We examined the effect of ALK signaling on amino acid transport systems in our previous RNA-seq data derived from Alk-F1178S;Th-MYCN, Rosa26_Alkal2;Th-MYCN or Th-MYCN NB tumors [54] and NB cells treated with ALKAL2 or/and ALK inhibitor [38, 54]. This evidence concerns the gene ALKAL2 and neuroblastoma.