title: Sequence analysis and expression of a blue-light photoreceptor gene, Le.phrA from the basidiomycetous mushroom Lentinula edodes.
abstract: We cloned and sequenced a photoreceptor gene (Le.phrA) from the basidiomycete Lentinula edodes. The product of Le.phrA, Le.PHRA (924 aa residues) contained a serine-rich region, an LOV domain and two PAS domains. It was clearly smaller than other fungal LOV domain-containing blue-light photoreceptors such as Coprinopsis cinerea Dst1 (1,175 aa), Neurospora crassa WC-1 (1,167 aa), and Cryptococcus neoformans WC-1 (1,141 aa). The Le.phrA gene was found to be transcribed at all stages of the fruiting-body formation of L. edodes, but it was most abundantly transcribed in the immature fruiting body. Fully-matured fruiting body also contained relatively large amounts of Le.phrA transcript. Although the transcript level was lower, preprimordial aggregated mycelial cells grown under a light environment contained larger amounts of the transcript than those grown under continuous darkness, suggesting a light-enhanced expression of the Le.phrA gene. Hymenophore-depleted pileus contained a markedly higher level of the transcript than the stipe.
authors.affiliation: Department of Life Science, Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology, Nagatsuta, Midori-ku, Yokohama 226-8501, Japan. sano.h.aa@m.titech.ac.jp
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Sano
authors.forename: Takatsugu
authors.initials: T
authors.lastname: Narikiyo
authors.forename: Shinya
authors.initials: S
authors.lastname: Kaneko
authors.forename: Takashi
authors.initials: T
authors.lastname: Yamazaki
authors.forename: Kazuo
authors.initials: K
authors.lastname: Shishido
mesh_terms: D000595:Amino Acid Sequence; D001483:Base Sequence; D003001:Cloning, Molecular; D003116:Color; D005656:Fungal Proteins / Q000737:chemistry / Q000235:genetics / Q000378:metabolism*; D015966:Gene Expression Regulation, Fungal; D008027:Light; D008969:Molecular Sequence Data; D017386:Sequence Homology, Amino Acid; D020942:Shiitake Mushrooms / Q000235:genetics / Q000254:growth & development / Q000378:metabolism*; D014158:Transcription, Genetic / Q000235:genetics