TABLE 2.
Main ISXax1 features compared to those of IS256 family membersa
| Feature | Value for:
|
|
|---|---|---|
| ISXax1 | IS256 family | |
| Size | 1,329 bp | 1,300 to 1,500 bp |
| No. of ORFs | 1 (408 aa) | 1 |
| Size of inverted terminal repeats (IRs) | 27 bp | 24 to 41 bp |
| Size of direct target repeats (DRs) | 8 bp | 8 or 9 bp |
| Conserved terminal base pair 5′ to 3′b | GG | G(g/a) |
a
Data are derived from IS Finder database (http://www-is.biotoul.fr/is.html).
b
Uppercase letters refer to mostly (and often) conserved bases. Lowercase letters separated by slashes indicate alternative conservation at that position.