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Peptide-Based Drug Design

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Cationic Antimicrobial <strong>Peptide</strong>s 131<br />

A + HA + Unusual<br />

Inactive 2 (56–58)<br />

amino acid<br />

HVUK<br />

composition<br />

R-Dab-Thr-Dab-Dab-Dab-(D) Cyclic<br />

1.8 26 (59–61)<br />

Phe-Leu-Dab-Dab-Thr (Dab is lipopeptide<br />

diaminobutyric acid)<br />

RRRPRPPYLPRPRPPPFF Unusual<br />

4 250 (62,63)<br />

PPRLPPRIPPGFPPRF<br />

amino acid<br />

PPRFP-NH2<br />

composition<br />

RGGRLCYCRRRFCVCVGR �-Sheet 0.75–11 1.7–8 (64–66)<br />

IOA*IULA*A + PGA + KA +<br />

GALMGA + NMKA + AA +<br />

Nisin Lactococcus<br />

lactis<br />

Polymyxin B Bacillus<br />

polymyxa<br />

PR-39 Pig<br />

intestine<br />

KWCFRVCYRGICYRRCR �-Sheet 6.3–12.5 3.1–6.3 (67,68)<br />

Protegrin-1 Porcine<br />

leukocyte<br />

Tachyplesin I Horseshoe<br />

crab<br />

A ∗ , part of lanthionine; A + , part of 3-methyllanthionine; U, dehydroalanine; O, dehydrobutyrine.

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