| |
Fig. 5. XAA2 expression in the early proximal segment. In stage 28 embryos, low-level expression of XAA2 is observed in the future distal segment. This expression declines and is not detectable by stage 32. At stage 32, strong expression is activated in the early proximal tubule (C, D) and remains restricted to this segment until at least stage 40. Embryonic stages are shown at the lower left of panels A–L, M and P. The blue pronephric region in the FCIS panels shows the site of high level expression. |
