A cryptochrome-based photosensory system in the siliceous sponge Suberites domuncula (Demospongiae)
Article first published online: 1 FEB 2010
DOI: 10.1111/j.1742-4658.2009.07552.x
© 2010 The Authors Journal compilation © 2010 FEBS
Additional Information
How to Cite
Müller, W. E. G., Wang, X., Schröder, H. C., Korzhev, M., Grebenjuk, V. A., Markl, J. S., Jochum, K. P., Pisignano, D. and Wiens, M. (2010), A cryptochrome-based photosensory system in the siliceous sponge Suberites domuncula (Demospongiae). FEBS Journal, 277: 1182–1201. doi: 10.1111/j.1742-4658.2009.07552.x
Publication History
- Issue published online: 5 FEB 2010
- Article first published online: 1 FEB 2010
- (Received 19 September 2009, revised 8 November 2009, accepted 17 December 2009)
- Abstract
- Article
- References
- Cited By
Keywords:
- optical waveguide;
- photosensor;
- Porifera;
- sponges;
- Suberites domuncula
Based on the light-reactive behavior of siliceous sponges, their intriguing quartz glass-based spicular system and the existence of a light-generating luciferase [Müller WEG et al. (2009) Cell Mol Life Sci 66, 537–552], a protein potentially involved in light reception has been identified, cloned and recombinantly expressed from the demosponge Suberites domuncula. Its sequence displays two domains characteristic of cryptochrome, the N-terminal photolyase-related region and the C-terminal FAD-binding domain. The expression level of S. domuncula cryptochrome depends on animal’s exposure to light and is highest in tissue regions rich in siliceous spicules; in the dark, no cryptochrome transcripts/translational products are seen. From the experimental data, it is proposed that sponges might employ a luciferase-like protein, the spicular system and a cryptochrome as the light source, optical waveguide and photosensor, respectively.

1742-4658/asset/olbannerleft.gif?v=1&s=9011db155cccc04ee73e143039b3ec555aa8d349)
1742-4658/asset/olbannerright.gif?v=1&s=8ef64c2fc7142c262292a103cebc627d9bc4459b)
