Opposites attract: some phytochromes do not form homodimers.
Hofmann
Nancy R
NR
D017360:Arabidopsis; D029681:Arabidopsis Proteins / Q000737:chemistry* / Q000378:metabolism; D051792:Basic Helix-Loop-Helix Proteins / Q000378:metabolism; D019281:Dimerization; D055537:Light Signal Transduction; D010834:Phytochrome / Q000737:chemistry* / Q000378:metabolism; D020836:Protein Structure, Quaternary
D029681:Arabidopsis Proteins; D051792:Basic Helix-Loop-Helix Proteins; D010834:Phytochrome; C116162:PIF3 protein, Arabidopsis