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Related Concept Videos

Intrinsically Disordered Proteins02:18

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...
Intrinsically Disordered Proteins02:18

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...
Amyloid Fibrils03:03

Amyloid Fibrils

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, normally used to...
Conservation of Protein Domains Over Different Proteins02:26

Conservation of Protein Domains Over Different Proteins

Protein domains are small structurally independent units that are part of a single amino acid chain.  Although these domains are often structurally independent, they may rely on synergistic effects to perform their functions as part of a larger protein. Protein domains may be conserved within the same organism, as well as across different organisms.
A limited set of protein domains often duplicate and recombine during evolution. These domains can be organized in different combinations to form...
Protein Organization01:24

Protein Organization

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.
Protein Organization01:13

Protein Organization

Overview

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NMR 15N Relaxation Experiments for the Investigation of Picosecond to Nanoseconds Structural Dynamics of Proteins
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Intrinsically disordered proteins: a 10-year recap.

Peter Tompa1

  • 1VIB Department of Structural Biology, Vrije Universiteit Brussel, Brussels, Belgium. ptompa@vub.ac.be

Trends in Biochemical Sciences
|September 20, 2012
PubMed
Summary
This summary is machine-generated.

Many proteins exist in intrinsically disordered states, challenging the traditional structure-function paradigm. Recent advances in experimental and computational methods confirm the significance of intrinsically disordered proteins (IDPs), advocating for their inclusion in mainstream biology education.

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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Structural Biology

Background:

  • The traditional 'structure-function paradigm' posits that protein structure dictates function.
  • The concept of intrinsically disordered proteins (IDPs) initially challenged this dogma.
  • Overwhelming evidence suggested that protein structure was paramount to its function.

Purpose of the Study:

  • To review the shift in understanding protein structure and function over the past decade.
  • To highlight the progress in experimental and computational approaches to studying IDPs.
  • To advocate for the integration of 'unstructural' biology into standard textbooks.

Main Methods:

  • Review of experimental techniques used to identify and characterize IDPs.
  • Analysis of computational approaches for modeling disordered protein states.
  • Synthesis of a decade of research findings on protein intrinsically disordered regions.

Main Results:

  • The concept of intrinsically disordered proteins (IDPs) has gained widespread acceptance.
  • Significant advancements in experimental and computational methods have provided robust evidence for IDPs.
  • The importance and prevalence of IDPs are now considered undeniable.

Conclusions:

  • The field has moved from skepticism to acceptance of intrinsically disordered proteins (IDPs).
  • IDPs are crucial for a comprehensive understanding of protein structure and function.
  • Textbooks on biology and biochemistry should incorporate the study of 'unstructural' biology.