A synthetic peptide derived from NK-lysin with activity against mycobacterium tuberculosis and its structure-function relationship

Gu Hao, Dai Rongji, Qiu Kui, Teng Zhongqiu, Wang Heyao*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

As appearance of drug resistant and multidrug resistant strains of Mycobacterium tuberculosis, antibiotics were no longer the only way to inhibit M. tuberculosis. It was shown that the porcine peptide NK-lysin is active against various microbes by interacting with microbial membranes. The NK-lysin-derived peptide has been demonstrated to possess stronger effect. Under this motivation, we synthesized a short peptide (N22) derived from an active fragment of NK-lysin-an important antimycobaterial domain involving the loop and the α-helical structure. Furthermore, we studied its stability and biological activity in vitro. The results showed that it inhibited the growth of M. tuberculosis H37Rv and had a low toxicity to human erythrocyte.

Original languageEnglish
Pages (from-to)301-306
Number of pages6
JournalInternational Journal of Peptide Research and Therapeutics
Volume17
Issue number4
DOIs
Publication statusPublished - Dec 2011

Keywords

  • Active fragments
  • Antimycobacterial activity
  • Mycobacterium tuberculosis
  • NK-lysin

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