The FtsH Protein Accumulates at the Septum of Bacillus subtilis during Cell Division and Sporulation
AUTOR(ES)
Wehrl, Wolfgang
FONTE
American Society for Microbiology
RESUMO
The ftsH gene encodes an ATP- and Zn2+-dependent metalloprotease which is anchored to the cytoplasmic membrane via two transmembrane segments in such a way that the very short amino- and the long carboxy termini are exposed to the cytoplasm. Deletion of the ftsH gene in Bacillus subtilis results in a pleiotropic phenotype such as filamentous growth. This observation prompted us to ask whether ftsH is involved in cell division. A translational fusion was constructed between the complete coding region of ftsH and gfp+ the latter carrying five point mutations to obtain enhanced fluorescence. We detected that the FtsH protein accumulates in the midcell septum of dividing cells, and during sporulation first in the asymmetrically located septa of sporulating cells and later in the membrane which engulfs the forespore. These observations revealed a new function of FtsH.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=94566Documentos Relacionados
- Regulation of transcription of the cell division gene ftsA during sporulation of Bacillus subtilis.
- The ftsH gene of Bacillus subtilis is transiently induced after osmotic and temperature upshift.
- Impaired cell division and sporulation of a Bacillus subtilis strain with the ftsA gene deleted.
- Characterization of a cell division gene from Bacillus subtilis that is required for vegetative and sporulation septum formation.
- Characterization of a Cell Division Gene from Bacillus subtilis That Is Required for Vegetative and Sporulation Septum Formation
