Difference in the Sizes of the Mouse andFugu Surfeit Genes (Including Intron Sizes) and the Amino Acid Homology Between their Predicted Protein Products
| Gene | Range of intron size difference between Fugu and mouse | Difference in gene size between Fugu and mouse | Percent amino acids identical between Fuguand mouse | Percent amino acids similar between Fuguand mouse |
| Surf-1 | 2.4× increase to a 6.4× reduction | Fugu 1.3× smaller than mouse | 72.5 | 83.8 |
| Surf-2 | 1.5× increase to a 7× reduction | Fugu 1.7× smaller than mouse | 42.3 | 61.3 |
| Surf-3 | 4.6× increase to a 2× reduction | Fugu 1.1× larger than mouse | 91.7 | 95.1 |
| Surf-4 | 7× reduction for all introns | Fugu 7.0× smaller than mouse | 90.0 | 94.8 |
| Surf-5 | 2× to 7× reduction | Fugu 3.1× smaller than mouse | 86.4 | 92.9 |
| Surf-6 | 3.5× to 6× reduction | Fugu 2.5× smaller than mouse | 46.6 | 65.1 |