Protein Flexibility
Protein Flexibility - Related Videos
08:30
Operant Procedures for Assessing Behavioral Flexibility in Rats
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Cited by 69 •
2015
The ability to assess executive functions such as behavioral flexibility in rats is useful for investigating the neurobiology of cognition in both intact animals and disease models. Here we describe automated tasks for assessing strategy shifting and reversal learning, which are particularly sensitive to disruptions in prefrontal cortical networks.
03:47
Implantation of a Flexible Biocompatible Probe in a Glioblastoma Mouse Model
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2025
Source: Lefevre, M. C., et al., Flexible Organic Electronic Devices for Pulsed Electric Field Therapy of Glioblastoma. J. Vis. Exp. (2022)This video demonstrates the implantation of a flexible, biocompatible probe in a glioblastoma mouse model to deliver targeted pulsed electric field therapy for neurotherapeutic applications.
08:46
Green Fluorescent Protein-based Expression Screening of Membrane Proteins in Escherichia coli
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Cited by 34 •
2015
A streamlined approach to screening for the expression of recombinant membrane proteins in Escherichia coli based on fusion to green fluorescent protein is presented.
09:45
Escherichia coli-Based Cell-Free Protein Synthesis: Protocols for a robust, flexible, and accessible platform technology
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Cited by 71 •
2019
This protocol details the steps, costs, and equipment necessary to generate E. coli-based cell extracts and implement in vitro protein synthesis reactions within 4 days or less. To leverage the flexible nature of this platform for broad applications, we discuss reaction conditions that can be adapted and optimized.
06:40
Insertion of Flexible Neural Probes Using Rigid Stiffeners Attached with Biodissolvable Adhesive
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Cited by 99 •
2013
Insertion of flexible neural microelectrode probes is enabled by attaching probes to rigid stiffeners with polyethylene glycol (PEG). A unique assembly process ensures uniform and repeatable attachment. After insertion into tissue, the PEG dissolves and the stiffener is extracted. An in vitro test method evaluates the technique in agarose gel.
FAQs
Thermal motion continually perturbs the interactions that stabilize a protein, while hydrogen bonds, hydrophobic forces, and electrostatic contacts help determine which conformations remain favorable. When these interactions shift, particular regions may move, open, close, or reorganize. The resulting balance between movement and stabilization influences which structural states are available for biological activity.
These noncovalent interactions help stabilize different parts of a protein and can change as the structure moves. Their shifting patterns allow some regions to reorganize without requiring permanent chemical changes. Because the interactions influence which conformations are favored, they can affect molecular recognition, catalytic behavior, signaling, and interactions with other biomolecules.
Distinct conformational states can expose, conceal, or reposition regions involved in binding and activity. A protein may therefore recognize one molecular partner more effectively in one state and support a different interaction after opening or reorganizing. This relationship between structural state and function helps explain why protein shape must be interpreted as dynamic rather than as a single unchanging arrangement.
Studying Protein Flexibility allows researchers to relate observed structural features to the range of conformations a protein may sample. This perspective can clarify how movement contributes to molecular recognition, enzyme catalysis, signaling, or biomolecular interactions. It also helps prevent structural interpretation from treating one observed conformation as the complete explanation of biological function.
Mutations can change the structural context in which conformational changes occur, potentially affecting the protein’s ability to open, close, reorganize, or interact with other molecules. Examining these effects helps researchers connect altered structure with altered function. This provides a basis for explaining how sequence changes can influence biological activity through conformational behavior.
Protein flexibility is relevant because a drug may target a particular conformational state rather than every structure a protein can adopt. Understanding how regions move and how interactions stabilize alternative states can help researchers identify functionally important structural arrangements. This supports efforts to design drugs that engage specific states associated with molecular recognition or biological activity.