Bivalent marking of loci encoding lineage specific transcription factors in ES cells is thought to prepare these genes for rapid activation of transcription once the pluripotency network is extinguished [4]. (journals.plos.org)
Osmotic stress induces rapid activation of a salicylic acid - induced protein kinase and a homolog of protein kinase ASK1 in tobacco cells. (btiscience.org)
The research uncovers some of the mechanisms that drive the rapid activation of neutrophils, says immunologist Andrew Gelman of Washington University School of Medicine in St. Louis. (sciencenews.org)