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Protein Organization

Protein Organization

Protein Organization

Protein Organization

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.

Protein and Protein Structure

Protein and Protein Structure

Proteins are one of the most abundant organic molecules in living systems and have the most diverse range of functions of all macromolecules. Proteins may be structural, regulatory, contractile, or protective. They may serve in transport, storage, or membranes; or they may be toxins or enzymes. Their structures, like their functions, vary greatly. They are all, however, amino acid polymers arranged in a linear sequence.
A protein's shape is critical to its function. For example, an enzyme can...

Protein Folding

Protein Folding

Protein Folding

Protein Folding

Proteins are chains of amino acids linked together by peptide bonds. Upon synthesis, a protein folds into a three-dimensional conformation, critical to its biological function. Interactions between its constituent amino acids guide protein folding, and hence the protein structure is primarily dependent on its amino acid sequence.
Protein Structure Is Critical to Its Biological Function
Proteins perform a wide range of biological functions such as catalyzing chemical reactions, providing...

Protein and Protein Structures

Protein and Protein Structures

Proteins are one of the most abundant organic molecules in living systems and have the most diverse range of functions of all macromolecules. Proteins may be structural, regulatory, contractile, or protective. They may serve in transport, storage, or membranes; or they may be toxins or enzymes. Their structures, like their functions, vary greatly. They are all, however, amino acid polymers arranged in a linear sequence.
A protein's shape is critical to its function. For example, an enzyme can...

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Related Experiment Video

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Investigating Protein Sequence-structure-dynamics Relationships with Bio3D-web

Investigating Protein Sequence-structure-dynamics Relationships with Bio3D-web

Published on: July 16, 2017

Protein Peeling 3D: new tools for analyzing protein structures.

Jean-Christophe Gelly¹, Alexandre G de Brevern

¹Dynamique des Structures et Interactions des Macromolécules Biologiques, INSERM UMR-S 665, Université Paris Diderot-Paris 7, Paris, France. jean-christophe.gelly@univ-paris-diderot.fr

Bioinformatics (Oxford, England)

|November 16, 2010

Summary

The improved Protein Peeling web server analyzes protein structure architecture by identifying protein units. New features enhance the detection of structural domains, unstructured elements, and protein unit stability.

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Area of Science:

Structural biology
Bioinformatics
Computational biology

Background:

Protein structure analysis is crucial for understanding biological function.
Existing tools may lack comprehensive features for detailed architectural assessment.
The Protein Peeling web server offers a solution for dissecting protein structures.

Purpose of the Study:

To introduce an enhanced version of the Protein Peeling web server.
To improve the analysis of protein structure architecture.
To provide new functionalities for domain and element identification.

Main Methods:

Utilizes an iterative splitting algorithm to identify protein units.
Incorporates new algorithms for structural domain identification.
Develops methods for detecting unstructured terminal elements.
Implements stability evaluation for protein unit structures.

Main Results:

The updated server successfully identifies protein units within complex structures.
New features enable precise detection of structural domains.
Unstructured terminal elements are accurately identified.
The stability of identified protein units can be evaluated.

Conclusions:

The enhanced Protein Peeling server offers a more comprehensive tool for protein structure analysis.
The new features provide deeper insights into protein architecture and stability.
This tool facilitates advanced research in structural biology and bioinformatics.