TABLE 2 .
Aztreonam MICs and mutated resistance genes in clinical P. aeruginosa strains
| Patient identifier |
Aztreonam MIC (μg/ml) for isolate |
Mutation(s) in genea: |
|||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Susceptible isolate |
Increased- resistance isolate |
mexR | ftsI | clpA | ampC | phoQ | mpl | nalC | nalD | dacB | PA3206 | pgi | atpD | pepA | |
| 3 | 6 | 256 | G531D, A513T | Q155R, V239A, V356I |
G301G | M38fs | R274H | ||||||||
| 6 | 5 | 58 | S88fs | G191D | |||||||||||
| 12 | 0.5 | 256 | S543G, A60V | H223Y | G469S | G214S | |||||||||
| 13 | 0.19 | 256 | R504C, G63D | H169R | W414* | ||||||||||
| 15 | 16 | 256 | |||||||||||||
| 17 | 12 | 32 | A244T | ||||||||||||
| 18 | 5 | 24 | V16fs | ||||||||||||
| 22 | 24 | 256 | V5fs | I524S | N347T | P62fs | R26fs | ||||||||
| 28 | 8 | 256 | R504H, A482V, N242S |
G183S, V239A, V356I |
M38fs | L22P | G208D | ||||||||
| 31 | 2 | 256 | Y367C | R126C, G183S |
|||||||||||
| 34 | 0.19 | 8 | |||||||||||||
| 44 | 8 | 256 | I524T, T267A | G105E | V239A, D245G | E10E | Y264C | ||||||||
| 46 | 8 | 256 | C272R | ||||||||||||
| 90 | 0.38 | 256 | A244T | G105R | |||||||||||
| Vx611 | 0.125 | 256 | P527S | E635G | M38fs | ||||||||||
Fractions of strains with nonsynonymous mutations in each gene were as follows: mexR, 0.20; ftsI, 0.73; clpA, 0.20; ampC, 0.33; phoQ, 0.13; mpl, 0.27; nalC, 0.07; nalD, 0.07; dacB, 0.07; PA3206, 0.20; pgi, 0.07; atpD, 0.07; pepA, 0.20.