Source 1primary paper2023Journal of Visualized Experiments
Toolkit/light-oxygen-voltage sensing (LOV) domain
light-oxygen-voltage sensing (LOV) domain
Also known as: LOV domain
Taxonomy: Mechanism Branch / Component. Workflows sit above the mechanism and technique branches rather than replacing them.
Summary
The light-oxygen-voltage sensing (LOV) domain is a blue light-responsive protein domain used in optogenetic constructs to confer light-dependent control over coupled signaling effectors. The supplied evidence specifically describes it as a blue light homodimerizing LOV domain.
Usefulness & Problems
Why this is useful
This domain is useful for building molecular optogenetic tools that enable reversible, tunable manipulation of signaling pathway activity with high spatiotemporal control. The evidence supports its use as a light-responsive module for experimental regulation of signaling.
Source:
Molecular optogenetic tools can provide reversible, tunable manipulations of signaling pathway activity with a high degree of spatiotemporal control
Problem solved
The LOV domain helps solve the problem of controlling signaling effectors with precise light input rather than constitutive or poorly timed activation. In the supplied evidence, it is used to confer light-dependent experimental control over signaling.
Problem links
Need conditional control of signaling activity
DerivedThe light-oxygen-voltage sensing (LOV) domain is a blue light-responsive protein domain used in optogenetic constructs to confer light-dependent control over signaling effectors. The supplied evidence specifically describes it as a blue light homodimerizing LOV domain.
Need precise spatiotemporal control with light input
DerivedThe light-oxygen-voltage sensing (LOV) domain is a blue light-responsive protein domain used in optogenetic constructs to confer light-dependent control over signaling effectors. The supplied evidence specifically describes it as a blue light homodimerizing LOV domain.
Taxonomy & Function
Primary hierarchy
Mechanism Branch
Component: A low-level protein part used inside a larger architecture that realizes a mechanism.
Mechanisms
Heterodimerizationhomodimerizationhomodimerizationlight-dependent protein interactionlight-dependent protein interactionTechniques
No technique tags yet.
Target processes
signalingInput: Light
Implementation Constraints
cofactor dependency: cofactor requirement unknownencoding mode: genetically encodedimplementation constraint: context specific validationimplementation constraint: multi component delivery burdenimplementation constraint: spectral hardware requirementoperating role: regulatorswitch architecture: multi componentswitch architecture: recruitment
The evidence indicates that the LOV domain is implemented by coupling it to signaling effectors, consistent with domain fusion-based construct design. No additional details are provided here on cofactors, expression systems, delivery methods, or linker architecture.
The supplied evidence does not provide quantitative performance data, kinetic parameters, dynamic range, or comparisons with other optogenetic domains. It also does not document independent replication, organismal breadth beyond the cited zebrafish context, or implementation constraints for specific LOV variants.
Validation
Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication
Supporting Sources
Ranked Claims
Molecular optogenetic tools can provide reversible, tunable manipulations of signaling pathway activity with a high degree of spatiotemporal control.
Molecular optogenetic tools can provide reversible, tunable manipulations of signaling pathway activity with a high degree of spatiotemporal control
Light-responsive protein domains such as the blue light homodimerizing LOV domain can be coupled with signaling effectors to confer light-dependent experimental control over signaling.
These tools couple light-responsive protein domains, such as the blue light homodimerizing light-oxygen-voltage sensing (LOV) domain, with signaling effectors to confer light-dependent experimental control over signaling.
Approval Evidence
1 source2 linked approval claimsfirst-pass slug light-oxygen-voltage-sensing-lov-domain
the blue light homodimerizing light-oxygen-voltage sensing (LOV) domain
Source:
capabilitysupports
Molecular optogenetic tools can provide reversible, tunable manipulations of signaling pathway activity with a high degree of spatiotemporal control.
Molecular optogenetic tools can provide reversible, tunable manipulations of signaling pathway activity with a high degree of spatiotemporal control
Source:
mechanismsupports
Light-responsive protein domains such as the blue light homodimerizing LOV domain can be coupled with signaling effectors to confer light-dependent experimental control over signaling.
These tools couple light-responsive protein domains, such as the blue light homodimerizing light-oxygen-voltage sensing (LOV) domain, with signaling effectors to confer light-dependent experimental control over signaling.
Source:
Comparisons
Source-backed strengths
The cited literature attributes to molecular optogenetic tools reversible and tunable control with high spatiotemporal precision. For the LOV domain specifically, the evidence supports blue light-triggered homodimerization and coupling to signaling effectors.
Compared with EL346
light-oxygen-voltage sensing (LOV) domain and EL346 address a similar problem space because they share signaling.
Shared frame: same top-level item type; shared target processes: signaling; shared mechanisms: heterodimerization; same primary input modality: light
Compared with Light-Oxygen-Voltage (LOV) domain
light-oxygen-voltage sensing (LOV) domain and Light-Oxygen-Voltage (LOV) domain address a similar problem space because they share signaling.
Shared frame: same top-level item type; shared target processes: signaling; shared mechanisms: heterodimerization; same primary input modality: light
Relative tradeoffs: appears more independently replicated; looks easier to implement in practice.
Compared with optogenetic RGS2
light-oxygen-voltage sensing (LOV) domain and optogenetic RGS2 address a similar problem space because they share signaling.
Shared frame: same top-level item type; shared target processes: signaling; shared mechanisms: heterodimerization; same primary input modality: light
Ranked Citations
- 1.