CLK1 and esophageal squamous cell carcinoma: TCGA database was screened for RBPs differentially expressed in tumors versus normal samples, and a set of 7 RBPs (CLK1, DDX39A, EEF2, ELAC1, NKRF, POP7 and SMN1), most of which were related to overall survival of ESCC individuals, were obtained as prognostic model.