Biomolecular Folding
Biomolecular Folding - Related Videos
09:15
Measuring Biomolecular DSC Profiles with Thermolabile Ligands to Rapidly Characterize Folding and Binding Interactions
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Cited by 1 •
2017
We present a protocol for rapid characterization of biomolecular folding and binding interactions with thermolabile ligands using differential scanning calorimetry.
07:26
Formation of Ordered Biomolecular Structures by the Self-assembly of Short Peptides
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Cited by 6 •
2013
This paper describes the formation of highly ordered peptide-based structures by the spontaneous process of self-assembly. The method utilizes commercially available peptides and common lab equipment. This technique can be applied to a large variety of peptides and may lead to the discovery of new peptide-based assemblies.
03:00
Molecular Chaperones and Protein Folding
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2020
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...
09:17
3D Printing of Biomolecular Models for Research and Pedagogy
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Cited by 29 •
2017
Physical models of biomolecules can facilitate an understanding of their structure-function for the researcher, aid in communication between researchers, and serve as an educational tool in pedagogical endeavors. Here, we provide detailed guidance for the 3D printing of accurate models of biomolecules using fused filament fabrication desktop 3D printers.
01:49
Protein Folding
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2020
Proteins are chains of amino acids linked together by peptide bonds. Upon synthesis, a protein folds into a three-dimensional conformation which is 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 FunctionProteins perform a wide range of biological functions such as catalyzing chemical reactions, providing...
FAQs
The sequence determines how a molecular chain can arrange its chemical groups in three dimensions. Hydrophobic effects, hydrogen bonds, electrostatic interactions, and van der Waals forces then favor some conformations over others. Their combined influence directs the molecule toward structures that support specific activities, making sequence a central link between molecular information, shape, and biochemical function.
Physical conditions can change the balance among the interactions that stabilize a folded structure. Because hydrophobic forces, hydrogen bonding, electrostatic interactions, and van der Waals forces all contribute, altered conditions may favor different conformations or interfere with correct assembly. Studying these effects helps explain why a molecule may retain activity, lose function, or form abnormal structures.
Chaperone proteins assist the correct assembly of biomolecules rather than replacing the information contained in their sequences. Their involvement is especially important when a chain might assemble incorrectly or interact improperly with other molecules. In biochemistry, examining chaperone assistance helps distinguish normal folding pathways from outcomes that produce nonfunctional structures or toxic aggregates.
Researchers compare a molecule's three-dimensional structure with its biochemical activity to determine how structural organization supports function. For enzymes, this approach helps relate folding to the arrangement needed for molecular mechanisms, although the source material does not specify a particular experimental protocol. The resulting structure-function perspective supports investigations of enzyme mechanisms and altered activity.
Folding studies help researchers examine how molecular sequences and structures relate across biological systems. Because sequence influences conformation and conformation enables function, changes in sequence can be considered in relation to structural consequences and biochemical activity. This connection makes folding principles useful for research into molecular evolution, while also linking evolutionary changes to functional differences.
Misfolding matters because an incorrectly assembled molecule may lose its normal function or contribute to toxic aggregates. Studying these outcomes gives biochemists a way to connect abnormal structure with biological consequences. The same framework supports research on diseases linked to abnormal protein structure and informs broader work in biotechnology, where maintaining useful molecular function is important.