PlantRegMap/PlantTFDB v5.0
Plant Transcription Factor Database
Transcription Factor Information
Basic Information | Signature Domain | Sequence | 
Basic Information? help Back to Top
TF ID GSBRNA2T00021575001
Common NameGSBRNA2T00021575001
Taxonomic ID
Taxonomic Lineage
cellular organisms; Eukaryota; Viridiplantae; Streptophyta; Streptophytina; Embryophyta; Tracheophyta; Euphyllophyta; Spermatophyta; Magnoliophyta; Mesangiospermae; eudicotyledons; Gunneridae; Pentapetalae; rosids; malvids; Brassicales; Brassicaceae; Brassiceae; Brassica
Family HB-other
Protein Properties Length: 133aa    MW: 15989.9 Da    PI: 6.8798
Description HB-other family protein
Gene Model
Gene Model ID Type Source Coding Sequence
GSBRNA2T00021575001genomeGenoscopeView CDS
Signature Domain? help Back to Top
Signature Domain
No. Domain Score E-value Start End HMM Start HMM End
             Homeobox   1 rrkRttftkeqleeLeelFeknrypsaeereeLAkklgLterqVkvWFqNrRakek 56 
                          +++ +++t+ q++eLe++F+++++p+ ++r+eL+++l+L+  qVk+WFqN+R+++k
                          678899***********************************************998 PP

Protein Features ? help Back to Top
3D Structure
Database Entry ID E-value Start End InterPro ID Description
PROSITE profilePS5007116.87660120IPR001356Homeobox domain
SMARTSM003891.2E-1761124IPR001356Homeobox domain
CDDcd000861.35E-1663118No hitNo description
PfamPF000461.6E-1863118IPR001356Homeobox domain
PROSITE patternPS00027095118IPR017970Homeobox, conserved site
Gene Ontology ? help Back to Top
GO Term GO Category GO Description
GO:0006355Biological Processregulation of transcription, DNA-templated
GO:0005634Cellular Componentnucleus
GO:0043565Molecular Functionsequence-specific DNA binding
Sequence ? help Back to Top
Protein Sequence    Length: 133 aa     Download sequence    Send to blast
Expression -- Description ? help Back to Top
Source Description
UniprotDEVELOPMENTAL STAGE: First expressed in the apical cell after the first asymmetric division of the zygote. Expressed in all proembryo cells until the eight-cell stage, and then restricted to the protoderm in the 16-cell proembryo. Not detected in the torpedo stage, but reappeared later in the L1 layer of the shoot apical meristem in the mature embryo. After germination, the L1 layer-specific expression pattern is maintained in the vegetative shoot apical meristem, inflorescence, floral meristems, and the young floral organ primordia. Finally, expressed in the protoderm of the ovule primordia and integuments and gradually restricted to the endothelium surrounding the embryo sac. {ECO:0000269|PubMed:10571886, ECO:0000269|PubMed:8989876}.
Functional Description ? help Back to Top
Source Description
UniProtProbable transcription factor involved in cell specification and pattern formation during embryogenesis. Binds to the L1 box DNA sequence 5'-TAAATG[CT]A-3'. Plays a role in maintaining the identity of L1 cells, possibly by interacting with their L1 box or other target-gene promoters. Functionally redundant to PDF2. {ECO:0000269|PubMed:11439135, ECO:0000269|PubMed:12505995}.
Cis-element ? help Back to Top
Regulation -- PlantRegMap ? help Back to Top
Source Upstream Regulator Target Gene
Annotation -- Nucleotide ? help Back to Top
Source Hit ID E-value Description
GenBankAK2299701e-128AK229970.1 Arabidopsis thaliana mRNA for L1 specific homeobox gene ATML1/ovule-specific homeobox protein A20, complete cds, clone: RAFL22-43-B20.
GenBankAY0911041e-128AY091104.1 Arabidopsis thaliana putative L1-specific homeobox gene ATML1/ovule-specific homeobox protein A20 (At4g21750) mRNA, complete cds.
GenBankAY1504911e-128AY150491.1 Arabidopsis thaliana putative L1-specific homeobox gene ATML1/ovule-specific homeobox protein A20 (At4g21750) mRNA, complete cds.
Annotation -- Protein ? help Back to Top
Source Hit ID E-value Description
RefseqXP_013598423.13e-81PREDICTED: homeobox-leucine zipper protein MERISTEM L1
RefseqXP_013598424.13e-81PREDICTED: homeobox-leucine zipper protein MERISTEM L1
RefseqXP_013598425.13e-81PREDICTED: homeobox-leucine zipper protein MERISTEM L1
RefseqXP_013696499.14e-81homeobox-leucine zipper protein MERISTEM L1
RefseqXP_013696501.14e-81homeobox-leucine zipper protein MERISTEM L1
RefseqXP_013696503.14e-81homeobox-leucine zipper protein MERISTEM L1 isoform X2
RefseqXP_018477464.14e-81PREDICTED: homeobox-leucine zipper protein MERISTEM L1
RefseqXP_022546647.14e-81homeobox-leucine zipper protein MERISTEM L1 isoform X1
RefseqXP_022546648.14e-81homeobox-leucine zipper protein MERISTEM L1
SwissprotQ8RWU44e-78ATML1_ARATH; Homeobox-leucine zipper protein MERISTEM L1
TrEMBLA0A078GCK08e-95A0A078GCK0_BRANA; BnaC07g30910D protein
STRINGBo7g107550.11e-80(Brassica oleracea)
Orthologous Group ? help Back to Top
LineageOrthologous Group IDTaxa NumberGene Number
Best hit in Arabidopsis thaliana ? help Back to Top
Hit ID E-value Description
AT4G21750.22e-80HD-ZIP family protein
Publications ? help Back to Top
  1. Duarte JM, et al.
    Expression pattern shifts following duplication indicative of subfunctionalization and neofunctionalization in regulatory genes of Arabidopsis.
    Mol. Biol. Evol., 2006. 23(2): p. 469-78
  2. Takada S,Takada N,Yoshida A
    Induction of epidermal cell fate in Arabidopsis shoots.
    Plant Signal Behav, 2013. 8(11): p. e26236
  3. Chalhoub B, et al.
    Plant genetics. Early allopolyploid evolution in the post-Neolithic Brassica napus oilseed genome.
    Science, 2014. 345(6199): p. 950-3
  4. Liang Z,Brown RC,Fletcher JC,Opsahl-Sorteberg HG
    Calpain-Mediated Positional Information Directs Cell Wall Orientation to Sustain Plant Stem Cell Activity, Growth and Development.
    Plant Cell Physiol., 2015. 56(9): p. 1855-66
  5. Katagiri Y, et al.
    The coordination of ploidy and cell size differs between cell layers in leaves.
    Development, 2016. 143(7): p. 1120-5
  6. Seeliger I, et al.
    The AP2-type transcription factors DORNRĂ–SCHEN and DORNRĂ–SCHEN-LIKE promote G1/S transition.
    Mol. Genet. Genomics, 2016. 291(5): p. 1835-49
  7. Schwarz EM,Roeder AH
    Transcriptomic Effects of the Cell Cycle Regulator LGO in Arabidopsis Sepals.
    Front Plant Sci, 2016. 7: p. 1744
  8. Meyer HM, et al.
    Fluctuations of the transcription factor ATML1 generate the pattern of giant cells in the Arabidopsis sepal.
    Elife, 2018.