Surprisingly, the IGKV1-5*03/IGKJ3*01 sequence from different cases exhibited 98–100% homology, while the IGKV1-NL1*01/IGJ5*01 sequence from either different AML patients or AML cells lines exhibited 100% homology (Supplementary Figure 1). This evidence concerns the gene IGKJ3 and acute myeloid leukemia.