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Protein Complex Assembly

Protein Complex Assembly

Proteins can form homomeric complexes with another unit of the same protein or heteromeric complexes with different types. Most protein complexes self-assemble spontaneously via ordered pathways, while some proteins need assembly factors that guide their proper assembly. Despite the crowded intracellular environment, proteins usually interact with their correct partners and form functional complexes.
Many viruses self-assemble into a fully functional unit using the infected host cell to...

Protein Complex Assembly

Protein Complex Assembly

Assembly of Complex Microtubule Structures

Assembly of Complex Microtubule Structures

Complex microtubule structures are present in resting cells and in dividing cells. In resting cells, they are responsible for maintaining the cellular architecture, tracks for intracellular transport, positioning of organelles, assembly of cilia and flagella. They mediate the bipolar spindle assembly for chromosomal segregation and positioning of the cell division plate in dividing cells. The formation of microtubule complex structures depends on the cell type, cell stage, and cell function.

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...

Assembly of Signaling Complexes

Assembly of Signaling Complexes

Multiprotein signaling complexes are formed in a dynamic process involving protein-protein interactions at the cytoplasmic domain of transmembrane receptors or enzymatic and non-enzymatic proteins associated with the receptor. These complexes ensure the activation and propagation of intracellular signals that regulate cell functions.
Interaction domains in cell signaling
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Structural Protein Function

Structural Protein Function

Structural proteins are a category of proteins responsible for functions ranging from cell shape and movement to providing support to major structures such as bones, cartilage, hair, and muscles. This group includes proteins such as collagen, actin, myosin, and keratin.
Collagen, the most abundant protein in mammals, is found throughout the body. In connective tissue, such as skin, ligaments, and tendons, it provides tensile strength and elasticity. In bones and teeth, it mineralizes to...

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Related Experiment Video

Updated: Feb 12, 2026

Assembly and Characterization of Polyelectrolyte Complex Micelles

Assembly and Characterization of Polyelectrolyte Complex Micelles

Published on: March 2, 2020

Computational Modelling of Protein Complex Structure and Assembly.

Jonathan N Wells¹, L Therese Bergendahl², Joseph A Marsh²

¹MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK. jonathan.wells@igmm.ed.ac.uk.

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

|April 2, 2018

Summary

This summary is machine-generated.

Computational methods like homology modeling and molecular dynamics are advancing protein structure prediction and analysis. These techniques aid in solving crystal structures and studying protein complexes, enabling prediction of assembly pathways.

Keywords:

Assembly Docking Molecular dynamics Protein interactions Template-based modelling

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Related Experiment Videos

Last Updated: Feb 12, 2026

Assembly and Characterization of Polyelectrolyte Complex Micelles

Assembly and Characterization of Polyelectrolyte Complex Micelles

Published on: March 2, 2020

Analyzing Large Protein Complexes by Structural Mass Spectrometry

Analyzing Large Protein Complexes by Structural Mass Spectrometry

Published on: June 19, 2010

Analyzing Protein Architectures and Protein-Ligand Complexes by Integrative Structural Mass Spectrometry

Analyzing Protein Architectures and Protein-Ligand Complexes by Integrative Structural Mass Spectrometry

Published on: October 15, 2018

Area of Science:

Structural biology
Computational biology
Biophysics

Background:

Protein structure prediction from sequence is crucial for understanding biological function.
Homology modeling and molecular dynamics are key computational techniques in structural biology.
Advancements in computational power have expanded the capabilities of these methods.

Purpose of the Study:

To highlight the utility of computational methods in protein structure modeling.
To discuss the impact of these methods on experimental structure determination.
To explore the emerging potential of predicting protein assembly pathways.

Main Methods:

Homology modeling based on sequence similarity.
Molecular dynamics simulations from first principles.
Prediction of protein assembly pathways from 3D complex structures.

Main Results:

Homology modeling significantly simplifies solving crystal structures and electron density maps.
Molecular dynamics is becoming viable for studying protein complexes.
Prediction of protein assembly pathways is now achievable.

Conclusions:

Computational methods, including homology modeling and molecular dynamics, are powerful tools in structural biology.
These techniques enhance both theoretical modeling and experimental structure determination.
Future research can leverage these advancements for predicting complex protein assembly processes.