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Fig. 4. Confocal microscopic and western blot analyses of Xenopus oocytes
injected with turtle UT cRNA. (A) Immunofluorescence images for turtle UT
protein in turtle UT cRNA-injected oocytes using affinity-purified turtle UT
antibody. Immunoreactive proteins were detected in the plasma membrane
(arrowheads) of turtle cRNA-injected oocytes (a). The protein was not detected
in the plasma membrane (arrowheads) of water-injected oocytes (b). Scale bars,
500 µm. (B) Western blot analysis of the membrane fractions prepared from
the turtle UT-injected Xenopus oocytes, and those from the desiccated
turtle kidney, heart and liver using the anti-turtle UT antibody. An
immunoreactive band was detected at an approximately 58 kDa in extract of the
UT-injected oocytes (lane 1) and no band was observed in the water-injected
oocytes (lane 2). The 58 kDa band was detected in extract of the kidney (lane
3). No band was observed in either heart (lane 4) or liver (lane 5).