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ABI3 AP2/B3-like transcriptional factor family protein [ Arabidopsis thaliana (thale cress) ]

Gene ID: 822061, updated on 18-Sep-2024

Summary

Official Symbol
ABI3
Official Full Name
AP2/B3-like transcriptional factor family protein
Primary source
TAIR:AT3G24650
Locus tag
AT3G24650
See related
Araport:AT3G24650
Gene type
protein coding
RefSeq status
REVIEWED
Organism
Arabidopsis thaliana (ecotype: Columbia)
Lineage
Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta; Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae; rosids; malvids; Brassicales; Brassicaceae; Camelineae; Arabidopsis
Also known as
ABA INSENSITIVE 3; ABSCISIC ACID INSENSITIVE 3; AtABI3; SIS10; SUGAR INSENSITIVE 10
Summary
Homologous to the maize transcription factor Viviparous-1. Full length ABI3 protein binds to the highly conserved RY motif [DNA motif CATGCA(TG)], present in many seed-specific promoters, and the B3 domains of this transcription factor is necessary for the specific interaction with the RY element. Transcriptional activity of ABI3 requires the B3 DNA-binding domain and an activation domain. In addition to the known N-terminal-located activation domain, a second transcription activation domain was found in the B1 region of ABI3. ABI3 is essential for seed maturation. Regulator of the transition between embryo maturation and early seedling development. Putative seed-specific transcriptional activator. ABI3 is a central regulator in ABA signaling and is unstable in vivo. It interacts with and can by polyubiquitinated by AIP2 in vivo. Based on double mutant analyses, ABI3 interacts genetically with both FUS3 and LEC1 and is involved in controlling accumulation of chlorophyll and anthocyanins, sensitivity to abscisic acid, and expression of the members of the 12S storage protein gene family. In addition, both FUS3 and LEC1 regulate positively the abundance of the ABI3 protein in the seed. Alternative splicing of ABI3 is developmentally regulated by SUA (AT3G54230).
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Genomic context

See ABI3 in Genome Data Viewer
Location:
chromosome: 3
Exon count:
6
Sequence:
Chromosome: 3; NC_003074.8 (8997370..9001185)

Chromosome 3 - NC_003074.8Genomic Context describing neighboring genes Neighboring gene uncharacterized protein Neighboring gene lyase Neighboring gene transmembrane kinase-like 1 Neighboring gene Pectin lyase-like superfamily protein Neighboring gene ncRNA

Bibliography

GeneRIFs: Gene References Into Functions

What's a GeneRIF?

Interactions

Products Interactant Other Gene Complex Source Pubs Description

General gene information

NM_113376.4

Gene Ontology Provided by TAIR

Function Evidence Code Pubs
enables DNA binding IDA
Inferred from Direct Assay
more info
PubMed 
enables DNA-binding transcription factor activity IDA
Inferred from Direct Assay
more info
PubMed 
enables DNA-binding transcription factor activity ISS
Inferred from Sequence or Structural Similarity
more info
PubMed 
enables DNA-binding transcription factor activity TAS
Traceable Author Statement
more info
PubMed 
enables protein binding IPI
Inferred from Physical Interaction
more info
PubMed 
enables sequence-specific DNA binding IDA
Inferred from Direct Assay
more info
PubMed 
Component Evidence Code Pubs
located_in cytosol IDA
Inferred from Direct Assay
more info
PubMed 
located_in nucleus IDA
Inferred from Direct Assay
more info
PubMed 
located_in nucleus ISM
Inferred from Sequence Model
more info
 

General protein information

Preferred Names
AP2/B3-like transcriptional factor family protein
NP_189108.1
  • ABA INSENSITIVE 3 (ABI3); CONTAINS InterPro DOMAIN/s: Transcriptional factor B3 (InterPro:IPR003340); BEST Arabidopsis thaliana protein match is: AP2/B3-like transcriptional factor family protein (TAIR:AT3G26790.1); Has 4494 Blast hits to 2758 proteins in 300 species: Archae - 0; Bacteria - 132; Metazoa - 1104; Fungi - 405; Plants - 1155; Viruses - 101; Other Eukaryotes - 1597 (source: NCBI BLink).

NCBI Reference Sequences (RefSeq)

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Genome Annotation

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference assembly

Genomic

  1. NC_003074.8 Reference assembly

    Range
    8997370..9001185
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. NM_113376.4NP_189108.1  AP2/B3-like transcriptional factor family protein [Arabidopsis thaliana]

    See identical proteins and their annotated locations for NP_189108.1

    Status: REVIEWED

    UniProtKB/Swiss-Prot
    A6N2M3, A6N2N0, A6N2P3, O23625, Q01593, Q1EQV9, Q56ZT2, Q570G9
    UniProtKB/TrEMBL
    A0A178VFQ9
    Conserved Domains (1) summary
    cd10015
    Location:570671
    BfiI_C_EcoRII_N_B3; DNA binding domains of BfiI, EcoRII and plant B3 proteins