Eukaryotes under a new light

The new phylogeny of eukaryotes.

Molecular phylogeny has been regarded as the ultimate tool for the reconstruction of relationships among eukaryotes-especially the different protist groups-given the difficulty in interpreting morphological data from an evolutionary point of view. In fact, the use of ribosomal RNA as a marker has provided the first well resolved eukaryotic phylogenies, leading to several important evolutionary ...

A New Step-based Photoreactor for Degradation of Acid Dye using N-TiO2-P25-coated Ceramic Foam under Visible Light

In the present study, a new step-based photoreactor was presented to investigate the degradation of Acid Red 73 under visible light irradiation. Four N-TiO2-coated alumina foams prepared by the modified sol-gel process were arranged in each step as photocatalyst. The experimental design methodology was employed to assess the interaction between the operational parameters in the step-...

New insights into polycistronic transcripts in eukaryotes.

In bacteria and archaea, many functionally related genes are organized into operons in order to be transcribed and translated simultaneously. Operons are rarely seen in eukaryotes except for the Trypanosome and nematode, in which they are first transcribed into polycistronic transcripts but then processed into individual mature mRNAs. Recently, several researchers described the findings of poly...

New ways of initiating translation in eukaryotes?

New Ways of Initiating Translation in Eukaryotes?

This letter to the editor is a response by a large number of investigators in the field of protein synthesis to the minireview published by Dr. Kozak in Molecular and Cellular Biology (9). This minireview attempts to create significant doubts regarding the published literature that we believe are unwarranted and to bolster Dr. Kozak’s own point of view regarding translation initiation. We there...