Related Experiment Video
Updated: Aug 20, 2025
09:14
Improving 2D and 3D Skin In Vitro Models Using Macromolecular Crowding
Published on: August 22, 2016
12.6K
Connecting the Dots: Macromolecular Crowding and Protein Aggregation.
Gufran Ahmed Siddiqui1, Aabgeena Naeem2
1Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh-202002, India.
Journal of Fluorescence
|November 23, 2022
Summary
Macromolecular crowding influences protein folding, potentially leading to misfolded proteins and aggregates. This review explores the link between crowding, protein aggregation, and associated diseases.
Area of Science:
- Biochemistry and Molecular Biology
- Cellular Biophysics
Background:
- Proteins are essential dynamic macromolecules crucial for life.
- Proper protein folding is vital for biological function.
- Misfolded proteins can aggregate, causing diseases like neurodegeneration and diabetes.
Purpose of the Study:
- To elucidate the relationship between macromolecular crowding and protein aggregation.
- To discuss the consequences of protein aggregation in cellular environments.
Main Methods:
- Literature review of studies on protein folding and aggregation.
- Analysis of the impact of macromolecular crowding on protein conformation.
Main Results:
- Macromolecular crowding, a common cellular condition, affects protein conformation.
- Altered protein conformation can promote the formation of misfolded protein aggregates.
Conclusions:
- Macromolecular crowding is a significant factor influencing protein aggregation.
- Understanding this relationship is key to addressing protein misfolding diseases.
Related Concept Videos
03:03Amyloid Fibrils
9.7K
Amyloid fibrils are aggregates of misfolded proteins. Under most circumstances, misfolded proteins are either refolded by chaperone proteins or degraded by the proteasome. However, in the case of a mutation or a disease, these proteins can accumulate to form large clusters and often further assemble to form elongated fibers, called fibrils.
Amyloid deposits were observed as early as 1639 in the liver and the spleen. In 1854, Rudolph Virchow performed iodine staining,...
Amyloid deposits were observed as early as 1639 in the liver and the spleen. In 1854, Rudolph Virchow performed iodine staining,...
9.7K
03:00Molecular Chaperones and Protein Folding
18.2K
The native conformation of a protein is formed by interactions between the side chains of its constituent amino acids. When the amino acids cannot form these interactions, the protein cannot fold by itself and needs chaperones. Notably, chaperones do not relay any additional information required for the folding of polypeptides; the native conformation of a protein is determined solely by its amino acid sequence. Chaperones catalyze protein folding without being a part of the folded protein.
The...
The...
18.2K
02:41Protein Complex Assembly
10.7K
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...
Many viruses self-assemble into a fully functional unit using the infected host cell to...
10.7K
01:25Protein Folding
8.3K
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 Structure Is Critical to Its Biological Function
Proteins perform a wide range of biological functions such as catalyzing chemical reactions, providing...
8.3K