Biotinylated Residue Incorporation
Biotinylated Residue Incorporation - Related Videos
11:47
Residue-specific Incorporation of Noncanonical Amino Acids into Model Proteins Using an Escherichia coli Cell-free Transcription-translation System
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Cited by 16 •
2016
An easy-to-use, cell-free expression protocol for the residue-specific incorporation of noncanonical amino acid analogs into proteins, including downstream analysis, is presented for medical, pharmaceutic, structural and functional studies.
09:13
Cell-surface Biotinylation Assay
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2023
A cell can regulate the amount of particular proteins on its cell membrane through endocytosis, following which cell surface proteins are effectively sequestered in the cytoplasm. Once within a cell, these surface proteins can be either destroyed or “recycled” back to the membrane. The cell surface biotinylation assay provides researchers with a way to study these phenomena. The technique makes use of a derivative of the small molecule biotin, which can label surface proteins and then be...
15:04
PeptiQuick, a One-Step Incorporation of Membrane Proteins into Biotinylated Peptidiscs for Streamlined Protein Binding Assays
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Cited by 14 •
2019
We present a method that combines membrane protein purification and reconstitution into peptidiscs in a single chromatographic step. Biotinylated scaffolds are used for direct surface attachment and measurement of protein-ligand interactions via biolayer interferometry.
11:32
Mapping RNA-RNA Interactions Globally Using Biotinylated Psoralen
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Cited by 20 •
2017
Here, we detail the method of Sequencing of Psoralen crosslinked, Ligated, and Selected Hybrids (SPLASH), which enables genome-wide mapping of intramolecular and intermolecular RNA-RNA interactions in vivo. SPLASH can be applied to study RNA interactomes of organisms including yeast, bacteria and humans.
01:26
Residual Stresses
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2024
Residual stresses reside in a structure even after removing the original stress inducer. This phenomenon often arises from varied plastic deformations across different parts of a structure. Consider a rod stretched beyond its yield point. It will not regain its original length due to permanent deformation. Even after load removal, the rod does not entirely lose stress because of uneven plastic deformations, resulting in residual stresses. The computation of these stresses in structures is...
FAQs
Biotinylated residue incorporation becomes analytically useful because the introduced biotin serves as a recognition handle for avidin or streptavidin. Their high-affinity, stable interaction lets a labeled molecule remain associated with a capture surface or detection reagent during an assay. Consequently, the same label can support selective enrichment, visualization, or purification, depending on the downstream format.
Chemical modification attaches biotin after a biomolecule has been produced, whereas enzymatic incorporation introduces it during molecular synthesis. This distinction provides two different labeling points: post-synthetic modification or label placement as the molecule is being made. The selected route can therefore be matched to the biomolecule and the intended analytical workflow.
The strategy combines a small, vitamin-derived tag with a strong avidin or streptavidin binding interaction. This pairing creates a detectable or isolatable handle while allowing the labeled biomolecule to retain relevant functional behavior. That balance is important for biological experiments in which researchers need to track, recover, or visualize a molecule without substantially altering its activity.
A typical workflow first introduces biotin into the target protein, nucleic acid, or other biomolecule through chemical modification or enzymatic synthesis. The labeled material is then exposed to an avidin- or streptavidin-based reagent, affinity matrix, fluorescent conjugate, or enzyme-linked reagent. The resulting interaction enables capture, purification, or detection in the chosen assay format.
For protein studies, the label can turn a molecule into a selectively recoverable probe. Avidin- or streptavidin-based capture can help isolate the labeled species, while fluorescent or enzyme-linked reagents can reveal its presence. These outputs support protein interaction studies and purification workflows, where selective recovery or detection is the central measurement.
In nucleic acid work, the label supports hybridization assays that identify complementary interactions. In cell-oriented experiments, biotinylated molecules can be used for cell-surface labeling and imaging. The same chemistry also fits analytical workflows that track biomolecules, making the strategy useful across molecular detection, localization, and isolation tasks.