Table 1 Biochemical parameters of vertebrate PGI proteins.
| Â | Biochemical characters1 | No. of hydrophilic charged residues | ||||
|---|---|---|---|---|---|---|
| Â | No. of amino acids | Hydro-phobicity (GRAVY) | Isoelectric point (pI) | Positively charged (Arg+Lys) | Negatively charged (Asp+Glu) | Difference2 |
Teleost fish PGI-1 | Â | Â | Â | Â | Â | Â |
   Fugu-1 | 552 | -0.261 | 6.33 | 58 | 64 | -6 |
   Mullet-1 | 553 | -0.282 | 6.30 | 57 | 63 | -6 |
   Smelt-1 | 553 | -0.284 | 6.21 | 54 | 62 | -8 |
   Zebrafish-1 | 553 | -0.265 | 6.45 | 53 | 58 | -5 |
   Eel-1 | 553 | -0.359 | 6.36 | 57 | 63 | -6 |
   Arowana-1 | 553 | -0.277 | 6.22 | 56 | 64 | -8 |
Teleost fish PGI-2 | Â | Â | Â | Â | Â | Â |
   Fugu-2 | 553 | -0.294 | 6.96 | 59 | 61 | -2 |
   Mullet-2 | 553 | -0.265 | 7.85 | 61 | 60 | 1 |
   Smelt-2 | 552 | -0.337 | 7.36 | 64 | 64 | 0 |
   Zebrafish-2 | 553 | -0.304 | 6.82 | 59 | 61 | -2 |
   Eel-2 | 553 | -0.285 | 6.75 | 58 | 61 | -3 |
   Arowana-2 | 553 | -0.280 | 7.07 | 63 | 64 | -1 |
Non-teleost fish PGI | Â | Â | Â | Â | Â | Â |
   Sturgeon | 555 | -0.356 | 6.82 | 59 | 61 | -2 |
   Gar | 555 | -0.308 | 6.83 | 59 | 61 | -2 |
   Amia | 555 | -0.355 | 6.62 | 60 | 63 | -3 |
   Bichir | 556 | -0.278 | 6.84 | 58 | 60 | -2 |
Tetrapod PGI | Â | Â | Â | Â | Â | Â |
   Toad | 553 | -0.226 | 7.68 | 59 | 58 | 1 |
   Snake | 553 | -0.237 | 8.72 | 62 | 57 | 5 |
   Chicken | 553 | -0.255 | 8.34 | 64 | 61 | 3 |
   Mouse | 558 | -0.294 | 7.75 | 61 | 60 | 1 |
   Pig | 558 | -0.340 | 7.79 | 62 | 61 | 1 |
   Rat | 558 | -0.285 | 7.38 | 61 | 61 | 0 |
   Hamster | 558 | -0.322 | 7.08 | 59 | 60 | -1 |
   Rabbit | 558 | -0.292 | 7.11 | 58 | 59 | -1 |
   Human | 558 | -0.344 | 8.42 | 62 | 59 | 3 |
Jawless fish PGI | Â | Â | Â | Â | Â | Â |
   Hagfish | 554 | -0.238 | 7.82 | 57 | 56 | 1 |