TABLE 1.

Relative mitogenic activity of FGF subfamilies

FGF receptor	Relative mitogenic activity ± S.D.
	FGF-1	FGF7 subfamily			FGF8 subfamily			FGF9 subfamily			FGF19 subfamily (×103)
		FGF7	FGF10	FGF22	FGF8	FGF17	FGF18	FGF9	FGF16	FGF20	FGF19	FGF21	FGF23
1c	100 ± 5	14.2 ± 4.1	12.5 ± 2.5	10.2 ± 1.7	57.5 ± 3.2	22.7 ± 0.3	4.7 ± 0.4	12.5 ± 1.4	4.3 ± 0.3	28.1 ± 4.0	123 ± 5.7	34 ± 3.0	23 ± 2.7
2c	100 ± 3	10.4 ± 4.0	6.1 ± 1.7	7.1 ± 1.1	91.6 ± 8.9	27.1 ± 9.5	28.9 ± 4.7	57.2 ± 5.4	32.5 ± 3.5	68.4 ± 2.8	238 ± 11.5	86 ± 4.7	89 ± 10.5
3c	100 ± 6	3.3 ± 1.4	0.8 ± 0.9	1.0 ± 0.5	209 ± 6	111 ± 5	77.7 ± 3.4	90.4 ± 6.0	32.4 ± 6.8	89.5 ± 7.3	140 ± 11.1	23 ± 02.3	43 ± 5.5
1b	100 ± 4	8.0 ± 1.5	39.4 ± 1.3	40.3 ± 1.6	5.3 ± 0.4	6.0 ± 2.2	6.3 ± 1.1	7.3 ± 1.0	6.5 ± 1.1	7.3 ± 0.9	12 ± 0.5	19 ± 3.4	11 ± 2.4
2b	100 ± 5	168 ± 6	217 ± 1	232 ± 3	5.9 ± 1.4	6.3 ± 0.6	7.8 ± 1.8	2.9 ± 0.4	1.8 ± 0.5	12.3 ± 0.7	61 ± 6.9	83 ± 5.4	66 ± 2.7
3b	100 ± 4	6.7 ± 1.8	6.0 ± 0.5	5.3 ± 0.7	18.6 ± 6.3	10.7 ± 2.7	12.5 ± 2.0	42.7 ± 2.9	13 ± 2.6	44.3 ± 1.5	20 ± 1.7	26 ± 1.5	21 ± 0.8
4Δ	100 ± 4	17.8 ± 0.5	11.5 ± 0.5	12.5 ± 0.9	102 ± 0.4	85.5 ± 1.1	52.8 ± 1.7	10.1 ± 0.1	9.9 ± 0.3	26.6 ± 0.9	410 ± 27.7	128 ± 9.6	222 ± 11.9