Similar to B-ALL, genetic aberrations in Pim-1 gene locus have been found in T-ALL and T-LBL patients, t(6;7)(p21;q34), producing, TCRβ-PIM1 (T-cell receptor beta locus/PIM1), whereby the TCRβ enhancer was found juxtaposed to the 5’UTR (untranslated region) of the Pim-1 gene [105–108]. Here, PIM1 is linked to acute lymphoblastic leukemia.