Activity of Rhodobacter sphaeroides RpoHII, a second member of the heat shock sigma factor family.


We have identified a second RpoH homolog, RpoH(II), in the alpha-proteobacterium Rhodobacter sphaeroides. Primary amino acid sequence comparisons demonstrate that R. sphaeroides RpoH(II) belongs to a phylogenetically distinct group with RpoH orthologs from alpha-proteobacteria that contain two rpoH genes. Like its previously identified paralog, RpoH(I… (More)

7 Figures and Tables


  • Presentations referencing similar topics