TUBB2B and lissencephaly spectrum disorders: Tubulinopathiestype ITUBA1A, TUBA3(associated to PMG, #611603) TUBB2B (associated to PMG, #610031) KATNB1 (associated to microcephaly, #616212)LIS1 (#607432, #247200) Isolated lissencephaly and Miller-Dieker syndrome (MDS), often accompanied with subcortical band heterotopia and/or PMGDCX (#300067) X-linkedlissencephaly and double cortex syndrome (subcortical band heterotopia, see below)ARX#300215 - X-linkedlissencephaly with agenesis ofcorpus callosum (XLAG)