Table 2. Frequency of mutations associated with SLDs resistance within MDR MTB isolates.
ATB drug | Gene | Codon/Nucleotid Position | Substitution | Amino acid change | Number of isolates | Sub-total |
---|---|---|---|---|---|---|
FQs | gyrA | Codon 90 | GCG → GTG | Ala / Val | 14 | 25 |
Codon 94 | GAC → GCC | Asp / Ala | 4 | |||
GAC → GGC | Asp / Gly | 3 | ||||
GAC → CAC | Asp / His | 4 | ||||
gyrB | Codon 472 | GAC → CAC | Asp / His | 3 | 4 | |
Codon 472 | GAC → AAC | Asp / Asn | 1 | |||
Aminosides /cyclic peptides | rrs | N1401 | SNP A/G | – | 1 | 1 |
tlyA | Codon 89 | AAA → GAA | Lys / Glu | 1 | 1 | |
eis | – | – | – | – | – |