Source 1review2021International Journal of Molecular Sciences
Toolkit/tethered ligands
tethered ligands
Taxonomy: Mechanism Branch / Component. Workflows sit above the mechanism and technique branches rather than replacing them.
Summary
Such compounds are designed in a modular fashion, combining a known ligand of the target protein and a photochromic group, as well as an additional electrophilic group for tethered ligands.
Usefulness & Problems
No literature-backed usefulness or problem-fit explainer has been materialized for this record yet.
Published Workflows
Objective: Rationally design and optimize photoswitchable ligands for voltage- and ligand-gated ion channels by integrating structural biology with computational modeling and experimental data.
Why it works: The review states that structural and computational methods provide insights that guide photoswitch design, identify attachment-compatible residues, and explain isomer-specific activity, mutation effects, and subtype selectivity.
photoswitch isomer-dependent modulation of ligand activitybinding-pocket engagementcovalent tethering near ligand binding pocketsstructural mappinghomology modelingmolecular dockingmolecular dynamicsenhanced samplingintegration with experimental data
Stages
- 1.Structure-informed design and target-site mapping(library_design)
The review states that design can be optimized by including structural data and that structural mapping helps identify residues suitable for mutagenesis and covalent attachment.
Selection: Use structural data to design modular photoswitchable ligands and identify residues near the ligand binding pocket amenable to mutagenesis and covalent attachment.
- 2.Computational modeling of target-ligand complexes(functional_characterization)
The review states that modeling of target protein-ligand complexes can shed light on different activities of the two photoswitch isomers, the effect of site-directed mutations on binding, and ion channel subtype selectivity.
Selection: Model the target protein in complex with the photoswitchable ligand to understand isomer-specific activities, mutation effects on binding, and subtype selectivity.
- 3.Integration with experimental data for optimization(confirmatory_validation)
The review explicitly concludes that integration of computational modeling with experimental data greatly facilitates photoswitchable ligand design and optimization.
Selection: Combine computational modeling with experimental data to facilitate design refinement and optimization.
Taxonomy & Function
Primary hierarchy
Mechanism Branch
Component: A low-level protein part used inside a larger architecture that realizes a mechanism.
Target processes
No target processes tagged yet.
Input: Light
Validation
Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication
Supporting Sources
Ranked Claims
Photoswitchable ligands can enable optical control and investigation of neuronal activity.
Structural mapping can help identify residues near the ligand binding pocket that are amenable to mutagenesis and covalent attachment.
Photoswitchable ligands are designed modularly by combining a known target ligand with a photochromic group, and tethered ligands additionally include an electrophilic group.
Modeling target proteins in complex with photoswitchable ligands can clarify differences between photoswitch isomers, effects of site-directed mutations on binding, and ion channel subtype selectivity.
Homology modeling, molecular docking, molecular dynamics, and enhanced sampling can provide structural insights that guide photoswitch design and help explain observed light-regulated effects.
Approval Evidence
1 source2 linked approval claimsfirst-pass slug tethered-ligands
Such compounds are designed in a modular fashion, combining a known ligand of the target protein and a photochromic group, as well as an additional electrophilic group for tethered ligands.
Source:
design guidancesupports
Structural mapping can help identify residues near the ligand binding pocket that are amenable to mutagenesis and covalent attachment.
Source:
design principlesupports
Photoswitchable ligands are designed modularly by combining a known target ligand with a photochromic group, and tethered ligands additionally include an electrophilic group.
Source:
Comparisons
No literature-backed comparison notes have been materialized for this record yet.
Ranked Citations
- 1.