Table 2 Lethal concentrations (CL, μm) of CAP18(FV) and its mutants against Gram-positive bacteria

From: Positive selection in cathelicidin host defense peptides: adaptation to exogenous pathogens or endogenous receptors?

 

CAP18(FV)

CAP18(FV)(2-31)

CAP18(FV)-HsNC

CAP18(FV)-TtNC

BC CGMCC 1.1846

NA

NA

NA

NA

BM CGMCC 1.0459

1.40

1.46

1.64

1.92

BS CGMCC 1.2428

1.10

1.45

1.80

2.36

ML CGMCC 1.0290

0.94

0.90

1.18

1.50

SA CGMCC 1.89

NA

NA

NA

NA

SA (J685,J698,J700 J706,J708,J710)

NA

NA

NA

NA

PSSE P1111

NA

NA

NA

NA

MRCNS P1369

1.57

1.44

1.48

2.09

MRSA P1374

1.20

1.46

2.08

2.13

MRSA P1381

1.73

1.46

1.85

2.17

PRSA P1383

1.19

1.35

1.74

2.29

PRSE P1386

NA

NA

NA

NA

PRSE P1389

1.00

1.15

1.30

1.87

SW ATCC 1.2824

1.38

0.78

1.00

2.17

SG NBRC 13350

6.36

8.84

5.68

ND

SSCA CGMCC 4.1765

1.84

3.10

8.93

8.66

SM ATCC 1.2499

1.67

0.73

2.02

4.97

SSAL ATCC 1.2498

2.25

2.66

2.79

4.13

SSAN ATCC 1.2497

1.16

1.75

2.81

3.83

  1. Abbreviations: BC, Bacillus cereus; BM, Bacillus megaterium; BS, Bacillus subtilis; ML, Micrococcus luteus; MRCNS, Methicillin-resistant coagulase negative Staphylococci; MRSA, Methicillin-resistant Staphylococcus aureus; PRSA, Penicillin-resistant Staphylococcus aureus; PRSE, Penicillin-resistant Staphylococcus epidermidis; PSSE, Penicillin- sensitive Staphylococcus epidermidis; SA, Staphylococcus aureus; SG, Streptomyces griseus; SM, Streptococcus mutans; SSCA, Streptomyces scabiei; SSAL, Streptococcus salivarius; SSAN, Streptococcus sanguinis; SW, Staphylococcus warneri. NA means ‘no activity’, as identified by no inhibition zone observed at 0.8 nmol peptide each well. ND means ‘activity not determined’.