... ganglion cell function as well as photoreceptor homeostasis. In particular work from flies and zebrafish has highlighted the role of the E3 ligase enzyme family, Seven in Absentia Homologue (Siah) during these events. In this review, we summarize the current understanding of UPS activity during Drosophila...

... and freeze-trapped intermediate states reveal unexpected changes in the chromophore during Pfr→Pr photoconversion. These, together with our efforts to solve the three-dimensional structure of a complete phytochrome molecule are also described. linear tetrapyrrole photoreceptor phytochrome sensory...

... summarizes our current understanding of the general and molecular principles of entrainment in the model organism Neurospora crassa , a simple eukaryote that has one of the best-studied circadian systems and light-signalling pathways. circadian clock entrainment Neurospora crassa photoreceptor...

... are required for the synthesis of the chromophore of the phytochrome family of photoreceptors. There are four HO genes in the Arabidopsis genome. Analysis of a mutant deficient in HO1 (the hy1 mutant) has demonstrated that this plastid-localized protein is the major HO in the phytochrome chromophore synthesis...