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The Importance of Correct Protein Concentration for Kinetics and Affinity Determination in Structure-function Analysis
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Published on: March 17, 2010

Bioactive cystine knot proteins.

Norelle L Daly1, David J Craik

  • 1Division of Chemistry & Structural Biology, Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD 4072, Australia.

Current Opinion in Chemical Biology
|March 3, 2011
PubMed
Summary
This summary is machine-generated.

The cystine knot is a stable protein structure found in nature. This motif is being explored for developing new therapeutic and diagnostic agents due to its versatility and synthetic accessibility.

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Area of Science:

  • Protein structural biology
  • Chemical biology
  • Biotechnology

Background:

  • The cystine knot is a protein structural motif known for its exceptional stability.
  • This motif has evolved across fungi, plants, and animals.
  • It serves as a versatile framework for displaying bioactive peptide sequences.

Purpose of the Study:

  • To provide an updated overview of cystine knot topology and protein diversity.
  • To highlight recent chemical biology applications of the cystine knot.
  • To discuss its potential in developing therapeutic and diagnostic agents.

Main Methods:

  • Review of existing literature on cystine knot structure and function.
  • Analysis of recent chemical biology studies utilizing the cystine knot motif.
  • Exploration of synthetic and recombinant approaches for cystine knot proteins.

Main Results:

  • Detailed update on the topological characteristics of the cystine knot.
  • Description of the combinatorial diversity of proteins featuring this motif.
  • Examples of recent advancements in therapeutic and diagnostic agent development.

Conclusions:

  • The cystine knot is a highly stable and adaptable protein framework.
  • It has broad evolutionary origins and diverse biological roles.
  • Its amenability to synthesis offers wide-ranging applications in medicine, chemistry, and biology.