Source 1review2021Journal of Biological Chemistry
Toolkit/LOV1
LOV1
Taxonomy: Mechanism Branch / Component. Workflows sit above the mechanism and technique branches rather than replacing them.
Summary
LOV1 is a blue-light-sensing Light-Oxygen-Voltage photosensor domain from Chlamydomonas reinhardtii that occurs in phototropin receptors. In phototropins, LOV1 is paired with LOV2 and a C-terminal serine/threonine kinase domain within a multidomain light-regulated signaling protein.
Usefulness & Problems
Why this is useful
LOV1 is useful as a naturally occurring blue-light sensory module within phototropins, a receptor class that has inspired diverse optogenetic tools. The available evidence supports its relevance to light-regulated signaling architectures, but does not directly document LOV1-specific engineering performance.
Source:
The phototropins (phots) are light-activated kinases that are critical for plant physiology and the many diverse optogenetic tools that they have inspired.
Problem solved
LOV1 contributes to the broader problem of coupling blue-light input to intracellular signaling in phototropin proteins. The supplied evidence does not define a LOV1-specific standalone application beyond its role in this photoreceptor architecture.
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
signalingInput: Light
Implementation Constraints
LOV1 is found in phototropins together with LOV2 and a C-terminal serine/threonine kinase domain, so its native context is a multidomain receptor. The evidence does not specify construct design rules, cofactors, expression systems, or delivery considerations for isolated LOV1 use.
The supplied evidence does not provide LOV1-specific mechanistic detail, kinetic parameters, spectral properties, or direct optogenetic benchmarking. High-resolution structural information for phototropins remains challenging to obtain, which limits precise structure-guided engineering.
Validation
Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication
Supporting Sources
Source 2primary paper2011Journal of Chemical Biology
Ranked Claims
Phototropins contain two blue-light-sensing LOV domains, LOV1 and LOV2, together with a C-terminal serine/threonine kinase domain.
Phototropins combine two blue-light-sensing Light-Oxygen-Voltage (LOV) domains (LOV1 and LOV2) and a C-terminal serine/threonine kinase domain, using the LOV domains to control the catalytic activity of the kinase.
Phototropins are light-activated kinases important for plant physiology and have inspired diverse optogenetic tools.
The phototropins (phots) are light-activated kinases that are critical for plant physiology and the many diverse optogenetic tools that they have inspired.
High-resolution structural information on phototropins remains challenging to obtain and is presented as important for both fundamental understanding and engineering efforts.
the challenges that will have to be overcome to obtain high-resolution structural information on these exciting photoreceptors. Such information will be essential to advancing fundamental understanding of plant physiology while enabling engineering efforts at both the whole plant and molecular levels.
Activation of the LOV2 domain triggers unfolding of alpha helices that communicate the light signal to the kinase domain.
activation of the LOV2 domain triggers the unfolding of alpha helices that communicate the light signal to the kinase domain
Recent SAXS and other biophysical studies of multidomain phototropins from Chlamydomonas and Arabidopsis support models with an extended linear domain arrangement in which the regulatory LOV2 domain contacts the kinase domain N-lobe.
Recent studies have made progress addressing these questions by utilizing small-angle X-ray scattering (SAXS) and other biophysical approaches to study multidomain phots from Chlamydomonas and Arabidopsis, leading to models where the domains have an extended linear arrangement, with the regulatory LOV2 domain contacting the kinase domain N-lobe.
Recent SAXS and other biophysical studies of multidomain phototropins from Chlamydomonas and Arabidopsis support models with an extended linear domain arrangement in which the regulatory LOV2 domain contacts the kinase domain N-lobe.
Recent studies have made progress addressing these questions by utilizing small-angle X-ray scattering (SAXS) and other biophysical approaches to study multidomain phots from Chlamydomonas and Arabidopsis, leading to models where the domains have an extended linear arrangement, with the regulatory LOV2 domain contacting the kinase domain N-lobe.
Recent SAXS and other biophysical studies of multidomain phototropins from Chlamydomonas and Arabidopsis support models with an extended linear domain arrangement in which the regulatory LOV2 domain contacts the kinase domain N-lobe.
Recent studies have made progress addressing these questions by utilizing small-angle X-ray scattering (SAXS) and other biophysical approaches to study multidomain phots from Chlamydomonas and Arabidopsis, leading to models where the domains have an extended linear arrangement, with the regulatory LOV2 domain contacting the kinase domain N-lobe.
Recent SAXS and other biophysical studies of multidomain phototropins from Chlamydomonas and Arabidopsis support models with an extended linear domain arrangement in which the regulatory LOV2 domain contacts the kinase domain N-lobe.
Recent studies have made progress addressing these questions by utilizing small-angle X-ray scattering (SAXS) and other biophysical approaches to study multidomain phots from Chlamydomonas and Arabidopsis, leading to models where the domains have an extended linear arrangement, with the regulatory LOV2 domain contacting the kinase domain N-lobe.
Recent SAXS and other biophysical studies of multidomain phototropins from Chlamydomonas and Arabidopsis support models with an extended linear domain arrangement in which the regulatory LOV2 domain contacts the kinase domain N-lobe.
Recent studies have made progress addressing these questions by utilizing small-angle X-ray scattering (SAXS) and other biophysical approaches to study multidomain phots from Chlamydomonas and Arabidopsis, leading to models where the domains have an extended linear arrangement, with the regulatory LOV2 domain contacting the kinase domain N-lobe.
Recent SAXS and other biophysical studies of multidomain phototropins from Chlamydomonas and Arabidopsis support models with an extended linear domain arrangement in which the regulatory LOV2 domain contacts the kinase domain N-lobe.
Recent studies have made progress addressing these questions by utilizing small-angle X-ray scattering (SAXS) and other biophysical approaches to study multidomain phots from Chlamydomonas and Arabidopsis, leading to models where the domains have an extended linear arrangement, with the regulatory LOV2 domain contacting the kinase domain N-lobe.
Recent SAXS and other biophysical studies of multidomain phototropins from Chlamydomonas and Arabidopsis support models with an extended linear domain arrangement in which the regulatory LOV2 domain contacts the kinase domain N-lobe.
Recent studies have made progress addressing these questions by utilizing small-angle X-ray scattering (SAXS) and other biophysical approaches to study multidomain phots from Chlamydomonas and Arabidopsis, leading to models where the domains have an extended linear arrangement, with the regulatory LOV2 domain contacting the kinase domain N-lobe.
The paper studies the effect of computational methodology on the conformational dynamics of the protein photosensor LOV1 from Chlamydomonas reinhardtii.
Approval Evidence
2 sources2 linked approval claimsfirst-pass slug lov1
Phototropins combine two blue-light-sensing Light-Oxygen-Voltage (LOV) domains (LOV1 and LOV2) and a C-terminal serine/threonine kinase domain.
Source:
protein photosensor LOV1 from Chlamydomonas reinhardtii
Source:
domain architecturesupports
Phototropins contain two blue-light-sensing LOV domains, LOV1 and LOV2, together with a C-terminal serine/threonine kinase domain.
Phototropins combine two blue-light-sensing Light-Oxygen-Voltage (LOV) domains (LOV1 and LOV2) and a C-terminal serine/threonine kinase domain, using the LOV domains to control the catalytic activity of the kinase.
Source:
study focusneutral
The paper studies the effect of computational methodology on the conformational dynamics of the protein photosensor LOV1 from Chlamydomonas reinhardtii.
Source:
Comparisons
Source-backed strengths
LOV1 is part of a validated natural blue-light receptor system found in phototropins from Chlamydomonas reinhardtii. Phototropins are established light-activated kinases important for plant physiology, supporting the biological relevance of the LOV1-containing architecture.
Ranked Citations
- 1.