FIGURE 4. HA FRAGMENT.
Purified HA fragments but not HMW-HAinduced NF-KB DNA binding activity in MH-S cells. (A) Densitometric scanning demonstrating the molecular weights of HMW-HA (top), and purified HA fragments (bottom). (B) Electrophoretic mobility shift assay of nuclear extracts prepared from MH-S cell stimulated for 2 h with either serum-free media (unstim), HMW-HA, HA-fragment, or LPS. HA fragments induced NF-KB DNA binding activity. From Noble et al., J. Exp. Med. 183:2373–2378 (1996), with permission.