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Attempted Identification Of The Calcium-Dependent Sodium Channel Gene In Paramecium Tetraurelia Using Rnai, Gwendolyn Kuzmishin
Attempted Identification Of The Calcium-Dependent Sodium Channel Gene In Paramecium Tetraurelia Using Rnai, Gwendolyn Kuzmishin
Senior Independent Study Theses
Ion channels play an important role in the swimming behavior of Paramecium tetraurelia. Electrophysiological experiments indicate that a calcium-dependent sodium channel exists in Paramecium, but a gene has not been identified for this channel. It is hypothesized that this channel evolved from a voltage-dependent sodium channel after a whole genome duplication event. In this paper, 13 candidate genes were identified from the Paramecium genome based on their similarity to a reference human voltage-dependent sodium channel. Bioinformatics analysis of the selectivity filter of these putative ion channel genes suggested that at least 8 of the candidate genes were sodium channels …