ABCC5 is described as differentially spliced in SF3B1 mutated breast cancer (Maguire et al., 2015), and MRPS21 is described as a gene, whose upregulation is associated with poor response to azacytidine in MDS and related cancers (Belickova et al., 2016). The gene discussed is MRPS21; the disease is myelodysplastic syndrome.