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. 1998 Sep;42(9):2206–2214. doi: 10.1128/aac.42.9.2206

TABLE 1.

Activity against gram-positive bacteria and C. albicansa

Organism MIC (μg/ml) of the following compounds in the presence of NaCl at the indicated concn:
LL-37
HNP-1
PG-1
Vancomycin
0 mM 100 mM 0 mM 100 mM 0 mM 100 mM 0 mM 100 mM
L. monocytogenes EGD 1.5 2.2 39.7 >79.1 0.8 0.7 TUb TU
S. epidermidis 7.6 43.9 5.2 >250 0.7 1.1 6.0 8.8
S. aureus 930918-3 12.5 9.2 2.5 25.0 0.7 0.7 0.3 0.4
S. aureus 67395 2.9 5.4 7.9 >250 0.6 0.9 0.2 0.7
S. aureus 68721 3.2 9.0 6.8 >250 0.3 0.6 0.3 0.5
S. aureus 502A 3.6 7.2 2.2 >250 0.7 0.6 0.3 0.5
MRSA 1083 6.5 >79.1 2.5 >250 0.3 0.7 0.3 0.6
MRSA 30371 10.5 >79.1 25.0 >250 0.5 0.7 0.4 0.8
MRSA 54424-1 3.0 25.0 9.6 >250 0.4 0.6 0.3 0.3
MRSA ATCC 33591 3.4 >79.1 21.2 >250 0.5 0.7 0.9 1.2
B. subtilis 2.7 0.5 6.4 1.8 0.6 0.3 0.1 0.1
VREFc 94.132 (E. faecium) 0.7 0.6 2.7 1.0 0.2 0.5 >79.1 >79.1
VREFd CDC 21 (E. faecalis) 3.5 2.0 11.9 >250 1.6 0.7 20.7 7.2
C. albicans 820 >250 >250 >250 >250 0.4 2.9 >250 >250
a

Radial diffusion assays were performed with the standard low-salt underlays and with otherwise identical underlays that also contained 100 mM NaCl. MICs correspond to the x intercepts of plots such as those illustrated in Fig. 2. The molecular mass of vancomycin is 1,448. The masses of the peptides are as follows: LL-37, 4,493; HNP-1, 3,442; PG-1, 2,056. 

b

TU, technically unsatisfactory due to the presence of complex zones of complete and partial clearing. 

c

VREF, vancomycin-resistant E. faecium

d

VREF, vancomycin-resistant E. faecalis