Low temperature promotes annexin V expression in newt testis.
We examined the effect of low temperatures on annexin V expression in newt testis. When newts were transferred to a low temperature (12 degrees C), up-regulation of annexin V protein was observed in secondary spermatogonia. In primary spermatocytes, high levels of annexin V expression were observed at both 12 degrees C and 22 degrees C, but at 12 degrees C the protein was localized in part of the cytoplasm of primary spermatocytes. These results indicate that in newt testis annexin V is a cold-sensitive protein, suggesting the possibility that annexin V might have a cold stress-related function in newt germ cells.
Yamamoto
Takashi
T
Department of Mathematical and Life Sciences, Graduate School of Science, Hiroshima University, Japan. tybig@hiroshima-u.ac.jp
Yazawa
Takashi
T
Fujimoto
Kenta
K
Kitano
Takeshi
T
Abé
Shin-Ichi
S
D000818:Animals; D017304:Annexin A5 / Q000096:biosynthesis*; D003080:Cold Temperature; D003593:Cytoplasm / Q000502:physiology; D005786:Gene Expression Regulation; D008297:Male; D012455:Salamandridae / Q000502:physiology*; D013090:Spermatocytes / Q000502:physiology; D013091:Spermatogenesis / Q000502:physiology*; D013737:Testis / Q000502:physiology*
D017304:Annexin A5