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Structural basis for interactions between tenascins and lectican C-type lectin domains: evidence for a crosslinking role for tenascins.

Lundell, Anna ; Olin, Anders LU ; Mörgelin, Matthias LU ; Al-Karadaghi, Salam LU ; Aspberg, Anders LU orcid and Logan, Derek LU orcid (2004) In Structure 12(8). p.1495-1506
Abstract
The C-terminal G3 domains of lecticans mediate crosslinking to diverse extracellular matrix (ECM) proteins during ECM assembly, through their C-type lectin (CLD) subdomains. The structure of the rat aggrecan CLD in a Ca(2+)-dependent complex with fibronectin type III repeats 3-5 of rat tenascin-R provides detailed support for such crosslinking. The CLD loops bind Ca2+ like other CLDs, but no carbohydrate binding is observed or possible. This is thus the first example of a direct Ca(2+)-dependent protein-protein interaction of a CLD. Surprisingly, tenascin-R does not coordinate the Ca2+ ions directly. Electron microscopy confirms that full-length tenascin-R and tenascin-C crosslink hyaluronan-aggrecan complexes. The results are significant... (More)
The C-terminal G3 domains of lecticans mediate crosslinking to diverse extracellular matrix (ECM) proteins during ECM assembly, through their C-type lectin (CLD) subdomains. The structure of the rat aggrecan CLD in a Ca(2+)-dependent complex with fibronectin type III repeats 3-5 of rat tenascin-R provides detailed support for such crosslinking. The CLD loops bind Ca2+ like other CLDs, but no carbohydrate binding is observed or possible. This is thus the first example of a direct Ca(2+)-dependent protein-protein interaction of a CLD. Surprisingly, tenascin-R does not coordinate the Ca2+ ions directly. Electron microscopy confirms that full-length tenascin-R and tenascin-C crosslink hyaluronan-aggrecan complexes. The results are significant for the binding of all lectican CLDs to tenascin-R and tenascin-C. Comparison of the protein interaction surface with that of P-selectin in complex with the PGSL-1 peptide suggests that direct protein-protein interactions of Ca(2+)-binding CLDs may be more widespread than previously appreciated. (Less)
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Structure
volume
12
issue
8
pages
1495 - 1506
publisher
Cell Press
external identifiers
  • pmid:15296743
  • wos:000223394200020
  • scopus:4143100146
ISSN
0969-2126
DOI
10.1016/j.str.2004.05.021
language
English
LU publication?
yes
id
fc44b6b2-f4bc-4050-8906-e636f7a2743a (old id 126816)
alternative location
http://www.ncbi.nlm.nih.gov/sites/entrez?cmd=Retrieve&db=PubMed&list_uids=15296743&dopt=Abstract
date added to LUP
2016-04-01 11:48:41
date last changed
2022-04-20 22:08:58
@article{fc44b6b2-f4bc-4050-8906-e636f7a2743a,
  abstract     = {{The C-terminal G3 domains of lecticans mediate crosslinking to diverse extracellular matrix (ECM) proteins during ECM assembly, through their C-type lectin (CLD) subdomains. The structure of the rat aggrecan CLD in a Ca(2+)-dependent complex with fibronectin type III repeats 3-5 of rat tenascin-R provides detailed support for such crosslinking. The CLD loops bind Ca2+ like other CLDs, but no carbohydrate binding is observed or possible. This is thus the first example of a direct Ca(2+)-dependent protein-protein interaction of a CLD. Surprisingly, tenascin-R does not coordinate the Ca2+ ions directly. Electron microscopy confirms that full-length tenascin-R and tenascin-C crosslink hyaluronan-aggrecan complexes. The results are significant for the binding of all lectican CLDs to tenascin-R and tenascin-C. Comparison of the protein interaction surface with that of P-selectin in complex with the PGSL-1 peptide suggests that direct protein-protein interactions of Ca(2+)-binding CLDs may be more widespread than previously appreciated.}},
  author       = {{Lundell, Anna and Olin, Anders and Mörgelin, Matthias and Al-Karadaghi, Salam and Aspberg, Anders and Logan, Derek}},
  issn         = {{0969-2126}},
  language     = {{eng}},
  number       = {{8}},
  pages        = {{1495--1506}},
  publisher    = {{Cell Press}},
  series       = {{Structure}},
  title        = {{Structural basis for interactions between tenascins and lectican C-type lectin domains: evidence for a crosslinking role for tenascins.}},
  url          = {{http://dx.doi.org/10.1016/j.str.2004.05.021}},
  doi          = {{10.1016/j.str.2004.05.021}},
  volume       = {{12}},
  year         = {{2004}},
}