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Related Concept Videos

Intrinsically Disordered Proteins02:18

Intrinsically Disordered Proteins

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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...
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Bone contains a relatively small number of cells entrenched in a matrix of collagen fibers that provide an adherent surface for inorganic salt crystals. Both components of the matrix, organic and inorganic, contribute to the unusual properties of bone. Without collagen, bones would be brittle and shatter easily. Without mineral crystals, bones would flex and provide little support. This can be observed by an experiment: when the minerals of a bone are dissolved by soaking the bone in...
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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. 
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Updated: Mar 26, 2026

Analysis of Minerals Produced by hFOB 1.19 and Saos-2 Cells Using Transmission Electron Microscopy with Energy Dispersive X-ray Microanalysis
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Intrinsically disordered proteins and biomineralization.

Adele L Boskey1, Eduardo Villarreal-Ramirez1

  • 1Musculoskeletal Integrity Program, Hospital for Special Surgery, New York, NY 10021, USA.

Matrix Biology : Journal of the International Society for Matrix Biology
|January 26, 2016
PubMed
Summary

Intrinsically disordered proteins are vital for biomineralization in all animals. Their flexible structures enable binding to various surfaces, crucial for controlling mineral formation, though specific interactions require further study.

Keywords:
BiomineralizationHydroxyapatiteIntrinsically disordered proteinsPhosphophoryn

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Area of Science:

  • Biochemistry
  • Biomineralization
  • Protein Science

Background:

  • Biomineralization, the process of forming mineralized tissues, is regulated by cellular machinery and secreted proteins.
  • Many proteins involved in biomineralization are intrinsically disordered, adopting specific structures upon interaction with binding partners.

Purpose of the Study:

  • To review the critical role of intrinsically disordered proteins (IDPs) in biomineralization.
  • To explore the functional significance of IDPs using SIBLING proteins as examples.

Main Methods:

  • Literature review and theoretical speculation.
  • Analysis of protein-disorder and binding interactions in biomineralization.

Main Results:

  • IDPs are crucial for biomineralization due to their flexible nature.
  • IDPs interact with mineral ions, crystals, templates, and other biomolecules.

Conclusions:

  • The flexible structure and versatile binding capabilities of IDPs are essential for biomineralization.
  • Further research is needed to elucidate the precise binding interactions, energetics, and kinetics of IDPs in biomineralization.