Dominant Negative (DN)-RhoA (plasmid 15901) and constitutively active (CA)-RhoA (plasmid 15900) (Nobes & Hall 1999 (link)) were obtained from Addgene (Cambridge, MA). pTagRFP-N was acquired from Evrogen (Moscow, Russia). pEGFP-Actin was obtained from Clontech (Mountain View, CA).