Cited by 42Proteoglycans and glycosaminoglycans researchOsteoarthritis Treatment and MechanismsBone and Dental Protein Studies

Cartilage link protein interacts with neurocan, which shows hyaluronan binding characteristics different from CD44 and TSG-6

Rauch, Uwe, Hirakawa, Satoshi, Oohashi, Toshitaka, Kappler, Joachim, Roos, Gunnel·2004·Matrix Biology

Abstract

The interaction of neurocan with hyaluronan was qualitatively characterized with alkaline phosphatase fusion proteins secreted by mammalian cells. The wild type neurocan hyaluronan binding domain fused to alkaline phosphatase bound to immobilized hyaluronan under physiological as well as moderately hypertonic conditions, whereas its ability to bind to immobilized chondroitin sulfate dropped rapidly with increasing salt concentration. Strong hyaluronan binding ability was still evident when in both link modules within the hyaluronan binding domain a basic amino acid was mutated, which is well conserved among link modules of hyaluronan binding proteins. A strong enhancement of the binding of neurocan to immobilized hyaluronan was observed after preincubation of the immobilized hyaluronan with cartilage link protein. Moreover, this preincubation mediated also the binding of a fusion protein representing only the immunoglobulin module of neurocan linked to alkaline phosphatase, which showed no binding to immobilized hyaluronan alone. The interaction of the neurocan immunoglobulin module with link protein could also be shown by overlay blot analysis. These observations suggest that the hyaluronan binding characteristics of paired link modules are different from those of single link modules, and that the reported temporal co-expression of cartilage link protein and of neurocan in developing brain implicates the possibility of a cooperative function of these molecules.

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Crossref · 10.1016/j.matbio.2003.11.007

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Authors
Rauch, U., Hirakawa, S., Oohashi, T., Kappler, J., & Roos, G.
Affiliations
  • Lund University (SE)
  • Okayama University (JP)
  • University of Bonn (DE)
Corresponding author
Rauch, Uwe
Venue
Matrix Biology
Publisher
Elsevier BV
Published
2004-02
Volume
22
Issue
8
Pages
629-639
ISSN
0945-053X (ISSN-L)
OpenAlex
W1963481111
Cited by
42
References
34
Citations by year
2024: 3 · 2023: 1 · 2022: 1 · 2020: 1 · 2019: 1 · 2018: 1 · 2017: 2 · 2016: 1 · 2015: 3 · 2014: 1 · 2012: 2
FWCI
1.78
Type
journal article
Language
en
Open access
closed
Locations
  • Matrix Biology (publishedVersion)
  • PubMed (publishedVersion)
  • Lund University Publications (Lund University) (submittedVersion)
Funders
  • Deutsche Forschungsgemeinschaft
  • Greta och Johan Kocks stiftelser
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Proteoglycans and glycosaminoglycans research
  • Health Sciences › Medicine › Rheumatology › Osteoarthritis Treatment and Mechanisms
  • Health Sciences › Medicine › Rheumatology › Bone and Dental Protein Studies
Keywords
neurocan, hyaluronan binding, hyaluronan-binding domain, CD44, TSG-6, chondroitin sulfate, Link module, extracellular matrix, brain development, salt effects
MeSH terms
Proteoglycan Link Protein, Alanine, Alkaline Phosphatase, Amino Acid Sequence, Animals, Cell Line, Humans, Hyaluronic Acid, Molecular Sequence Data, Nerve Tissue Proteins, Protein Binding, Chondroitin Sulfate Proteoglycans, Proteoglycans, Recombinant Fusion Proteins, Cell Adhesion Molecules, Extracellular Matrix Proteins, Sequence Alignment, Culture Media, Conditioned, Point Mutation, Protein Structure, Tertiary, Hyaluronan Receptors, Lectins, C-Type, Mice, Rats, Neurocan

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