RPS6KB1 and diffuse large B-cell lymphoma: In addition, the IHC demonstrated that the anti-p70S6K 240/244 antibody showed much higher levels than the anti-p70S6K-235/236 antibody indicating the 240/244 240/244 epitope is a superior surrogate marker for activation of this pathway in AR-DLBCL with 82–100% positivity in AR-DLBCL.