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The action spectrum and phototransformations of pterobilin (biliverdin IX gamma).

Authors
  • Bois-Choussy, M
  • Barbier, M
Type
Published Article
Journal
Archives of biochemistry and biophysics
Publication Date
Mar 01, 1983
Volume
221
Issue
2
Pages
590–592
Identifiers
PMID: 6838212
Source
Medline
License
Unknown

Abstract

Pterobilin 1 (biliverdin IX gamma), a butterfly bile pigment, is photocyclized into phorcabilin 2 and sarpedobilin 3 by irradiation in visible light. Selective irradiations have now been performed at the absorption maxima of pterobilin 1. The 650-nm radiations are responsible for the observed photocyclizations while the 375-nm radiations lead to decomposition products. These results are discussed in connection with a hypothesis concerning the biological role of pterobilin in butterfly larvae.

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