Figure 6From: Histone H4 acetylation by immunohistochemistry and prognosis in newly diagnosed adult acute lymphoblastic leukemia (ALL) patients Histone H4 Acetylation in ALL Patient Samples. A patient with high levels of histone acetylation (Acetyl-histone H4, original magnification × 400). Olympus BX50 microscope, 100×/1.25 Olympus oil objective, Olympus DP71 camera.Back to article page