Source 1primary paper2018Comprehensive series in photochemistry and photobiology/Comprehensive series in photochemical & photobiological sciences
Toolkit/Method for efficient synthesis of phycocyanobilin in cultured mammalian cells
Method for efficient synthesis of phycocyanobilin in cultured mammalian cells
Taxonomy: Technique Branch / Method. Workflows sit above the mechanism and technique branches rather than replacing them.
Summary
This engineering method enables efficient intracellular synthesis of phycocyanobilin (PCB), the chromophore required by phytochrome B (PhyB), in cultured mammalian cells. By supplying PCB within mammalian cells, it permits a PhyB-based genetically encoded light-inducible dimerization system to be used for optical control of signal transduction with red and infrared light.
Usefulness & Problems
Why this is useful
The method is useful because it addresses chromophore availability for PhyB in mammalian cell culture, enabling a fully genetically encoded PhyB–PIF light-inducible dimerization system. The associated optogenetic system supports manipulation of signal transduction with longer-wavelength light, specifically red and infrared light.
Source:
This method enables efficient synthesis of phycocyanobilin, the chromophore of PhyB, in cultured mammalian cells. The abstract presents it as an enabling method for the genetically encoded PhyB LID system.
Source:
supplying phycocyanobilin in cultured mammalian cells
Source:
enabling genetically encoded PhyB-based light-inducible dimerization
Problem solved
This method solves the need to provide the PhyB chromophore phycocyanobilin inside cultured mammalian cells. That capability enables deployment of a genetically encoded PhyB-based light-induced dimerization system for controlling signal transduction.
Source:
It solves the need to provide the PhyB chromophore inside mammalian cells so that a PhyB-based LID system can be genetically encoded. This in turn supports red- and infrared-light control of signal transduction.
Source:
permits the LID system to be made with PhyB genetically encoded
Taxonomy & Function
Primary hierarchy
Technique Branch
Method: A concrete method used to build, optimize, or evolve an engineered system.
Mechanisms
HeterodimerizationTechniques
No technique tags yet.
Target processes
No target processes tagged yet.
Input: Light
Implementation Constraints
The method is implemented in cultured mammalian cells and is intended to generate intracellular phycocyanobilin for PhyB. The supplied evidence does not specify the expression system, required biosynthetic enzymes, delivery strategy, or construct design details.
The available evidence does not report the genetic components, enzymes, construct architecture, or quantitative PCB production levels underlying the method. It also does not establish performance across multiple mammalian cell types, in vivo use, or independent validation beyond the cited source.
Validation
Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication
Supporting Sources
Ranked Claims
A method for efficient synthesis of phycocyanobilin in cultured mammalian cells permits a PhyB-based light-induced dimerization system to be genetically encoded.
Recently, the authors developed a method for the efficient synthesis of phycocyanobilin, a chromophore of phytochrome B (PhyB), in cultured mammalian cells. This technique permits the LID system to be made with PhyB genetically encoded
The genetically encoded PhyB-based light-induced dimerization system enables manipulation of signal transduction with longer-wavelength light such as red and infrared light.
This technique permits the LID system to be made with PhyB genetically encoded and manipulation of signal transduction with light of longer wavelength such as red and infrared light.
Comparisons
Source-backed strengths
The main demonstrated strength is efficient PCB synthesis in cultured mammalian cells, which removes a key barrier to using PhyB-based optogenetics in that context. The enabled system is specifically noted to operate with longer-wavelength illumination, including red and infrared light, for signal-transduction manipulation.
Source:
described as efficient
Source:
enables use of longer-wavelength light such as red and infrared light in the PhyB system
Ranked Citations
- 1.FoundationalSource 1Comprehensive series in photochemistry and photobiology/Comprehensive series in photochemical & photobiological sciences2018Claim 1Claim 2
Derived from 2 linked claims. Example evidence: Recently, the authors developed a method for the efficient synthesis of phycocyanobilin, a chromophore of phytochrome B (PhyB), in cultured mammalian cells. This technique permits the LID system to be made with PhyB genetically encoded