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Fig. 3. KSR immunohistochemical staining of adult mouse tissues. A, B-KSR1 immunostaining in the cerebral cortex showing expression in pyramidal neurones. PN, pyramidal neurones. Bar, 100 µm. B, B-KSR1 and KSR1 immunostaining in the cerebellum showing expression in Purkinje cells. PC, Purkinje cells. Bar, 100 µm. C, immunostaining of KSR1 and B-KSR1 in ovary. F, ovarian follicle. Bar, 200 µm. D, KSR1 immunostaining in lung at lower magnification (left panel; bar, 50 µm) and higher magnification (right panel; bar, 25 µm). A, alveolus; AS, alveolar sac; AC, alveolar cell. E, KSR1 immunostaining in testis at lower magnification (left panel; bar, 50 µm) and higher magnification (right panel; bar, 25 µm). ST, seminiferous tubule; IC, interstitial cells; Sp, developing spermatocytes. Individual arrows, cells in testis and lung expressing KSR in the periplasma membrane region.