Skip to main content

Table 2 Erythromycin sensitivity

From: Predicted transmembrane proteins with homology to Mef(A) are not responsible for complementing mef(A) deletion in the mef(A)–msr(D) macrolide efflux system in Streptococcus pneumoniae

Strain

Genotype

Phenotypeb

Erythromycin

MIC (µg/ml)

Chromosome

Φ1207.3a

spr0971

spr1023

spr1932

mef(A)

msr(D)

DP1004

+

+

+

np

np

Sensitive

0.06

FR183

+

+

+

+

+

Resistant

8

FP40

+

+

+

+

Resistant

4

FR323

+

+

np

np

Sensitive

0.06

FR324

+

+

np

np

Sensitive

0.06

FR325

+

+

np

np

Sensitive

0.06

FR358

+

+

+

+

Resistant

8

FR359

+

+

+

+

Resistant

8

FR360

+

+

+

+

Resistant

8

FR355

+

+

+

Resistant

4

FR356

+

+

+

Resistant

4

FR357

+

+

+

Resistant

4

FR335

+

np

np

Sensitive

0.06

FR336

+

np

np

Sensitive

0.06

FR337

+

np

np

Sensitive

0.06

FR344

+

+

+

Resistant

8

FR345

+

+

+

Resistant

8

FR349

+

+

+

Resistant

8

FR346

+

+

Resistant

8

FR347

+

+

Resistant

8

FR348

+

+

Resistant

4

FR338

np

np

Sensitive

0.06

FR351

+

+

Resistant

8

FR350

+

Resistant

4

  1. anp: Φ1207.3 phage not present
  2. bMIC interpretative standards: sensitive ≤ 0.25 µg/ml, intermediate = 0.5 µg/ml, and resistant ≥ 1 µg/ml