Fig. 7.

The region-specific and cell-specific localization of rat GLB1L4 in the rat epididymis. A) The regional expression pattern of GLB1L4 in the whole epididymis of a 120-day-old rat. Bar = 2 mm. B) Magnified photographs for individual fields of A: the initial segment (a), the proximal caput (b), the caput (c), the corpus (d), the distal corpus (e), and the cauda (f). Bars = 50 μm. C) Immunofluorescence detection of GLB1L4 (a, FITC labeled), ATP6E (b, rhodamine labeled for clear cells), and their colocalization (c). Bars = 20 μm. D) Immunofluorescence detection of GLB1L4 (a and c) and HE staining (b and d) of the same section, showing that the narrow cell (large arrows), halo cell (arrowheads), and basal cell (small arrows) are not reactive. Bars = 50 μm.