TABLE 2 .
Genetic characteristics of LRCoNS (n = 28)
Case | Species | ST | cfr |
cfr plasmid |
% of 23S rRNA copies harboring SNV |
L3 mutation(s) |
L4 mutation |
Linezolid MIC (µg/ml)a |
|||
---|---|---|---|---|---|---|---|---|---|---|---|
G2576U | C2534U | G2447U | U2504A | ||||||||
1 | S. epidermidis | 5 | 0 | 20 | 0 | 0 | H146Q, V154L, A157R | 71 N | 128 | ||
2 | 5 | Present | Smallb | 0 | 20 | 0 | 0 | H146Q, V154L, A157R | 71 N | 256 | |
3 | 5 | Present | Small | 0 | 20 | 0 | 0 | H146Q, V154L, A157R | 71 N | >256 | |
4 | 5 | 0 | 20 | 0 | 0 | H146Q, V154L, A157R | 71 N | 32 | |||
6 | 23 | Present | Largec | 0 | 0 | 0 | 0 | D159L | 128 | ||
7 | 23 | 0 | 0 | 0 | 0 | D159L | K68N | 16 | |||
19 | 23 | 100 | 100 | 0 | 0 | 32 | |||||
20 | 23 | Present | Large | 0 | 0 | 0 | 0 | D159L | 128 | ||
5 | 23 | 0 | 0 | 0 | 0 | D159L | 8 | ||||
13 | 23 | Present | Large | 0 | 0 | 0 | 0 | D159L | 8 | ||
18 | 23 | Present | Large | 0 | 0 | 0 | 0 | D159L | 32 | ||
28 | 23 | Present | Large | 0 | 0 | 0 | 0 | D159L | 128 | ||
22 | 23 | 100 | 0 | 0 | 0 | 16 | |||||
14 | 24 | Present | Small | 0 | 40 | 0 | 0 | H146Q, V154L, A157R | 71 N | >256 | |
15 | 185 | 0 | 0 | 100 | 0 | A157R | >256 | ||||
27 | 186 | 0 | 40 | 0 | 0 | H146Q, V154L, A157R | 71 N | 32 | |||
23 | 186 | Present | Small | 0 | 40 | 0 | 0 | V154L, A157R | 71 N | >256 | |
17 | 186 | 0 | 40 | 0 | 0 | H146Q, V154L, A157R | 71 N | 32 | |||
25 | 186 | Present | Small | 0 | 40 | 0 | 0 | H146Q, V154L, A157R | 71 N | >256 | |
26 | 186 | 0 | 40 | 0 | 0 | H146Q, V154L, A157R | 71 N | 64 | |||
21 | 186-like | 0 | 40 | 0 | 0 | H146Q, V154L, A157R | 71 N | 32 | |||
8 | S. haemolyticus | 100 | 100 | 100 | 100 | 64 | |||||
10 | 100 | 100 | 100 | 100 | 64 | ||||||
24 | 100 | 100 | 100 | 100 | 64 | ||||||
11 | 100 | 100 | 100 | 100 | 64 | ||||||
12 | 100 | 100 | 100 | 100 | 128 | ||||||
16 | 100 | 100 | 100 | 100 | G139R | 64 | |||||
9 | 100 | 100 | 100 | 100 | 64 |
Determined by broth microdilution.
Small (2.8- to 3.8-kb) plasmid with homology to the cfr-carrying plasmid identified in Staphylococcus cohnii (14).
Large (17-kb) plasmid with 70% homology to the cfr-carrying plasmid pSCFS1, identified in Staphylococcus sciuri (13).