Structural Analysis of New Syringopeptins by Tandem Mass Spectrometry

Akira Isogai, Akira Isogai, Haruhisa Iguchi, Jiro Nakayama, Akinori Suzuki, Akihiko Kusai, Jon Y. Takemoto

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29 Citations (Scopus)


New syringopeptins SP(SC)-1 and -2 were isolated from culture filtrates of phytopathogenic bacterium strain SC1 of Pseudomonas syringae pv. syringae. These syringopeptins were composed of a β-hydroxy fatty acid, a long sequence of aliphatic amino acids, and a lactone moiety of eight amino acids. The amino acid sequences were deduced from a comparison of their tandem mass sepctra with those of known syringopeptins SP-22a and SP-25a. SP(SC)-1 and SP(SC)-2 resembled SP-22a, but differed from the latter by 3 amino acids.

Original languageEnglish
Pages (from-to)1374-1376
Number of pages3
JournalBioscience, biotechnology, and biochemistry
Issue number7
Publication statusPublished - 1995
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Analytical Chemistry
  • Biochemistry
  • Applied Microbiology and Biotechnology
  • Molecular Biology
  • Organic Chemistry


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