Table 3 MICs of ILE and ILF against gene edited strains and corresponding spontaneous mutants

From: Mutations in ClpC1 or ClpX subunit of caseinolytic protease confer resistance to ilamycins in mycobacteria

Strains

Amino acid change

MICs (µg mL−1) / (Fold change)

ILE

ILF

Mabwt

/

1

20

MabR2a

ClpC1wt to ClpC1F2L

4 / (4)

> 128 / (> 6)

Mab-C1F2L

ClpC1wt to ClpC1F2L

8 / (8)

> 128 / (> 6)

MabR1a

ClpXwt to ClpXP30H

> 128 / (> 128)

> 128 / (> 6)

Mab-XP30H

ClpXwt to ClpXP30H

> 128 / (> 128)

> 128 / (> 6)

Msmwt

/

0.0625

2.5

MsmR2b

ClpC1wt to ClpC1F2C

0.25 / (4)

10 / (4)

Msm-C1F2C

ClpC1wt to ClpC1F2C

0.5 / (8)

20 / (8)

MsmR3b

ClpC1wt to ClpC1M1-L-F2

1 / (16)

20 / (8)

Msm-C1M1-L-F2

ClpC1wt to ClpC1M1-L-F2

0.25 / (4)

16 / (6.4)

MsmR8b

ClpC1wt to ClpC1F2S ClpC1wt to ClpC1I197N

0.25 / (4)

10 / (4)

Msm-C1I197N

ClpC1wt to ClpC1I197N

0.0625 / (1)

2.5 / (1)

  1. aResistant mutants selected from ILE-containing plates.
  2. bResistant mutants selected from ILF-containing plates; -C1 or -X means ClpC1 or ClpX was edited.