The Bacillus subtilis yaaH gene is transcribed by SigE RNA polymerase during sporulation, and its product is involved in germination of spores

The expression of 21 unique genes found in the region from danA to abrB of the Bacillus subtilis chromosome was examined. One of the genes, yaaH, had a predicted promoter sequence conserved among SigE-dependent genes. Research findings showed that yaaH is a novel gene encoding a spore protein produced in the mother cell compartment from T2 of sporulation and that it is needed for the L-alanine-stimulated germination pathway.