G Protein α Subunit Genes in Octopus Photoreceptor Cells

• DOI: 10.2108/zsj.17.711
• Publication Date: 2004-10-08T08:14:27Z
• Authors: Tatsuo Iwasa; Takanori Yanai; Masashi Nakagawa; Satoshi Kikkawa; Shuichi Obata; Jiro Usukura; Motoyuki Tsuda
• Keywords: octopus (software); Visual phototransduction; Northern blot

The G protein messages in Octopus vulgaris photoreceptor were isolated and characterized with molecular biological techniques. Four classes of α subunit cDNA from an octopus eye library: OvGαi, OvGαo, OvGαq OvGαs. Northern blot analysis tissues showed abundant expression the eye, specific OvGαo neural tissues. OvGαi was expressed all studied. In situ hybridization revealed that message almost cells. Based on these results, a possible phototransduction pathway visual cells is discussed.