Origins of life and evolution of the biosphere

, Volume 27, Issue 4, pp 405–412

EVOLUTIONARY CONSIDERATION ON 5-AMINOLEVULINATE SYNTHASE IN NATURE

Authors

  • TAMIKO OH-HAMA
    • The Research Institute of Evolutionary Biology
Article

DOI: 10.1023/A:1006583601341

Cite this article as:
OH-HAMA, T. Orig Life Evol Biosph (1997) 27: 405. doi:10.1023/A:1006583601341

Abstract

5-Aminolevulinic acid (ALA), a universal precursor of tetrapyrrole compounds can be synthesized by two pathways: the C5 (glutamate) pathway and ALA synthase. From the phylogenetic distribution it is shown that distribution of ALA synthase is restricted to the α subclass of purple bacteria in prokaryotes, and further distributed to mitochondria of eukaryotes. The monophyletic origin of bacterial and eukaryotic ALA synthase is shown by sequence analysis of the enzyme. Evolution of ALA synthase in the α subclass of purple bacteria is discussed in relation to the energy-generating and biosynthetic devices in subclasses of this bacteria.

Copyright information

© Kluwer Academic Publishers 1997