Archives of Microbiology

, Volume 131, Issue 2, pp 129–131 | Cite as

The pathway ofD-cycloserine biosynthesis inStreptomyces garyphalus

  • Marie-Louise Svensson
  • Sten Gatenbeck
Original Papers


Incubation experiments using washed cells and toluene treated cells ofStreptomyces garyphalus showed that O-acetyl-L-serine and hydroxyurea are intermediates in the biosynthesis ofD-cycloserine. The formation of [14C]O-ureidoserine from O-acetyl-L-serine and hydroxyurea was demonstrated by incubating an enzyme solution with14C-labelled substrates. Desalted cell-free extract catalyzed the conversion of O-ureido-D-serine toD-cycloserine in a reaction requiring ATP and Mg2+. The results suggested the following pathway forD-cycloserine biosynthesis.

Key words

D-Cycloserine O-Ureido-D-serine Biosynthesis Streptomyces garyphalus 


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Copyright information

© Springer-Verlag 1982

Authors and Affiliations

  • Marie-Louise Svensson
    • 1
  • Sten Gatenbeck
    • 1
  1. 1.Department of Biochemistry and BiotechnologyRoyal Institute of TechnologyStockholmSweden

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