Primary structure of a visual pigment in bullfrog green rods

FEBS Letters

Tokunaga, Fumio²  Takahashi, Yusuke¹  Taniguchi, Yuki²  Hisatomi, Osamu²  Tsukahara, Yasuo¹ 

[1] Graduate School of Information Science, Tohoku University, Sendai, Miyagi 980-8577, Japan;Department of Earth and Space Science, Graduate School of Science, Osaka University, Machikaneyama-chyo 1-1, Toyonaka, Osaka 560-0043, Japan

关键词: Visual pigment;    Cloning;    Immunohistochemistry;    Green rod;    Bullfrog (Rana catesbeiana);   

DOI  :  10.1016/S0014-5793(99)00209-4

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

In frog retina there are special rod photoreceptor cells (‘green rods’) with physiological properties similar to those of typical vertebrate rods (‘red rods’). A cDNA fragment encoding the putative green rod visual pigment was isolated from a retinal cDNA library of the bullfrog, Rana catesbeiana. Its deduced amino acid sequence has more than 65% identity with those of blue-sensitive cone pigments such as chicken blue and goldfish blue. Antisera raised against its C-terminal amino acid sequence recognized green rods. It is concluded that bullfrog green rods contain a visual pigment which is closely related to the blue-sensitive cone pigments of other non-mammalian vertebrates.

【 授权许可】

Unknown