Browse the toolkit beneath workflows. The mechanism branch runs mechanism -> architecture -> component, while the technique branch runs from high-level approaches down to concrete methods.
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Mechanism Branch
Layer 1
Mechanisms
Top-level concepts: biophysical action modes such as heterodimerization, photocleavage, or RNA binding.
Layer 2
Architectures
Arrangements that realize or deploy mechanisms, including switches, construct patterns, and delivery strategies.
Layer 3
Components
Low-level parts and sequence-defined elements used inside architectures, including protein domains and RNA elements.
Technique Branch
Layer 1
Approaches
High-level engineering practices such as computational design, directed evolution, sequence verification, and functional assay.
Layer 2
Methods
Concrete methods used to design, build, verify, or characterize engineered systems.
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The PHR domain of Arabidopsis thaliana cryptochrome 2 is a blue-light-responsive protein domain that self-oligomerizes upon illumination. In the cited optogenetic application, it was fused into a construct that rapidly modulated caspase-8 activation, leading to caspase-3 accumulation and induction of apoptosis.