Detailed gene information

Genes [306]




AHL22
AT-HOOK MOTIF NUCLEAR-LOCALIZED PROTEIN 22
TAIR: AT2G45430
UNIPROT: O22130
NOWOMICS: View List

Publications

Xiao C et al., 2009, Plant Mol. Biol.
Yun J et al., 2012, J. Biol. Chem.

Appears in the following schemes

Time-course regulation of photoperiodic pathway
General processes & autonomous pathway

Protein function

Encodes a DNA binding protein that bind AT-rich regions in vitro.

Phenotype

RNA interference:
ahl18;ahl22;ahl27;ahl28 multiple RNAi knockdown transgenic line is early flowering under both SD and LD conditions. [Xiao et al., 2009]

Overexpressor:
AHL22 overexpressor is late flowering under LD conditions. [Xiao et al., 2009][Yun et al., 2012]

Function:
Transcription factor that specifically binds AT-rich DNA sequences related to the nuclear matrix attachment regions (MARs). Binds an AT-rich DNA sequences in the FLOWERING LOCUS T (FT) promoter (PubMed:22442143). Acts redundantly with AHL18, AHL27 and AHL29 in the regulation of flowering and regulation of the hypocotyl elongation. Plays a role in both photo- and skotomorphogenesis (PubMed:19517252). Acts as a chromatin remodeling factor that modifies the architecture of FLOWERING LOCUS T (FT) chromatin by modulating both H3 acetylation and methylation leading to the regulation of FT expression during flowering induction (PubMed:22442143). [Data from UniProt]

Regulators, targets and interactors

Downstream actors

causality
FT -- [Xiao et al., 2009][Yun et al., 2012] -- [View TAIR record]



Upstream actors


Protein-protein interactions

HDA1, HDA19, -- [Yun et al., 2012] -- [View TAIR record]



AHL22 interaction network

Downstream and upstream flowering-related genes

Physical interactions with other flowering-related proteins