SLC3A2 has been reported to be present in complex with SLC7A5 and SLC7A11 [42–44], and in keeping with a functional relevance in NB, SLC3A2 and SLC7A5 are highly prognostic of poor outcome in the R2 dataset of NB (KOCAK dataset, n = 649) [4]. The gene discussed is SLC7A11; the disease is neuroblastoma.