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Antibacterial Activity of Peptides Synthesized Based on the Bombus ignitus abaecin, A Novel Proline-Rich Antimicrobial Peptide  [2007]

Kim, S.R. (National Institute of Agricultural Science and Technology, RDA, Suwon, Republic of Korea) Lee, E.M. (National Institute of Agricultural Science and Technology, RDA, Suwon, Republic of Korea) Yoon, H.J. (National Institute of Agricultural Science and Technology, RDA, Suwon, Republic of Korea) Choi, Y.S. (National Institute of Agricultural Science and Technology, RDA, Suwon, Republic of Korea) et al.

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Abaecin is a largest member of the proline-rich antimicrobial peptide family found only in the hymenopterans. A cDNA of abaecin was previously isolated and cloned from Bombus ignitus: the mature peptide of Bombus ignitus abaecin was composed of 39 amino acid residues. In the present study, we determined the antibacterial effect of B. ignitus abaecin synthesized at several lengths against several bacteria by radial diffusion assay. The 37-mer peptide (Ab37) inhibited the growth of Gram-negative bacteria Escherichia coli ML-35, Pseudomonas aeruginosa and Salmonela typhimurium, but showed limited inhibitory activity toward Gram-positive bacteria, except for Micrococcus luteus.

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International Journal of Industrial Entomology

ISSN : 1598-3579

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