LBX1 and ocular melanoma: Transcriptional regulators expressed at a higher level in LSC motor neurons included 17 of the 39 homeobox (Hox) genes which operate distinct genetic programs along the anterior/posterior axis (Supplementary table 3), and MALAT1, a non-coding RNA recently identified as a principle binding target of TDP43, and thought to play a role in the recruitment of splicing factors [55], which is 8.7-fold upregulated in LSC motor neurons relative to OM neurons (q value <1.0E−17).