Table 3.
MICs of penicillin and tetracycline for N. gonorrhoeae isolates
| Site mutations* | Serotypes | Cases (n) | MICs (mg/L) | |
|---|---|---|---|---|
| Penicillin | Tetracycline | |||
| G120K/A121D | IB3 | 56 | 2-4 | 2-8 |
| IB3/6 | 27 | 2-4 | 2-8 | |
| IB3/6-IB2 | 44 | 2-4 | 2-8 | |
| IB2-IB4-IB2 | 8 | 2-4 | 2-4 | |
| G120K/A121G | IB3/6 | 19 | 2-4 | 2-8 |
| G120N/A121D | IB3/6-IB2 | 9 | 2 | 2-4 |
| G120D | IB4 | 25 | 2-4 | 2-8 |
| G120K | IB3/6-IB2 | 9 | 2-4 | 2-8 |
| G120N/A121 and N122 deletion | IB3/6-IB2 | 15 | 4-8 | 4-16 |
| G120G/A121A | IB3/6 | 3 | 0.12 | 0.25 |
| IB3 | 2 | 0.25 | 0.25 | |
| D120D/G121G | IA6 | 87 | 0.06-0.5 | 0.06-0.5 |
| D120G/G121G | IA6 | 11 | 0.12-0.25 | 0.12-1 |
*: G, K, A, D and N indicate glycine, lysine, aspartic acid and asparagine, respectively.