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Direct quantification of the rupture force of single hyaluronan/hyaluronan binding protein bonds.

Abstract
The non-covalent bond between aggrecan and hyaluronan is critical for maintaining the normal structure and function of the extracellular matrix in articular cartilage. The failure of this bond can cause the loss of aggrecan and destruction of the extracellular matrix of articular cartilage. In this study, the rupture force of the single bond between hyaluronan and hyaluronan binding protein - the complex of the hyaluronan binding region of aggrecan and link protein - was directly measured with a nanomechanical testing system as 40+/-11 pN. The results were compared to a theoretical prediction based on a smart version of the Monte Carlo simulation.
AuthorsXuhui Liu, Jian Q Sun, Michael H Heggeness, Ming-Long Yeh, Zong-Ping Luo
JournalFEBS letters (FEBS Lett) Vol. 563 Issue 1-3 Pg. 23-7 (Apr 9 2004) ISSN: 0014-5793 [Print] Netherlands
PMID15063717 (Publication Type: Comparative Study, Journal Article, Research Support, Non-U.S. Gov't)
Chemical References
  • Aggrecans
  • Antigens, CD44
  • Extracellular Matrix Proteins
  • Lectins, C-Type
  • Proteins
  • Proteoglycans
  • link protein
  • Hyaluronic Acid
Topics
  • Aggrecans
  • Antigens, CD44 (metabolism)
  • Cartilage, Articular (metabolism)
  • Computer Simulation
  • Extracellular Matrix (metabolism)
  • Extracellular Matrix Proteins
  • Hyaluronic Acid (metabolism)
  • Lectins, C-Type
  • Models, Theoretical
  • Molecular Weight
  • Monte Carlo Method
  • Nanotechnology (instrumentation, methods)
  • Proteins (metabolism)
  • Proteoglycans (metabolism)

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