experimental strategies. It is written for researchers who need a precise, citable overview that supports both hypothesis generation and experimental design.
microtubule cytoskeleton organization involved in establishment of planar polarity At A Glance
| GO ID | GO:0090176 |
|---|---|
| GO term | microtubule cytoskeleton organization involved in establishment of planar polarity |
| Ontology | biological_process |
| Synonym | microtubule cytoskeleton organisation involved in establishment of planar polarity |
| Definition | A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of cytoskeletal structures comprising microtubules and their associated proteins and contributes to the establishment of planar polarity. |
| Major function | Couples microtubule assembly, bundling and disassembly to planar polarity signaling |
| Related core PCP components | Dishevelled, Daam1, Prickle2, Kif26b |
| Associated cellular structures | Microtubule bundles, axon initial segment, endothelial cytoskeleton |
| Research relevance | Vascular patterning, neuronal development, tissue morphogenesis |
What Is GO:0090176?
GO:0090176 is a biological process term defined as a cellular process that results in the assembly, arrangement of constituent parts, or disassembly of cytoskeletal structures comprising microtubules and their associated proteins, and that contributes to the establishment of planar polarity. In other words, it is the microtubule-focused subset of planar polarity establishment: not all planar polarity events, but specifically those executed through microtubule organization.
Why Is microtubule cytoskeleton organization involved in establishment of planar polarity Important in Cell Biology?
GO:0090176 matters because it provides the mechanistic bridge between planar polarity signaling and the microtubule cytoskeleton, a bridge that determines how cells orient division, migration and differentiation within tissues. Disruption of this process has been linked to endothelial polarity defects and neuronal maturation abnormalities, making it relevant to vascular biology and neurodevelopment.
• Defines how microtubule organization is coupled to planar polarity establishment.
• Kif26b controls endothelial cell polarity through Dishevelled/Daam1-dependent PCP signaling.
• Prickle2 regulates axon number and axon initial segment maturation via microtubule bundling.
• Links core PCP proteins to microtubule motors and bundling factors.
• Provides a framework for studying tissue-level directional order.
• Relevant to vascular patterning and endothelial function.
• Relevant to neuronal wiring and axon development.
• Offers targets for CRISPR-based perturbation studies.
• Supports integration of imaging and omics readouts.
• Helps interpret planar polarity phenotypes in developmental models.
What Happens During microtubule cytoskeleton organization involved in establishment of planar polarity?
Initiation by core PCP signaling
In simple terms: The process starts when core planar polarity proteins tell the cell which way is which.
Core PCP signaling provides the directional cue that initiates microtubule reorganization for planar polarity. Kif26b controls endothelial cell polarity through the Dishevelled/Daam1-dependent planar cell polarity-signaling pathway, placing Dishevelled and Daam1 upstream of microtubule motor activity. This initiation step converts a polarity signal into a cytoskeletal instruction.
Microtubule motor engagement
In simple terms: Molecular motors move along microtubules to help organize them.
Kif26b, a kinesin-family motor, is a key effector linking PCP signaling to microtubule organization in endothelial cells. Its activity depends on the Dishevelled/Daam1 pathway, indicating that motor engagement is a regulated step rather than a constitutive process. This step translates polarity information into directed microtubule rearrangement.
Microtubule bundling and stabilization
In simple terms: Microtubules are grouped and stabilized into organized bundles.
Prickle2 binds AnkG and modulates microtubule bundling, directly influencing the structural organization of microtubules in neurons. This bundling activity is required for proper axon number and axon initial segment maturation, showing that bundling is functionally coupled to planar polarity-related outcomes. Bundling factors thus act as structural effectors of GO:0090176.
Cytoskeletal remodeling at the cell front
In simple terms: The front of the cell reorganizes its skeleton to support polarity.
Grhl3 and GEF19 act in the front Rho signaling module, which contributes to cytoskeletal remodeling associated with polarity. This front Rho module provides a regulatory input that can influence microtubule organization during planar polarity establishment. The coordination of Rho signaling with microtubule effectors is part of the broader organization process.
Cortical cytoskeletal organization
In simple terms: The cell cortex helps organize filament networks.
De novo formation of cytokeratin filament networks originates from the cell cortex in A-431 cells, illustrating how cortical sites can serve as nucleation or organization centers for cytoskeletal networks. Although this study concerns cytokeratin filaments, it supports the general principle that the cell cortex is a platform for cytoskeletal organization relevant to polarity processes.
Key Genes Involved in GO:0090176 microtubule cytoskeleton organization involved in establishment of planar polarity
The following genes and proteins have been experimentally linked to microtubule cytoskeleton organization involved in establishment of planar polarity or its associated signaling modules.
| Gene | Major Role | Research Relevance |
|---|---|---|
| Kif26b | Kinesin motor controlling endothelial cell polarity via Dishevelled/Daam1-dependent PCP signaling | Direct effector linking microtubule motors to planar polarity |
| Dvl (Dishevelled) | Core PCP signaling component upstream of Kif26b | Central node in PCP-to-microtubule signaling |
| Daam1 | Formin-family protein acting in Dishevelled-dependent PCP pathway | Connects PCP signaling to cytoskeletal effectors |
| Prickle2 | Binds AnkG and modulates microtubule bundling | Regulates axon number and AIS maturation |
| AnkG | Binding partner of Prickle2 at the axon initial segment | Structural anchor linking polarity proteins to microtubules |
| Grhl3 | Acts in the front Rho signaling module | Regulatory input for polarity-associated cytoskeletal remodeling |
| GEF19 | Acts in the front Rho signaling module | Rho pathway component influencing cytoskeletal organization |
| Rho | Small GTPase in front signaling module | Regulates cytoskeletal remodeling during polarity |
| Kinesin family motors | Microtubule-based motors organizing cytoskeletal arrays | Candidate effectors of GO:0090176 |
| Microtubule-associated proteins | Regulate microtubule bundling and stability | Structural effectors of planar polarity |
| Cytokeratin filaments | Cortical filament networks | Model for cortical cytoskeletal organization principles |
| Actin regulators | Cytoskeletal remodeling at cell front | Coordinate with microtubule organization |
| PCP core proteins | Provide directional cues for planar polarity | Upstream regulators of GO:0090176 |
| Formin-family proteins | Nucleate and elongate cytoskeletal filaments | Potential mediators of PCP-driven organization |
| Ankyrin family proteins | Scaffold polarity proteins to cytoskeleton | Link membrane domains to microtubule organization |
| Rho GEFs | Activate Rho GTPases | Regulatory entry points for cytoskeletal polarity |
| Microtubule bundling factors | Organize microtubules into bundles | Direct executors of GO:0090176 |
How Is microtubule cytoskeleton organization involved in establishment of planar polarity Regulated?
Regulation of GO:0090176 involves core PCP signaling through Dishevelled and Daam1, which controls Kif26b-dependent endothelial polarity. Prickle2 binding to AnkG modulates microtubule bundling, providing a regulatory interaction that tunes axon number and AIS maturation. The front Rho signaling module, including Grhl3 and GEF19, adds another regulatory layer that can influence cytoskeletal remodeling during polarity. Together, these inputs coordinate microtubule organization with planar polarity cues.
microtubule cytoskeleton organization involved in establishment of planar polarity and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| Kif26b | Endothelial polarity and vascular patterning | Endothelial KO and rescue models |
| Prickle2 | Axon number and AIS maturation defects | Neuronal KO and knock-in models |
| AnkG | Axon initial segment integrity | Tagged knock-in for localization studies |
| Grhl3 | Front Rho signaling and polarity | Epithelial KO and overexpression models |
| GEF19 | Rho-dependent cytoskeletal remodeling | Point-mutation and KO models |
Vascular and endothelial dysfunction
Kif26b controls endothelial cell polarity through the Dishevelled/Daam1-dependent PCP pathway, and disruption of this axis is expected to impair endothelial polarity and vascular patterning. Because GO:0090176 encompasses microtubule organization for planar polarity, defects in its effectors may contribute to vascular abnormalities.
Neurodevelopmental and axon pathology
Prickle2 regulates axon number and axon initial segment maturation by binding AnkG and modulating microtubule bundling. Perturbation of this mechanism can alter neuronal wiring and AIS integrity, linking GO:0090176 to neurodevelopmental phenotypes.
Tissue morphogenesis and polarity disorders
Core PCP signaling and front Rho module components such as Grhl3 and GEF19 influence cytoskeletal remodeling during polarity. When microtubule organization for planar polarity is compromised, tissue-level morphogenesis can be affected.
From microtubule cytoskeleton organization involved in establishment of planar polarity-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Is Kif26b required for endothelial planar polarity? | Kif26b knockout endothelial cells |
| Does Dishevelled/Daam1 signaling mediate Kif26b function? | Knockout or knockdown of Dvl/Daam1 with rescue |
| How does Prickle2 bundling affect axon number? | Prickle2 knockout neurons |
| Does Prickle2-AnkG binding regulate AIS maturation? | Point-mutation knock-in disrupting binding |
| Where does Prickle2 localize relative to microtubules? | Tagged knock-in with imaging |
| Does Grhl3/GEF19 modulate front Rho signaling? | Overexpression and knockout epithelial models |
How to Study the microtubule cytoskeleton organization involved in establishment of planar polarity Process
| Method | What It Measures | Typical Application |
|---|---|---|
| Live-cell fluorescence imaging | Microtubule bundling and dynamics | Visualizing Prickle2-dependent organization |
| CRISPR knockout | Loss-of-function phenotypes | Testing Kif26b and Prickle2 requirements |
| Co-immunoprecipitation | Protein-protein interactions | Validating Prickle2-AnkG binding |
| RNA-seq | Transcriptional changes after perturbation | Identifying downstream polarity programs |
| Proteomics | Protein abundance and modifications | Mapping cytoskeletal effectors |
| Immunofluorescence | Protein localization in tissues | Assessing AIS and microtubule organization |
| Rescue experiments | Causal role of specific domains | Testing point-mutant constructs |
| Time-lapse microscopy | Dynamic cytoskeletal remodeling | Studying cortical filament organization |
Live-cell imaging of microtubule organization
Live-cell imaging of fluorescently tagged microtubule and polarity proteins allows direct observation of microtubule bundling and organization during planar polarity establishment. This approach is essential for linking Prickle2 and AnkG localization to microtubule dynamics.
Perturbation by CRISPR knockout and knockdown
CRISPR knockout of Kif26b, Prickle2 or pathway components enables loss-of-function analysis of GO:0090176. Combining knockout with rescue constructs helps establish causality for specific effectors.
Biochemical interaction mapping
Binding assays can test interactions such as Prickle2-AnkG and Dishevelled-Daam1-Kif26b, which are central to the mechanism. These assays define the molecular wiring of the pathway.
Transcriptomic and proteomic profiling
RNA-seq and proteomics can identify downstream changes in cytoskeletal and polarity gene programs after perturbation of GO:0090176 components. Such profiling helps place the term within broader cellular networks.
How CRISPR Can Be Used to Study GO:0090176 microtubule cytoskeleton organization involved in establishment of planar polarity
Knockout
CRISPR knockout of Kif26b or Prickle2 can test their requirement for microtubule organization during planar polarity. Loss-of-function models reveal whether the gene is essential for endothelial polarity or axon maturation.
Point Mutation
Point mutations can disrupt specific binding interfaces, such as Prickle2-AnkG, to separate bundling functions from other activities. This approach refines structure-function understanding of GO:0090176 effectors.
Knock-in
Tagged knock-in of Prickle2 or Kif26b enables precise localization and interaction studies in native contexts. Knock-in reporters help track microtubule-associated proteins during polarity establishment.
Overexpression
Overexpression of Grhl3, GEF19 or pathway components can amplify front Rho signaling and cytoskeletal remodeling. Overexpression models are useful for gain-of-function analysis of polarity-associated microtubule organization.
How EDITGENE Supports microtubule cytoskeleton organization involved in establishment of planar polarity Research
Researchers studying microtubule cytoskeleton organization involved in establishment of planar polarity-related genes often need to determine whether a candidate gene is causally involved in microtubule organization, polarity signaling or both. EDITGENE provides CRISPR-based cell models and screening services that allow precise perturbation of Kif26b, Prickle2, Dishevelled, Daam1 and related pathway components.
Contact EDITGENE today to design your custom CRISPR model for microtubule cytoskeleton organization involved in establishment of planar polarity research.
Frequently Asked Questions About microtubule cytoskeleton organization involved in establishment of planar polarity
What is GO:0090176?
GO:0090176 is the biological process of microtubule cytoskeleton organization that contributes to the establishment of planar polarity, as defined by QuickGO.
What genes are involved in microtubule cytoskeleton organization involved in establishment of planar polarity?
Key genes include Kif26b, Dishevelled, Daam1, Prickle2, AnkG, Grhl3 and GEF19, based on published studies.
How does Kif26b control planar polarity?
Kif26b controls endothelial cell polarity through the Dishevelled/Daam1-dependent planar cell polarity signaling pathway.
What is the role of Prickle2 in microtubule organization?
Prickle2 binds AnkG and modulates microtubule bundling, regulating axon number and axon initial segment maturation.
Why is planar polarity important for tissues?
Planar polarity coordinates cell orientation within tissues, and its disruption can affect vascular patterning and neuronal development.
What experimental models study GO:0090176?
CRISPR knockout, point-mutation, knock-in and overexpression models combined with imaging and omics are commonly used.
Is GO:0090176 a cellular component or biological process?
GO:0090176 is a biological_process term in the Gene Ontology.
How is the front Rho module linked to planar polarity?
Grhl3 and GEF19 act in the front Rho signaling module, which contributes to cytoskeletal remodeling during polarity.
Can CRISPR screens identify new regulators of planar polarity?
Yes, CRISPR library screening with polarity and microtubule readouts can uncover novel regulators of GO:0090176.
What diseases relate to microtubule cytoskeleton organization in planar polarity?
Disruption of this process has been linked to endothelial polarity defects and neuronal axon maturation abnormalities.
Conclusion
GO:0090176 captures the microtubule-focused arm of planar polarity establishment, integrating core PCP signaling, microtubule motors and bundling factors. Key effectors such as Kif26b, Prickle2 and AnkG provide experimentally tractable entry points for mechanistic and disease-relevant studies. By combining CRISPR-based perturbation with imaging and omics readouts, researchers can dissect how individual genes contribute to microtubule organization during planar polarity. EDITGENE supports these efforts with tailored cell models and screening services.
References
- 1. Guillabert-Gourgues A et al.. 2016. Kif26b controls endothelial cell polarity through the Dishevelled/Daam1-dependent planar cell polarity-signaling pathway.. Mol Biol Cell 27(6):941-53 PMID: 26792835
- 2. Darido C et al.. 2010. Grhl3 and GEF19 in the front rho.. Small GTPases 1(2):104-107 PMID: 21686262
- 3. Dorrego-Rivas A et al.. 2022. The core PCP protein Prickle2 regulates axon number and AIS maturation by binding to AnkG and modulating microtubule bundling.. Sci Adv 8(36):eabo6333 PMID: 36083912
- 4. Windoffer R et al.. 2001. De novo formation of cytokeratin filament networks originates from the cell cortex in A-431 cells.. Cell Motil Cytoskeleton 50(1):33-44 PMID: 11746670
