Table 3.
Clinical strains of N. gonorrhoeae and their expression of XNG0663.
| Gonococcal Strain | Site of Isolation | Composition of poly-C tract | Composition of poly-T tract | Gene expression* |
| 25527 | Blood | CCCCTCC | (T)6 | ON |
| 25563 | Blood | CCCCTCC | (T)6 | ON |
| 26034 | Blood | CCCCTCC | (T)6 | OFF |
| 26241 | Blood | CCCCTCC | (T)6 | OFF |
| 26593 | Blood | CCCCTCC | (T)6 | ON |
| 25534 | Joint fluid | CCCCTCC | (T)6 | ON |
| 25562 | Joint fluid | CCCCTCC | (T)6 | ON |
| 26399 | Joint fluid | CCCCTCC | (T)7 | ON |
| 26775 | Joint fluid | CCCCTCC | (T)6 | ON |
| 27706 | GC | CCCCTCC | (T)6 | ON |
| 27833 | GC | CCCCTCC | (T)6 | ON |
| 27886 | GC | CCCCTCC | (T)6 | OFF |
| 27921 | GC | CCCCTCC | (T)6 | ON |
| 28197 | GC | CCCCTCC | (T)6 | ON |
| 28252 | GC | CCCCTCC | (T)6 | ON |
| 28386 | GC | CCCCTCC | (T)7 | ON |
* Gene expression also depends on the presence or absence of an adenine residue between the two tracts. Therefore strains with the same poly-T repeat can be in the open reading frame or be frame-shifted.