Table 3. Mitogenic assay of rabbit and human FGF-1 with 3T3 fibroblasts in the presence or absence of 10 U ml−1 heparin.
| EC50 (ng ml−1) | |||
|---|---|---|---|
| Protein | (−) Heparin | (+) Heparin | Heparin stimulation |
| Human FGF-1 | 58.4 ± 25.4 | 0.48 ± 0.08 | 122× |
| Rabbit FGF-1 | 654.1 ± 341.6 | 0.26 ± 0.05 | 2520× |