Background and Aim. Sotos syndrome 2 (MIM #614753). known also as Malan syndrome. is caused by heterozygous mutations/deletions of the NFIX gene located on chromosome 19p13. https://www.roneverhart.com/HGST-Ultrastar-7K6000-HUS726040ALS214-4TB-7-2K-RPM-SAS-12Gb-s-512n-128MB-3-5-SE-Hard-Drive/