Source 1primary paper2025MED
Toolkit/pdDronpa1.2
pdDronpa1.2
Taxonomy: Mechanism Branch / Component. Workflows sit above the mechanism and technique branches rather than replacing them.
Summary
pdDronpa1.2 is a protein domain used in a single-construct optogenetic talin system to enable light-inducible C-terminal homodimerization. In the cited 2025 study, this light-triggered talin dimerization was sufficient to drive talin recruitment to adhesion sites, adhesion formation, coupling to actin retrograde flow, and downstream mechanosignaling.
Usefulness & Problems
Why this is useful
This domain is useful as the optodimerization module in a single-construct mechanotransduction actuator, allowing optical control of talin-dependent adhesion assembly and signaling. The cited study states that this design is intended to overcome stoichiometric balance and multiplexing limitations associated with prior dual-construct heterodimerization systems.
Source:
The paper develops a single-construct optogenetic talin that uses pdDronpa1.2 for light-inducible C-terminal homodimerization.
Problem solved
pdDronpa1.2 helps solve the problem of inducing talin dimerization with light in a single genetic construct rather than relying on dual-component heterodimerization strategies. This addresses the specific engineering challenge of controlling talin-mediated adhesion and mechanosignaling while reducing stoichiometric balancing constraints and preserving compatibility with imaging-based assays.
Source:
The paper develops a single-construct optogenetic talin that uses pdDronpa1.2 for light-inducible C-terminal homodimerization.
Problem links
Need precise spatiotemporal control with light input
DerivedpdDronpa1.2 is used as a protein domain in a single-construct optogenetic talin system that enables light-inducible C-terminal homodimerization. In the cited study, this light-triggered talin dimerization was sufficient to drive talin recruitment to adhesion sites, adhesion formation, engagement with actin retrograde flow, and downstream mechanosignaling.
Taxonomy & Function
Primary hierarchy
Mechanism Branch
Component: A low-level protein part used inside a larger architecture that realizes a mechanism.
Techniques
No technique tags yet.
Target processes
No target processes tagged yet.
Input: Light
Implementation Constraints
cofactor dependency: cofactor requirement unknowndimerization mode: homodimerizationencoding mode: genetically encodedimplementation constraint: context specific validationimplementation constraint: multi component delivery burdenimplementation constraint: spectral hardware requirementoperating role: actuatoroptogenetic component: Trueswitch architecture: multi componentswitch architecture: recruitment
The available evidence supports use of pdDronpa1.2 as a fused protein domain in a single-construct optogenetic talin design, specifically enabling C-terminal homodimerization. The supplied material does not provide construct architecture details beyond this, nor does it specify cofactors, expression systems, delivery methods, or illumination settings.
The provided evidence is limited to a single 2025 study and does not report independent replication. The supplied material does not specify photophysical parameters, illumination wavelengths, kinetics, reversibility, dynamic range, or performance of pdDronpa1.2 outside the talin fusion context.
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 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.
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.
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.
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.
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 source1 linked approval claimfirst-pass slug pddronpa1-2
single-construct optogenetic talin utilizing pdDronpa1.2 for light-inducible C-terminal homodimerization
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
Within the reported optogenetic talin construct, light-induced dimerization was sufficient to trigger multiple downstream cellular outputs: talin recruitment to adhesion sites, adhesion formation, engagement with actin retrograde flow, and mechanosignaling. The system was also reported to be compatible with multiplexing alongside 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.
Compared with light-oxygen-voltage sensing (LOV) domain
pdDronpa1.2 and light-oxygen-voltage sensing (LOV) domain address a similar problem space.
Shared frame: same top-level item type; shared mechanisms: heterodimerization; same primary input modality: light
Compared with optogenetic RGS2
pdDronpa1.2 and optogenetic RGS2 address a similar problem space.
Shared frame: same top-level item type; shared mechanisms: heterodimerization; same primary input modality: light
Compared with split-TurboID
pdDronpa1.2 and split-TurboID address a similar problem space.
Shared frame: same top-level item type; shared mechanisms: heterodimerization; same primary input modality: light
Relative tradeoffs: appears more independently replicated; looks easier to implement in practice.
Ranked Citations
- 1.