Source 1primary paper2025MED
Toolkit/single-construct optogenetic talin
single-construct optogenetic talin
Also known as: single-construct optodimerizable talin
Taxonomy: Mechanism Branch / Architecture. Workflows sit above the mechanism and technique branches rather than replacing them.
Summary
Single-construct optogenetic talin is an engineered light-responsive talin system in which pdDronpa1.2 enables light-inducible C-terminal talin homodimerization. In the cited study, this induced talin recruitment to adhesion sites, promoted adhesion formation, engaged actin retrograde flow, and activated downstream mechanosignaling.
Usefulness & Problems
Why this is useful
This tool provides optical control over talin-dependent localization and mechanotransduction within a single genetic construct. It is specifically presented as a way to avoid stoichiometric balance and multiplexing limitations associated with prior dual-construct heterodimerization systems, while remaining compatible with quantitative actin dynamics imaging and super-resolution single-molecule tracking.
Source:
The paper develops a single-construct optogenetic talin that uses pdDronpa1.2 for light-inducible C-terminal homodimerization.
Problem solved
The tool addresses the difficulty of controlling talin-mediated adhesion assembly and mechanosignaling with optogenetic systems that require two separately expressed components. By consolidating the light-responsive function into a single construct, it is intended to reduce stoichiometric imbalance and facilitate multiplexed imaging experiments.
Source:
The paper develops a single-construct optogenetic talin that uses pdDronpa1.2 for light-inducible C-terminal homodimerization.
Published Workflows
Objective: Develop and apply a single-construct optogenetic talin to control mechanotransduction through light-inducible C-terminal homodimerization while avoiding limitations of dual-construct systems.
Why it works: The abstract states that artificial light-induced homodimerization is sufficient to promote talin recruitment to adhesion sites, adhesion formation, actin retrograde flow engagement, and downstream mechanosignaling, supporting the strategy of controlling mechanotransduction by optically inducing talin dimerization.
light-induced talin C-terminal homodimerizationtalin-mediated adhesion mechanosensingactin binding and force-transmission couplingoptogenetic manipulationquantitative actin dynamics imagingsuper-resolution single-molecule tracking
Taxonomy & Function
Primary hierarchy
Mechanism Branch
Architecture: A composed arrangement of multiple parts that instantiates one or more mechanisms.
Mechanisms
Heterodimerizationlight-induced homodimerizationmechanosignaling activationoptogenetic control of protein localizationTechniques
No technique tags yet.
Target processes
localizationsignalingInput: Light
Implementation Constraints
The construct uses pdDronpa1.2 and is designed as a single-construct optodimerizable talin in which light induces C-terminal talin homodimerization. The supplied evidence supports use in imaging-compatible experiments, but it does not provide detailed construct architecture, expression conditions, or illumination wavelengths.
The available evidence is limited to a single cited study, so independent replication is not established. The provided evidence does not specify illumination parameters, cell types, dynamic range, reversibility, or performance relative to alternative optogenetic talin designs.
Validation
Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication
Supporting Sources
Ranked Claims
The single-construct optogenetic talin is intended to overcome stoichiometric balance and multiplexing limitations of prior dual-construct heterodimerization approaches.
The single-construct optogenetic talin is intended to overcome stoichiometric balance and multiplexing limitations of prior dual-construct heterodimerization approaches.
The single-construct optogenetic talin is intended to overcome stoichiometric balance and multiplexing limitations of prior dual-construct heterodimerization approaches.
The single-construct optogenetic talin is intended to overcome stoichiometric balance and multiplexing limitations of prior dual-construct heterodimerization approaches.
The single-construct optogenetic talin is intended to overcome stoichiometric balance and multiplexing limitations of prior dual-construct heterodimerization approaches.
The single-construct optogenetic talin is intended to overcome stoichiometric balance and multiplexing limitations of prior dual-construct heterodimerization approaches.
The single-construct optogenetic talin is intended to overcome stoichiometric balance and multiplexing limitations of prior dual-construct heterodimerization approaches.
The single-construct optogenetic talin is intended to overcome stoichiometric balance and multiplexing limitations of prior dual-construct heterodimerization approaches.
The single-construct optodimerizable talin can be multiplexed with quantitative actin dynamics imaging or super-resolution single-molecule tracking.
The single-construct optodimerizable talin can be multiplexed with quantitative actin dynamics imaging or super-resolution single-molecule tracking.
The single-construct optodimerizable talin can be multiplexed with quantitative actin dynamics imaging or super-resolution single-molecule tracking.
The single-construct optodimerizable talin can be multiplexed with quantitative actin dynamics imaging or super-resolution single-molecule tracking.
The single-construct optodimerizable talin can be multiplexed with quantitative actin dynamics imaging or super-resolution single-molecule tracking.
The single-construct optodimerizable talin can be multiplexed with quantitative actin dynamics imaging or super-resolution single-molecule tracking.
The single-construct optodimerizable talin can be multiplexed with quantitative actin dynamics imaging or super-resolution single-molecule tracking.
The single-construct optodimerizable talin can be multiplexed with quantitative actin dynamics imaging or super-resolution single-molecule tracking.
Artificial light-induced homodimerization of talin is sufficient to promote talin recruitment to adhesion sites, adhesion formation, actin retrograde flow engagement, and downstream mechanosignaling.
Artificial light-induced homodimerization of talin is sufficient to promote talin recruitment to adhesion sites, adhesion formation, actin retrograde flow engagement, and downstream mechanosignaling.
Artificial light-induced homodimerization of talin is sufficient to promote talin recruitment to adhesion sites, adhesion formation, actin retrograde flow engagement, and downstream mechanosignaling.
Artificial light-induced homodimerization of talin is sufficient to promote talin recruitment to adhesion sites, adhesion formation, actin retrograde flow engagement, and downstream mechanosignaling.
Artificial light-induced homodimerization of talin is sufficient to promote talin recruitment to adhesion sites, adhesion formation, actin retrograde flow engagement, and downstream mechanosignaling.
Artificial light-induced homodimerization of talin is sufficient to promote talin recruitment to adhesion sites, adhesion formation, actin retrograde flow engagement, and downstream mechanosignaling.
Artificial light-induced homodimerization of talin is sufficient to promote talin recruitment to adhesion sites, adhesion formation, actin retrograde flow engagement, and downstream mechanosignaling.
Artificial light-induced homodimerization of talin is sufficient to promote talin recruitment to adhesion sites, adhesion formation, actin retrograde flow engagement, and downstream mechanosignaling.
The paper develops a single-construct optogenetic talin that uses pdDronpa1.2 for light-inducible C-terminal homodimerization.
The paper develops a single-construct optogenetic talin that uses pdDronpa1.2 for light-inducible C-terminal homodimerization.
The paper develops a single-construct optogenetic talin that uses pdDronpa1.2 for light-inducible C-terminal homodimerization.
The paper develops a single-construct optogenetic talin that uses pdDronpa1.2 for light-inducible C-terminal homodimerization.
The paper develops a single-construct optogenetic talin that uses pdDronpa1.2 for light-inducible C-terminal homodimerization.
The paper develops a single-construct optogenetic talin that uses pdDronpa1.2 for light-inducible C-terminal homodimerization.
The paper develops a single-construct optogenetic talin that uses pdDronpa1.2 for light-inducible C-terminal homodimerization.
The paper develops a single-construct optogenetic talin that uses pdDronpa1.2 for light-inducible C-terminal homodimerization.
Approval Evidence
1 source4 linked approval claimsfirst-pass slug single-construct-optogenetic-talin
we develop a single-construct optogenetic talin utilizing pdDronpa1.2 for light-inducible C-terminal homodimerization
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comparative advantagesupports
The single-construct optogenetic talin is intended to overcome stoichiometric balance and multiplexing limitations of prior dual-construct heterodimerization approaches.
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compatibilitysupports
The single-construct optodimerizable talin can be multiplexed with quantitative actin dynamics imaging or super-resolution single-molecule tracking.
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mechanistic effectsupports
Artificial light-induced homodimerization of talin is sufficient to promote talin recruitment to adhesion sites, adhesion formation, actin retrograde flow engagement, and downstream mechanosignaling.
Source:
tool developmentsupports
The paper develops a single-construct optogenetic talin that uses pdDronpa1.2 for light-inducible C-terminal homodimerization.
Source:
Comparisons
Source-backed strengths
The cited study reports that light-induced talin homodimerization was sufficient to drive several downstream outputs: recruitment to adhesion sites, adhesion formation, coupling to actin retrograde flow, and mechanosignaling activation. A further practical strength is compatibility with quantitative actin dynamics imaging and super-resolution single-molecule tracking.
Source:
The single-construct optogenetic talin is intended to overcome stoichiometric balance and multiplexing limitations of prior dual-construct heterodimerization approaches.
Ranked Citations
- 1.