Table 2 Bacterial inhibitory concentration and relative bacterial inhibitory concentration values from activity measurements of wild type combinations of Pls-α, Pls-β, Mur-α and Mur-β.

From: NMR structures and mutational analysis of the two peptides constituting the bacteriocin plantaricin S

Peptide combinationb

Bacterial inhibitory concentration (nM)

Relative bacterial inhibitory concentration valuesa

Lac. lactis IL1403

Lab. sakei NCFB 2714

Lac. lactis IL1403

Lab. sakei NCFB 2714

Pls-α

>1000

91 ± 5

>1500

650

Pls-β

>1000

>1000

>1500

>7000

Mur-α

>1000

>1000

>1500

>7000

Mur-β

>1000

670 ± 120

>1500

5000

Pls-α + Pls-β

0.7 ± 0.2

0.14 ± 0.02

1

1

Mur-α + Mur-β

2.1 ± 0.4

0.23 ± 0.06

3

2

Pls-α + Mur-α

>1000

26 ± 5

>1400

200

Pls-α + Mur-β

2.2 ± 0.3

0.63 ± 0.01

3

5

Pls-β + Mur-α

3.2 ± 0.7

0.63 ± 0.01

5

5

Pls-β + Mur-β

>1000

270 ± 120

>1400

2000

  1. aThe relative bacterial inhibitory concentration is defined as a fold increase or decrease in activity compared to the wild type combination of Pls-α and Pls-β.