Table 3 NCX Intron Density
From: Gene Structure Evolution of the Na+-Ca2+ Exchanger (NCX) Family
| Organism | NCX1a | NCX1b | NCX2a | NCX2b | NCX3 | NCX4a | NCX4b |
|---|---|---|---|---|---|---|---|
| H. sapiens | 1.32 | 2.17 | 1.38 | ||||
| C. familiaris | 1.36 | 2.67 | 1.38 | ||||
| M. musculus | 1.33 | 2.53 | 1.38 | ||||
| R. novergicus | 1.33 | 2.17 | 1.38 | ||||
| G. gallus | 1.30 | 1.44 | |||||
| A. carolinensis | 1.44 | 1.40 | 1.37 | 1.00 | |||
| X. tropicalis | 1.33 | 1.56 | 1.39 | 1.48 | |||
| D. rerio | 1.36 | 3.10 | 3.14 | 1.42 | 1.77 | 2.16 | |
| T. nigroviiridis | 2.82 | 1.66 | 3.42 | 1.45 | 2.15 | 4.66 | |
| T. rubripes | 2.72 | 1.55 | 3.86 | 3.32 | 1.45 | 1.81 | 4.76 |
| O. latipes | 2.84 | 1.40 | 3.75 | 3.35 | 1.45 | 1.76 | 4.43 |
| G. aculaeatus | 1.45 | 4.12 | 3.33 | 1.45 | 1.76 | 4.35 |