Table 2.
Location of ZP genes (Chromosome No.)*.
| Organism | ZP1 | ZP2 | ZP3 | ZP4 | ZPd | ZPax |
|---|---|---|---|---|---|---|
| Trout | x | x | (−)a | |||
| Frog | – | x | x | x | x | x |
| Chicken | 5 | 14 | 10 | 6 | 11 | 3 |
| Possum | – | x | x | x | ||
| Mouse | 19 | 7 | 5 | (13)b | ||
| Rat | 1 | 1 | 12 | 17 | ||
| Cow | (29)c | 25 | 25 | 28 | pseudod | |
| Pig | – | 3 | 3 | 14 | ||
| Dog | (18)c | 6 | 6 | 4 | ||
| Macacae | 14 | 20 | 3 | 1 | pseudod | |
| Chimpanzeef | 11 | 16 | 7 | 1 | pseudod | |
| Human | 11 | 16 | 7 | 1 | pseudod |
*
Taken from NCBI database.
x No information about location of ZP genes.
-Not found.
a
In some fish, e.g. gilthead seabream, a ZP2 homolog (ZPx) is present.
b
ZP4 is a pseudo-gene in mice.
c
ZP1 is a pseudo-gene in cows and dogs.
d
ZPax is a pseudo-gene in cows, macacas, chimpanzees, and humans.
e
Macaca mulatta.
f
Pan troglodytes.