Round-Spotted Pufferfish (Tetraodon fluviatilis) snf5 Gene Is Oriented in a Tail-to-Tail Manner With the set Gene Which Encodes an Inhibitor of Protein Phosphatase 2A
1998
The round-spotted pufferfish Tetraodon fluviatilis has a genome size of 380 Mb which is slightly smaller than that of another pufferfish Fugu rubripes rubripes (Fugu). Due to its compact genome and small introns, Fugu has been introduced as a model for genome studies. Recently, the round-spotted pufferfish has also been proposed as a new model for genome studies because of the ease in obtaining material and high-sequence homology to that of Fugu. In this study, we have cloned and characterized the snf5 and set genes from the round-spotted pufferfish. The snf5 gene is composed of 9 exons spanning about 2.9 kb whereas the set gene consists of 8 exons spanning about 2.7 kb. They are linked in a tail-to-tail manner with an intergenic region of about 6.5 kb. So far, the genomic structures of human snf5 and set genes are unknown. Based on our data, the pufferfish SNF5 and SET display high amino acid sequence identity (>90%) with the respective human genes. By primer extension and sequence analysis, we found tha...
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