1. Lerner, M. R. Trends Neurosci. 17, 142–146 (1994).
2. Provencio, I., Jiang, G., De Grip, W. J., Hayes, W. P. & Rollag, M. D. Proc. Natl Acad. Sci. USA 95, 340–345 (1998).
3. Kojima, D.et al. J. Biol. Chem. 272, 22979–22982 (1997).
4. Gärtner, W. & Towner, P. Photochem. Photobiol. 62, 1–16 (1995).
5. Blackshaw, S. & Snyder, S. H. J. Neurosci. 17, 8083–8092 (1997).