The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 08, 2016
Filed:
Mar. 07, 2013
Helix Biomedix Inc., Bothell, WA (US);
Lijuan Zhang, Kenmore, WA (US);
Robin Carmichael, Redmond, WA (US);
HELIX BIOMEDIX, INC, Bothell, WA (US);
Abstract
Disclosed are peptides having biological and therapeutic activity. Particularly disclosed are lipidated di- or tri-peptides analogs of KPV or KdPT that exhibit antimicrobial activity. In particular, the peptides of this invention provide enhanced anti-microbial activity over the base tri-peptides, lysine-proline-valine and lysine-d-proline-tyrosine. The disclosed peptides have the general formula of C12-18 lipid-KXZ-NHi wherein K is lysine; X is proline, d-proline, histidine or arginine; Z is optional and if present Z is valine, threonine, alanine or leucine; and the terminal COOH is NHamidated. The C12-18 lipid is preferably the lipid moiety of lauric acid (C12), myristic acid (C14), pentadecanoic acid (C15), palmitic acid (C16), or stearic acid (C18). The invention is further related to methods of using of these peptides to treat various insults, inflammations or bacterial infections affecting the skin and other related mucosal body surfaces such as the oral cavity.