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    HB20 homeobox protein 20 [ Arabidopsis thaliana (thale cress) ]

    Gene ID: 821232, updated on 18-Sep-2024

    Summary

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    Official Symbol
    HB20
    Official Full Name
    homeobox protein 20
    Primary source
    TAIR:AT3G01220
    Locus tag
    AT3G01220
    See related
    Araport:AT3G01220
    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
    ATHB20; homeobox protein 20; T4P13.9; T4P13_9
    Summary
    Encodes a homeodomain leucine zipper class I (HD-Zip I) protein. Expressed during seed germination in the micropylar endosperm and in the root cap, and increases ABA sensitivity and seed dormancy when mutated.
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    Genomic context

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    See HB20 in Genome Data Viewer
    Location:
    chromosome: 3
    Exon count:
    3
    Sequence:
    Chromosome: 3; NC_003074.8 (73307..75539)

    Chromosome 3 - NC_003074.8Genomic Context describing neighboring genes Neighboring gene Peroxidase superfamily protein Neighboring gene ncRNA Neighboring gene PPDK regulatory protein 2 Neighboring gene RNA-binding (RRM/RBD/RNP motifs) family protein Neighboring gene splicing regulatory glutamine/lysine-rich-like protein Neighboring gene splicing regulatory glutamine/lysine-rich-like protein

    Genomic regions, transcripts, and products

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    Genomic Sequence:
    NC_003074.8

    Go to nucleotide: Graphics FASTA GenBank

    Bibliography

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    Related articles in PubMed

    1. Gene expression profiling identifies two regulatory genes controlling dormancy and ABA sensitivity in Arabidopsis seeds. Barrero JM, et al. Plant J, 2010 Feb. PMID 19947978
    2. Auxin signaling in Arabidopsis leaf vascular development. Mattsson J, et al. Plant Physiol, 2003 Mar. PMID 12644682, Free PMC Article
    3. Regulation of leaf maturation by chromatin-mediated modulation of cytokinin responses. Efroni I, et al. Dev Cell, 2013 Feb 25. PMID 23449474, Free PMC Article
    4. Arabidopsis transcription factors: genome-wide comparative analysis among eukaryotes. Riechmann JL, et al. Science, 2000 Dec 15. PMID 11118137
    5. CrY2H-seq: a massively multiplexed assay for deep-coverage interactome mapping. Wanamaker SA, et al. Nat Methods, 2017 Aug. PMID 28650476, Free PMC Article

    See all (7) citations in PubMed

    GeneRIFs: Gene References Into Functions

    What's a GeneRIF?
    1. ATHB20 is expressed during seed germination in the micropylar endosperm and in the root cap, and increases ABA sensitivity and seed dormancy when mutated. [ATHB20]
      Title: Gene expression profiling identifies two regulatory genes controlling dormancy and ABA sensitivity in Arabidopsis seeds.
    Submit: New GeneRIF Correction

    Interactions

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    Products Interactant Other Gene Complex Source Pubs Description

    General gene information

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    NM_110988.3

    Gene Ontology Provided by TAIR

    Function Evidence Code Pubs
    enables DNA-binding transcription factor activity ISS
    Inferred from Sequence or Structural Similarity
    more info
    		 PubMed 
    enables DNA-binding transcription factor activity, RNA polymerase II-specific IEA
    Inferred from Electronic Annotation
    more info
    		  
    enables protein binding IPI
    Inferred from Physical Interaction
    more info
    		 PubMed 
    enables sequence-specific DNA binding IEA
    Inferred from Electronic Annotation
    more info
    		  
    Process Evidence Code Pubs
    acts_upstream_of_or_within response to auxin IEP
    Inferred from Expression Pattern
    more info
    		 PubMed 
    Component Evidence Code Pubs
    located_in nucleus ISM
    Inferred from Sequence Model
    more info
    		  

    General protein information

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    Preferred Names
    homeobox protein 20
    NP_186771.1
    • homeobox protein 20 (HB20); FUNCTIONS IN: DNA binding, sequence-specific DNA binding transcription factor activity; INVOLVED IN: response to auxin stimulus, regulation of transcription, DNA-dependent; LOCATED IN: nucleus; EXPRESSED IN: 11 plant structures; EXPRESSED DURING: E expanded cotyledon stage; CONTAINS InterPro DOMAIN/s: Homeobox, conserved site (InterPro:IPR017970), Homeobox (InterPro:IPR001356), Homeodomain-like (InterPro:IPR009057), Helix-turn-helix motif, lambda-like repressor (InterPro:IPR000047), Leucine zipper, homeobox-associated (InterPro:IPR003106), Homeodomain-related (InterPro:IPR012287); BEST Arabidopsis thaliana protein match is: homeobox 3 (TAIR:AT5G15150.1); Has 9615 Blast hits to 9578 proteins in 515 species: Archae - 0; Bacteria - 1; Metazoa - 7277; Fungi - 141; Plants - 2025; Viruses - 4; Other Eukaryotes - 167 (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
      73307..75539
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)

    mRNA and Protein(s)

    1. NM_110988.3 → NP_186771.1  homeobox protein 20 [Arabidopsis thaliana]

      See identical proteins and their annotated locations for NP_186771.1

      Status: REVIEWED

      UniProtKB/Swiss-Prot
      Q058J7, Q8LAT0, Q9MAD1
      UniProtKB/TrEMBL
      A0A178VB41
      Conserved Domains (2) summary
      smart00389
      Location:87 → 140
      HOX; Homeodomain
      pfam02183
      Location:142 → 183
      HALZ; Homeobox associated leucine zipper
    Nucleotide Protein
    Heading Accession and Version
    Protein Accession Links
    GenPept Link UniProtKB Link
    Q8LAT0.2

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