... plextrin homology (PH) domains, it contains an N-terminally locatedcalponin homology (CH) domain, an SH3 domain, a GIT binding domain, and aC-terminally located leucine zipper that mediates the formation ... Lowe-syndromepatients, in addition to increased PI(4,5)P2levels, also had alterations in the actincytoskeleton, an increased sensitivity to actin depolymerizing agents, and mislocal-ization of the actin-binding ... 1998). Since then four additional mutations have been identified in MR patients. These include the R67C and the A365E mutations located in the p21-binding domain and in the kinase domain, respectively;...