Detailed gene information

Genes [306]

TAIR: AT4G18130


Clack T et al., 1994, Plant Mol. Biol.
Aukerman M J et al., 1997, Plant Cell
Goosey L et al., 1997, Plant Physiol.
Devlin P F et al., 1998, Plant Cell
Hennig L et al., 2002, Plant Physiol.
Clack T et al., 2009, Plant Cell

Appears in the following schemes

Photoperiod pathway

Protein function

Encodes a light-labile photoreceptor.


Multiple mutant:
phyB and phyE mutations enhance the early flowering-time phenotype of phyB single mutant. [Devlin et al., 1998]

Single mutant:
phye single mutant is early flowering under SD conditions only. [Clack et al., 2009]

Regulatory photoreceptor which exists in two forms that are reversibly interconvertible by light: the Pr form that absorbs maximally in the red region of the spectrum and the Pfr form that absorbs maximally in the far-red region. Photoconversion of Pr to Pfr induces an array of morphogenic responses, whereas reconversion of Pfr to Pr cancels the induction of those responses. Pfr controls the expression of a number of nuclear genes including those encoding the small subunit of ribulose-bisphosphate carboxylase, chlorophyll A/B binding protein, protochlorophyllide reductase, rRNA, etc. It also controls the expression of its own gene(s) in a negative feedback fashion. [Data from UniProt]

Regulators, targets and interactors

Downstream actors

Upstream actors

Protein-protein interactions

PIF3 -- [Clack et al., 2009] -- [View TAIR record]

PHYD -- [Clack et al., 2009] -- [View TAIR record]

PHYB -- [Clack et al., 2009] -- [View TAIR record]

PHYC -- [Clack et al., 2009] -- [View TAIR record]

PHYE interaction network

Downstream and upstream flowering-related genes

Physical interactions with other flowering-related proteins