BCL2 and diffuse large B-cell lymphoma: Mcl-1 and Bcl-XL (encoded by the BCL2L1 gene) transcript levels were highest in the «BN2» genetic subtype (Fig. 3b), which had shown the lowest Bcl-2 transcript levels (Fig. 2c), indicating that the genetic subtypes of DLBCL rely on different anti-apoptotic Bcl-2 family members.