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Intrinsically Disordered Proteins

Intrinsically Disordered Proteins

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...

Conserved Binding Sites

Conserved Binding Sites

Many proteins’ biological role depends on their interactions with their ligands, small molecules that bind to specific locations on the protein known as ligand-binding sites. Ligand-binding sites are often conserved among homologous proteins as these sites are critical for protein function.
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Protein-protein Interfaces

Protein-protein Interfaces

Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a...

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Ligand Binding Sites

Ligand Binding Sites

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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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Author Spotlight: A Computational Approach to Decipher Amino Acid Preferences in Multispecific Protein-Protein Interactions

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Computational Methods to Predict Intrinsically Disordered Regions and Functional Regions in Them.

Hiroto Anbo¹, Motonori Ota², Satoshi Fukuchi³

¹Faculty of Engineering, Maebashi Institute of Technology, Maebashi, Japan.

Methods in Molecular Biology (Clifton, N.J.)

|March 24, 2023

Summary

This summary is machine-generated.

Intrinsically disordered regions (IDRs) lack fixed structures, making them unsuitable for homology modeling. This review covers methods for predicting these protein regions from amino acid sequences.

Keywords:

Amino acid sequences Bioinformatics Intrinsically disordered protein Machine learning Molecular recognition features Protean segments Short linear motif

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Area of Science:

Proteomics
Bioinformatics
Structural Biology

Background:

Intrinsically disordered regions (IDRs) are protein segments lacking stable 3D structures.
IDRs pose challenges for traditional protein structure prediction methods like homology modeling.
The unique amino acid composition of IDRs differentiates them from structured domains.

Approach:

This chapter reviews computational methods for predicting IDRs based on amino acid sequence.
It explores various algorithms and features utilized in IDR prediction.
A case study demonstrates the practical application of IDR prediction techniques.

Key Points:

IDRs are crucial for various biological functions despite their lack of structure.
Accurate prediction of IDRs is essential for understanding protein function and interactions.
Sequence-based prediction methods offer a viable approach to identify IDRs.

Conclusions:

Computational prediction of IDRs is a rapidly advancing field with significant implications for structural biology.
Excluding IDRs from homology modeling targets improves model accuracy.
Further development of prediction algorithms will enhance our understanding of proteome-wide protein disorder.