Hd1 ubi

Stable Identifier
R-OSA-9920270
Type
Protein [EntityWithAccessionedSequence]
Species
Oryza sativa
Synonyms
Hd1, Heading date 1
Locations in the PathwayBrowser
Summation

Two independent photoperiod pathways, involving the floral regulators Heading date 1 (Hd1) and Early heading date 1 (Ehd1), have been implicated in flowering date. Hd1 is predominantly regulated by the circadian clock through OsGIGANTEA (OsGI), a key gene that positively controls Hd1 expression. Hd1 is a zinc finger type transcriptional activator with a conserved CCT-domain that acts as a crucial nuclear localization signal for the correct protein function. Presence of light-active phytochromes could modify Hd1 activity to inhibit Hd3a transcription. Under SD conditions, Hd1 activates Hd3a transcription thereby promoting flowering, whereas under non-inductive LD conditions Hd1 acts as a repressor.

External Reference Information
External Reference
Gene Names
HD1, SE1, Os06g0275000, LOC_Os06g16370, P0038C05.23, P0676F10.34
Chain
chain:1-395
Participant Of
Other forms of this molecule
Inferred To
Modified Residues
Name
ubiquitinylated lysine at unknown position
PsiMod Name
PsiMod Definition
A protein modification that effectively crosslinks the N6-amino of a peptidyl lysine with the carboxyl-terminal glycine of a ubiquitin.