Fig. 1

Immunohistochemistry results for 4 ovarian cancer samples harboring TP53 mutations. a: the patient with a TP53 nonsense mutation exhibited negative P53 staining; b: the patient with a low abundance (5.7%) of TP53 frameshift mutation exhibited faint P53 staining; c: the patient with a TP53 frameshift mutation exhibited moderate P53 staining; d: the patient with a TP53 missense mutation exhibited strong P53 staining. (×400)