今日はハエの系統交配の作業。うまく育ってないハエ系統もある。今日読んだ論文はコンネキシンと視覚受容の論文。
Gap junctions (GJs) are composed of proteins from two distinct families. In vertebrates, GJs are composed of connexins; a connexin hexamer on one cell lines up with a hexamer on an apposing cell to form the intracellular channel. In invertebrates, GJs are composed of an unrelated protein family, the innexins. Different connexins have distinct properties that make them largely non-interchangeable in the animal. Innexins are also a large family with high sequence homology, and some functional differences have been reported. The biological implication of innexin differences, such as their ability to substitute for one another in the animal, have not been explored.
Recently, we showed that GJ proteins are necessary for the development of normal neural transmission in the Drosophila visual system. Mutations in either of two Drosophila GJ genes (innexins), shak B and ogre, lead to a loss of transients in the ERG, which is indicative of a failure of the lamina to respond to retinal cell depolarization.Orge is required presynaptically and shakB postsynaptically. Both act during development.