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. Author manuscript; available in PMC: 2010 Oct 4.
Published in final edited form as: J Biol Chem. 2006 Oct 24;281(51):39507–39516. doi: 10.1074/jbc.M608551200

TABLE 2. Binding of N-terminal fragments of collagen XI α1 chain to heparin.

Heparin binding was determined by affinity chromatography in 0.05m Tris-HCl, pH 7.4. Binding strength is denoted by NaCl concentration required for displacement of protein from heparin agarose column.

Isoform/Fragment [NaCl] Conductivity
m mS/cm
Collagen XI triple helix 0.449 33.0
α1(XI) NTD Npp 0.404 29.7
α1(XI) NTD (Npp[p6b7]) 0.847 62.3
α1(XI) NTD (Npp[p7]) 0.309 22.7
α1(XI) NTD (Npp[p6a78]) 0.253 18.6