Related Experiment Video
Updated: Feb 1, 2026
08:49
Incorporating Target Protein Structure Flexibility and Dynamics in Computational Drug Discovery Using Ensemble-Based Docking Analysis
Published on: June 20, 2025
1.2K
Computational studies of polynucleotide flexibility
Nucleic Acids Research
|February 11, 1982
Summary
This study explores polynucleotide flexibility using computational methods. We analyze furanose ring motions and chain backbone rotations to understand DNA and RNA dynamics.
Area of Science:
- Computational chemistry
- Molecular dynamics
- Biophysics
Background:
- Understanding polynucleotide flexibility is crucial for various biological processes.
- Previous studies have explored aspects of DNA and RNA dynamics.
Purpose of the Study:
- To investigate polynucleotide flexibility through computational analysis.
- To describe the pseudorotational motions of the furanose ring.
- To analyze the correlated rotations of the polynucleotide chain backbone.
Main Methods:
- Semiempirical potential energy calculations.
- Statistical mechanical analyses.
- Molecular modeling of polynucleotide structures.
Main Results:
- Detailed insights into the pseudorotational motions of the furanose sugar.
- Characterization of long-range correlated rotations within the polynucleotide backbone.
- Quantitative description of flexibility parameters.
Conclusions:
- The combination of computational methods effectively probes polynucleotide flexibility.
- Understanding these motions provides a basis for predicting nucleic acid structure and function.
- This work contributes to the field of molecular biophysics and structural biology.
Related Concept Videos
01:27Imaging Studies III: Computed Tomography
368
DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
368
01:24Area Computation by the Alternative Coordinate Method
632
The alternative coordinate method, also known as the Shoelace Formula, is a technique for determining the area of a traverse using Cartesian coordinates. This method relies on the sequential arrangement of x and y coordinates for each point of the shape, ensuring accuracy and ease of application.In this approach, each corner's x and y coordinates are listed as fractions, with the x-coordinate as the numerator and the y-coordinate as the denominator. These coordinates are arranged sequentially...
632
01:25Design Example: Traverse Angle Computations
341
Traverse angle computations are a critical component of surveying, used to compute the internal angles within a closed traverse. A traverse consists of a series of connected lines forming a closed loop, often used for land boundary delineation or mapping. Calculating the internal angles ensures accuracy in the traverse geometry and is essential for checking survey data integrity.The process begins with known azimuths and bearings of the traverse sides. Internal angles at each vertex are...
341
01:10Computed Tomography
8.3K
Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
8.3K
00:52¹H NMR of Conformationally Flexible Molecules: Temporal Resolution
1.3K
At room temperature, the chair conformer of cyclohexane undergoes rapid ring flipping between two equivalent chair conformers at a rate of approximately 105 times per second. These two chair conformers are in equilibrium. The rapid ring flipping results in the interconversion of the axial proton to an equatorial proton and an equatorial to the axial proton. Such interconversions are too rapid and cannot be detected on the NMR timescale. Hence, the NMR spectrometer cannot distinguish between the...
1.3K
01:19The Role of Ion Channels in Neuronal Computation
3.9K
A postsynaptic neuron usually receives numerous impulses from several other presynaptic neurons. The axon hillock of the postsynaptic neuron integrates all these signals and determines the likelihood of firing an action potential.
Sometimes a single EPSP is strong enough to induce an action potential in the postsynaptic neuron. However, multiple presynaptic inputs must often create EPSPs around the same time for the postsynaptic neuron to be sufficiently depolarized to fire an action potential....
Sometimes a single EPSP is strong enough to induce an action potential in the postsynaptic neuron. However, multiple presynaptic inputs must often create EPSPs around the same time for the postsynaptic neuron to be sufficiently depolarized to fire an action potential....
3.9K