LADL (light-activated dynamic looping system) is a multi-component optogenetic genome-engineering platform that targets two genomic anchors with CRISPR guide RNAs and promotes their spatial co-localization through light-induced heterodimerization between CRY2 and dCas9-CIBN. In the cited 2018 study, this engineered looping altered endogenous gene expression, including increased nascent Zfp462 transcription and increased synchronous Sox2 expression.
Toolkit Items
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 1
Mechanisms
Layer 2
Architectures
▾Arrangements that realize or deploy mechanisms, including switches, construct patterns, and delivery strategies.
Layer 2
Architectures
Layer 3
Components
▾Low-level parts and sequence-defined elements used inside architectures, including protein domains and RNA elements.
Layer 3
Components
Technique Branch
Layer 1
Approaches
▾High-level engineering practices such as computational design, directed evolution, sequence verification, and functional assay.
Layer 1
Approaches
Layer 2
Methods
▾Concrete methods used to design, build, verify, or characterize engineered systems.
Layer 2
Methods
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