Phototropin from Chlamydomonas reinhardtii is functional in Arabidopsis thaliana.

Phototropin, a plant blue light photoreceptor, mediates important blue light responses such as phototropism, chloroplast positioning and stomatal opening in higher plants. In Arabidopsis thaliana, two phototoropins, phototropin 1 and 2, are known. Recently, in the unicellular green alga, Chlamydomonas reinhardtii, a phototropin homolog was identified.

[Mycoplasma pneumoniae pneumonia with a tumorous shadow on chest radiography--a case report].

A 16-year-old woman was admitted with a 1-week history of increasing cough and fever. Chest radiography and computed tomography revealed a tumorous shadow in the right upper lung field. Serologic testing provided evidence of a Mycoplasma pneumoniae infection.

Photochemical properties of the flavin mononucleotide-binding domains of the phototropins from Arabidopsis, rice, and Chlamydomonas reinhardtii.

Phototropins (phot1 and phot2, formerly designated nph1 and npl1) are blue-light receptors that mediate phototropism, blue light-induced chloroplast relocation, and blue light-induced stomatal opening in Arabidopsis. Phototropins contain two light, oxygen, or voltage (LOV) domains at their N termini (LOV1 and LOV2), each a binding site for the chromophore flavin mononucleotide (FMN). Their C termini contain a serine/threonine protein kinase domain.