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Poster Presentations
Day 2, June 11（Tue.） Room P1 (Multipurpose Hall)・Room P2 (Conference Room 101+102)
- 2P-38
Structural Deteemination of an Insecticidal Peptide Bl-3 from the Venom of the North African Scorpion, Buthacus leptochelys
(1Kyoto Univ., 2Al-Azhar Univ.)
oRyo Shimase1, Yusuke Yoshimoto1, Wahab Mohammed2, Sarhan Moustafa2, Yoshiaki Nakagawa1, Masahiro Miyashita1
Scorpion venom contains various bioactive peptides that show insecticidal, antimicrobial or hemolytic activity. Bl-3 is an insecticidal peptide isolated from the venom of the north African scorpion Buthacus lteptochelys by bioassay-guided RP-HPLC fractionation. In this study, we determined the structure of Bl-3 by Edman degradation and de novo sequencing analysis. As a result of sequence database search, Bl-3 shares sequence similarity to scorpion α-toxins, which act on Na+ channels.