Biosynthesis of the 131-oxo Croup and the /Socylic Ring E of Bacteriochlorophyll a in Various Purple Photosynthetic Bacteria Using 18O-Labelling and Mass Spectrometry

  • R. J. Porra
  • M. Urzinger
  • J. Winkler
  • C. Bubenzer
  • H. Scheer
Chapter

Abstract

Bacteriochlorophyll (BChl) a, is an antenna and reaction centre pigment of many photosynthetic bacteria. BChl a contains six oxygen atoms: one carbonyl atom at both the 3-acetyl and 131-oxo groups and four carboxyl oxygens at C-133 and -173 (Fig. 1).

Key words

enzymes hydratase/oxygenase Rhodobacter sphaeroides Rhodovulum sulphidophilum stable isotopes 

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Copyright information

© Springer Science+Business Media Dordrecht 1998

Authors and Affiliations

  • R. J. Porra
    • 1
  • M. Urzinger
    • 2
  • J. Winkler
    • 2
  • C. Bubenzer
    • 1
  • H. Scheer
    • 1
  1. 1.Botanisches InstitutUniversität MunchenMünchenGermany
  2. 2.Institut für Organische Chemie und BiochemieTechnische Universität-MünchenGarchingGermany

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