10x Genome sequencing detected in patients P1 and P2 the second most common IGH translocation in MM, t(14;16)(q32;q23), involving the transcription factor MAF. Patients P3 and P4 had IGH translocations t(4;14)(p16;q32), involving FGFR3 and NSD2, with the remaining three patients (P5–P7) having no detectable translocation involving any of the Ig loci (Supplemental Table S5). This evidence concerns the gene MAF and Miyoshi myopathy.