K-box region and MADS-box transcription factor family protein;(source:Araport11)
TAIR Curator Summary:
MADS-box protein encoded by FLOWERING LOCUS C - transcription factor that functions as a repressor of floral transition and contributes to temperature compensation of the circadian clock. Expression is downregulated during cold treatment. Vernalization, FRI and the autonomous pathway all influence the state of FLC chromatin. Both maternal and paternal alleles are reset by vernalization, but their earliest activation differs in timing and location. Histone H3 trimethylation at lysine 4 and histone acetylation are associated with active FLC expression, whereas histone deacetylation and histone H3 dimethylation at lysines 9 and 27 are involved in FLC repression. Expression is also repressed by two small RNAs (30- and 24-nt) complementary to the FLC sense strand 3? to the polyA site. The small RNAs are most likely derived from an antisense transcript of FLC. Interacts with SOC1 and FT chromatin in vivo. Member of a protein complex.
TAIR Short Description:
K-box region and MADS-box transcription factor family protein
Natural antisense transcript overlaps with AT5G10140 (FLC);(source:Araport11)
TAIR Curator Summary:
Small RNA-induced heterochromatic region at the end of FLC which produces cold-induced FLC antisense lncRNA transcripts. Represses FLOWERING LOCUS C (FLC) transcription with increased H3K27me3 and decreased H3K36me3 levels in response to cold temperatures. FCA binding of COOLAIR and SSU72 is critical for PRC2 enrichment and H3K27me3 deposition.