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AT-hook motif nuclear-localized protein

Transcription factor that specifically binds AT-rich DNA sequences related to the nuclear matrix attachment regions (MARs). May play a function in the positioning of chromatin fibers within the nucleus.

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AT-hook motif nuclear-localized protein 15

Also known as AT-hook motif nuclear-localized protein 15 (AT-hook protein of GA feedback 2).
Transcription factor that specifically binds AT-rich DNA sequences related to the nuclear matrix attachment regions (MARs) (). Binds the DNA sequence GNFEI (GA-negative feedback element I) in the GA3OX1 promoter (PubMed:17277098). Negatively regulates plant innate immunity (PTI) to pathogens through the down-regulation of the PAMP-triggered FRK1 expression (PubMed:20738724).

AT-hook motif nuclear-localized protein 16

Also known as AT-hook motif nuclear-localized protein 16 (Protein TRANSPOSABLE ELEMENT SILENCING VIA AT-HOOK) (Protein TEK).
Encodes a nuclear matrix protein with AT-hook DNA binding motifs that acts in the maintenance of genomic integrity by silencing TEs and repeat-containing genes through epigenetic machinery. It interacts with FVE and MSI5 which are components of HDAC corepressor complexes. It is expressed in tapetum during the tetrad stage.

AT-hook motif nuclear-localized protein 19

Transcription factor that specifically binds AT-rich DNA sequences related to the nuclear matrix attachment regions (MARs) (). Negatively regulates plant innate immunity (PTI) to pathogens through the down-regulation of the PAMP-triggered FRK1 expression (PubMed:20738724). Positively regulates defense against fungal Verticillium infection (PubMed:21864046).

AT-hook motif nuclear-localized protein 20

Transcription factor that specifically binds AT-rich DNA sequences related to the nuclear matrix attachment regions (MARs) (). Negatively regulates plant innate immunity (PTI) to pathogens through the down-regulation of the PAMP-triggered NHO1 and FRK1 expression (PubMed:20738724).

AT-hook motif nuclear-localized protein 22

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).

AT-hook motif nuclear-localized protein 25

Also known as AT-hook motif nuclear-localized protein 25 (AT-hook protein of GA feedback 1).
Transcription factor that specifically binds AT-rich DNA sequences related to the nuclear matrix attachment regions (MARs) (). Binds the DNA sequence GNFEI (GA-negative feedback element I) in the GA3OX1 promoter. Binding to GNFEI sequence is required for GA-negative feedback regulation of GA3OX1.

AT-hook motif nuclear-localized protein 29

Also known as AT-hook motif nuclear-localized protein 29 (Protein SUPPRESSOR OF PHYB-4#3).
Encodes an AT hook domain containing protein. Identified in a screen of activation tagged lines that suppress the long-hypocotyl phenotype of a weak phyB allele. Affects cell elongation in the hypocotyl and leaves.Acts redundantly with ESC to modulate hypocotyl growth inhibition in response to light

AT-hook motif nuclear-localized protein 3

Transcription factor that specifically binds AT-rich DNA sequences related to the nuclear matrix attachment regions (MARs) (). Acts redundantly with AHL4 to regulate the formation of tissue boundary between the xylem and procambium in the root meristem (PubMed:23335615).

AT-hook motif nuclear-localized protein 4

Transcription factor that specifically binds AT-rich DNA sequences related to the nuclear matrix attachment regions (MARs) (). Acts redundantly with AHL3 to regulate the formation of tissue boundary between the xylem and procambium in the root meristem. Cell-to-cell movement of AHL4 from the procambium to the xylem is critical for its function in root vascular patterning (PubMed:23335615).
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