Related Experiment Video
Updated: Jun 25, 2025
08:59
4D Imaging of Protein Aggregation in Live Cells
Published on: April 5, 2013
17.4K
The hidden world of protein aggregation
Bahareh Dabirmanesh1, Khosro Khajeh1, Vladimir N Uversky2
1Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran.
Summary
Protein misfolding and aggregation are complex cellular biology mysteries. This chapter summarizes current knowledge and highlights unanswered questions driving future research in protein aggregation.
Area of Science:
- Cellular Biology
- Biochemistry
- Molecular Medicine
Background:
- Protein misfolding and aggregation are implicated in various diseases.
- Understanding these processes is crucial for developing therapeutic strategies.
- Despite progress, the precise mechanisms remain incompletely understood.
Purpose of the Study:
- To summarize key conclusions regarding protein aggregation from previous chapters.
- To identify persistent obstacles in the study of protein misfolding.
- To highlight unanswered questions that fuel ongoing scientific inquiry.
Main Methods:
- Review of existing literature and research findings.
- Synthesis of data from previous chapters.
- Identification of knowledge gaps and challenges.
Main Results:
- Consolidation of established knowledge on protein aggregation pathways.
- Articulation of specific challenges in studying protein dynamics.
- Enumeration of critical questions for future research.
Conclusions:
- Protein aggregation remains a significant challenge in cellular biology.
- Further research is essential to unravel the complexities of protein misfolding.
- Addressing these questions will pave the way for novel therapeutic interventions.
Related Concept Videos
03:03Amyloid Fibrils
9.5K
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,...
9.5K
01:25Protein Folding
8.0K
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...
8.0K
03:00Molecular Chaperones and Protein Folding
17.9K
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...
17.9K
01:13Protein Organization
137.3K
Overview
137.3K
02:15Protein and Protein Structure
79.4K
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...
A protein's shape is critical to its function. For example, an enzyme...
79.4K
02:18Intrinsically Disordered Proteins
17.8K
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...
17.8K