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Isolation and Characterization of a Novel Class of Plant Antimicrobial Peptides from Mirabilis jalapa L. Seeds

Tipo de material: TextoTextoSeries ; The Journal of Biological Chemistry, 267(4), p.228-2233, 1992Trabajos contenidos:
  • Cammue, B.P.A
  • De Bolle, M.F.C
  • Terras, F.R.G
  • Proost, P
  • Van Damme, J
  • Rees, S.B
  • Vanderleyden, J
  • Vanderleyden, J
Recursos en línea: Resumen: We have isolated from seeds of Mirabilis jalapa L. two antimicrobial peptides, designated Mj-AMP1 and Mj-AMPS, respectively. These peptides are highly basic and consist of 37 and 36 residues for Mj-AMP1 and Mj-AMPB, respectively. Both peptides contain three disulfide bridges and differ from one another only by 4 amino acids. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis analysis of the reduced and unreduced peptides suggests that the peptides associate into dimers in their native form. The Mj-AMPs exhibit a broad spectrum of antifungal activity since they are active against all 13 tested plant pathogenic fungi. Concentrations required for 50
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We have isolated from seeds of Mirabilis jalapa L. two antimicrobial peptides, designated Mj-AMP1 and Mj-AMPS, respectively. These peptides are highly basic and consist of 37 and 36 residues for Mj-AMP1 and Mj-AMPB, respectively. Both peptides contain three disulfide bridges and differ from one another only by 4 amino acids. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis analysis of the reduced and unreduced peptides suggests that the peptides associate into dimers in their native form. The Mj-AMPs exhibit a broad spectrum of antifungal activity since they are active against all 13 tested plant pathogenic fungi. Concentrations required for 50

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