TABLE 1.
MBL | MIC (μg/ml) ofa: |
|||||||
---|---|---|---|---|---|---|---|---|
Amp | Mer | Imi | Ert | Cep | Cro | Cpm | Azt | |
Vector control | <4 | <1 | <1 | <0.25 | <4 | <1 | <0.06 | <0.5 |
NDM-1 | ||||||||
WT | 512 | 16 | 128 | 32 | 256 | 128 | 2 | <0.5 |
Mutant | ||||||||
L59A | 32 | 8 | 64 | 16 | 64 | 32 | 0.25 | <0.5 |
M61A | 1,024 | 8 | 64 | 8 | 128 | 32 | 0.25 | <0.5 |
M61V | 512 | 8 | 32 | 8 | 128 | 64 | 4 | <0.5 |
F64A | 1,024 | 8 | 64 | 8 | 128 | 64 | 2 | <0.5 |
F64W | 512 | 8 | 64 | 32 | 128 | 64 | 4 | <0.5 |
V67G | 128 | <1 | 16 | 2 | 128 | 64 | <0.125 | <0.5 |
V67Y | 512 | 4 | 32 | 8 | 64 | 32 | <0.125 | <0.5 |
W87A | <4 | <1 | 4 | <1 | 8 | <4 | <0.125 | <0.5 |
W87F | 256 | <1 | 64 | 16 | 128 | 64 | <0.125 | <0.5 |
Q119A | 128 | 4 | 32 | 16 | 128 | 64 | <0.125 | <0.5 |
Q119D | 16 | <1 | 4 | <1 | 16 | <2 | <0.125 | <0.5 |
Q119S | 128 | 4 | 64 | 16 | 128 | 64 | <0.125 | <0.5 |
K224A | <4 | <1 | 4 | <1 | 128 | 64 | <0.125 | <0.5 |
K224R | 512 | 8 | 16 | 8 | 128 | 64 | <0.125 | <0.5 |
K228A | 512 | 8 | 64 | 16 | 256 | 128 | 4 | <0.5 |
S229A | 128 | 8 | 64 | 16 | 64 | 32 | <0.125 | <0.5 |
N233A | 128 | 4 | 8 | 8 | 32 | 16 | <0.125 | <0.5 |
Y244A | 512 | 8 | 128 | 16 | 128 | 64 | 2 | <0.5 |
Amp, ampicillin; Mer, meropenem; Imi, imipenem; Ert, ertapenem; Cep, cephalothin; Cro, ceftriaxone; Cpm, cefepime; Azt, aztreonam.