UTX mutations in human T-ALL. (A) DNA sequencing chromatogram showing a UTX mutation in the gDNA of a male primary T-ALL patient sample. The mutation is absent in remission material of the same patient. (B) Graphical representation of the localization of genetic lesions in the UTX protein structure. In-frame deletion/insertion mutations are depicted in orange circles and frameshift mutations in blue circles. (C) Genotyping and allelic expression analysis of SNP rs181547731 in gDNA and cDNA derived from female T-ALL lymphoblasts. (D) Graphical representation of the different mutations (dark orange rectangles) and deletions (light orange rectangles) present in a set of T-ALL oncogenes and tumor suppressor genes in 35 primary T-ALL patient samples. The different T-ALL subgroups include TAL-LMO, TLX3, TLX1, HOXA, and patients for whom the subgroup is unknown. The age subgroups include children (age ≤15 years; dark red rectangles) and adults (age >15 years; light red rectangles). Male and female T-ALL patient samples are presented in dark blue and light blue rectangles, respectively. JmjC, Jumonji C; TPR, tetratricopeptide repeat.