PTK7 and scoliosis: Moreover, many scoliosis association genes [66, 67], for example, TBX6 [68, 69], LBX1, GPR126 [70], PAX1 [71–73], POC5 [74], KIF6 [75], PTK7 [76, 77], FGF3 [78–80], SHP2 [81, 82], IFT88 [64, 83], IFT20 [83], Arl13b [83], and Yap [83], are found to be associated with cilium function so far (Table 3).