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Fig. 2. Purification of tenascin-W. (A) Protein gels of purified tenascin-W (W) in comparison to tenascin-C (C) reveals that both proteins form high molecular weight disulphide-linked oligomers (arrow), as can be seen by their slow migration in the absence of reducing agent (-BME). Migration under reducing condition (+BME) reveals for tenascin-W a Mr of 180 kDa. An immunoblot with anti-tenascin-W antibody (anti-TNW) reveals that this antiserum specifically reacts with tenascin-W, but not with tenascin-C. (B) Electron microscopy after rotary shadowing of recombinant mouse tenascin-W reveals that it forms hexameric oligomers. Scale bar, 50 nm.





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