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Related Concept Videos

Protein Dynamics in Living Cells01:19

Protein Dynamics in Living Cells

Different fluorescence-based techniques are used to study the protein dynamics in living cells. These techniques include FRAP, FRET, and PET.
Fluorescent recovery after photobleaching (FRAP) is a fluorescent-protein-based detection technique used to quantify protein movement rates within the cell. This method exposes a small portion of the cell to an intense laser beam. The laser beam causes permanent photobleaching of the fluorophore-tagged proteins in the exposed region. As the bleached...
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Intrinsically disordered proteins are a group of proteins that do not fold into specific three-dimensional structures. Their structural flexibility allows them to complement ordered proteins to perform functions that are inaccessible to rigid structures. They are more common in eukaryotes than prokaryotes and may either be exclusively intrinsically disordered or hybrid proteins, consisting of a mix of ordered and disordered regions. The absence of a rigid structure in these proteins can be...
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Proteins are polymers of amino acid residues. They are versatile and responsible for different cellular functions, including DNA replication, molecular transport, catalysis, and structural support. Proteins have a hierarchical structure comprising at least three levels of organization: primary, secondary, and tertiary structure. Some large proteins have a quaternary structure where individual protein subunits are linked together.
The primary structure of a protein is its amino acid sequence.
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Protein Organization01:13

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Protein Organization01:24

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Proteins are polymers of amino acid residues. They are versatile and responsible for different cellular functions, including DNA replication, molecular transport, catalysis, and structural support. Proteins have a hierarchical structure comprising at least three levels of organization: primary, secondary, and tertiary structure. Some large proteins have a quaternary structure where individual protein subunits are linked together.
The primary structure of a protein is its amino acid sequence.

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Study of Protein Dynamics via Neutron Spin Echo Spectroscopy
08:03

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Published on: April 13, 2022

ProDy: protein dynamics inferred from theory and experiments.

Ahmet Bakan1, Lidio M Meireles, Ivet Bahar

  • 1Department of Computational and Systems Biology, and Clinical & Translational Science Institute, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA. ahb12@pitt.edu

Bioinformatics (Oxford, England)
|April 8, 2011
PubMed
Summary

We created ProDy, a Python package for analyzing protein dynamics. It helps compare experimental and theoretical data for various protein structures and states.

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Area of Science:

  • Biophysics
  • Structural Biology
  • Computational Biology

Background:

  • Protein dynamics analysis is crucial for understanding biomolecular function.
  • Existing methods may lack comprehensive tools for comparing experimental and theoretical data.
  • Open-source software facilitates broader adoption and development in the field.

Purpose of the Study:

  • To develop a versatile Python package for structure-based protein dynamics analysis.
  • To enable quantitative comparison of experimental structural variations with theoretical predictions.
  • To provide tools for analyzing diverse datasets including mutants, homologues, and ligand-bound states.

Main Methods:

  • Development of a Python package named ProDy.
  • Implementation of functions for quantitative characterization of structural variations.
  • Integration of comparative analysis tools for experimental and theoretical data.
  • Inclusion of visualization capabilities for conformational changes.

Main Results:

  • ProDy facilitates the analysis of heterogeneous structural datasets.
  • The package allows comparison between experimentally resolved structures and predicted dynamics.
  • ProDy supports analysis across various protein families, mutants, and functional states.
  • An extensible Application Programming Interface (API) is provided for user customization.

Conclusions:

  • ProDy offers a robust platform for structure-based protein dynamics analysis.
  • The package enhances the ability to compare experimental and theoretical data.
  • ProDy's design supports extensibility and integration of new analytical methods.