Gene | N° of isolates tested | N° of isolates with indicated genotype | Nucleotide change | Amino acid change | N° of mutated isolates according to INH resistance level | |
---|---|---|---|---|---|---|
 |  |  |  |  | Low level (0.2 μg/ml) | High level (1 μg/ml) |
katG | 44 INHR | 18 | 315AGC → ACC | Ser → Thr | 2 | 16 |
1 | 315AGC → AAC | Ser → Asn | 0 | 1 | ||
1 | Partial deletion | NA | 0 | 1 | ||
 | 24 | WT | NA | 0 | 0 | |
100 INHS | 0 | WT | NA | NA | NA | |
fabG1-inhA regulatory region | 44 INHR | 13 | -15C → T | NA | 10 | 3 |
5 | -47G → C | NA | 0 | 5 | ||
 | 26 | WT | NA | 0 | 0 | |
100 INHS | 24 | -47G → C | NA | NA | NA | |
 |  | 3 | -102C → T | NA | NA | NA |