Tertiary and quaternary structures of phytochrome A

Masayoshi Nakasako, Satoru Tokutomi

Research output: Chapter in Book/Report/Conference proceedingChapter


Phytochrome A (phy A) is a major member of phytochrome family and is photoconvertible between a red light (Pr) and a far-red light absorbing (Pfr) form. The Pfr form predominantly regulates downstream signaling cascades leading to a variety of photomorphogenic responses ([Smith 2000], [Fankhauser 2001], [Quail 2002]). In the last decade, molecular biological studies have identified functionally important residues and sequence motifs in phyA ([Park et al 2000]). However, the molecular structure of phy A and structural changes upon Pr-Pfr phototransformation are still unclear. Here, we describe our recent results on phyA structures with a brief review of structural studies on phytochromes.

Original languageEnglish
Title of host publicationLight Sensing in Plants
PublisherSpringer Japan
Number of pages7
ISBN (Electronic)9784431270928
ISBN (Print)4431240020, 9784431240020
Publication statusPublished - 2005

ASJC Scopus subject areas

  • General Agricultural and Biological Sciences
  • General Medicine


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