SMLM of αABD clusters. A431 cells expressing Dn-αABD (αABD), its point mutant Dn-αABD-I792A (I792A), or Dn-αABD after a 10-min treatment with Latrunculin A (LnA). The corresponding heat maps of molecular cluster densities are shown at the bottom with the heat bar given in the right corner. The boxed regions are magnified in the insets.