C9orf72 and frontotemporal dementia: Similarly, a recent ALS GWAS [15] found colocalization with PSP and corticobasal degeneration (CBD) at the MOBP/RPSA locus, with FTD at the UNC13A locus, with PD at the HLA and GAK loci, with AD at the TSPOAP1 locus, and with the motor neuron disease subtype of FTD at the C9orf72 locus.