Affinities of GR196429 and melatonin to compete for 2-[125I]-iodomelatonin binding to chicken tissues
| Compound | Chicken Retina | Chicken Tectum |
|---|---|---|
| Melatonin | 9.55 ± 0.04 | 8.98 ± 0.15 |
| GR196429 | 9.38 ± 0.14 | 8.79 ± 0.11 |
Values are pKi ± S.E.M. from duplicate determinations in at least three experiments. No slope values were significantly different from unity.