Enzymatic Conversion of Cyclic Dipeptides to Dehydro Derivatives That Inhibit Cell Division.

Hiroshi Kanzaki, Daisuke Imura, Teruhiko Nitoda, Kazuyoshi Kawazu

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The cell−free extract of an albonoursin−producing strain, Streptomyces albulus KO−23, was found to catalyze the conversion of several cyclic dipeptides having Phe and aliphatic side chain−containing amino acid residues to the corresponding dehydro derivatives. 3Z−Benzylidene−6S−methyl−2, 5−piperazinedione, 3Z−benzylidene−2, 5−piperazinedione, and 3Z, 6Z−dibenzylidene−2, 5−piperazinedione were prepared by this conversion system. Among the dehydro cyclic dipeptides prepared, tetradehydro derivatives exhibited inhibitory activity toward the first cleavage of sea urchin embryo, while didehydro derivatives did not. We previously found that cyclo (Leu−Phe) and its didehydro derivatives did not show any inhibitory activity, in contrast to high activity in the case of albonoursin. Taken together, these findings indicate that dehydrogenation at the α, β−positions of both amino acid residues in this type of cyclic dipeptide is required for the inhibitory activity
Original languageEnglish
Pages (from-to)86-89
Number of pages4
JournalJournal of Bioscience and Bioengineering
Volume90
Issue number1
DOIs
Publication statusPublished - 2000
Externally publishedYes

Fingerprint

Dipeptides
Cell Division
Cells
Derivatives
Amino acids
Amino Acids
Sea Urchins
Streptomyces
Dehydrogenation
Embryonic Structures

Keywords

  • dehydro amino acid
  • diketopiperazine
  • dehydrogenation
  • actinomycetes

Cite this

Enzymatic Conversion of Cyclic Dipeptides to Dehydro Derivatives That Inhibit Cell Division. / Kanzaki, Hiroshi; Imura, Daisuke; Nitoda, Teruhiko; Kawazu, Kazuyoshi.

In: Journal of Bioscience and Bioengineering, Vol. 90, No. 1, 2000, p. 86-89.

Research output: Contribution to journalArticle

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