PlantRegMap/PlantTFDB v5.0
Plant Transcription Factor Database
Previous version: v3.0 v4.0
Transcription Factor Information
Basic Information | Signature Domain | Sequence | 
Basic Information? help Back to Top
TF ID Potri.001G322700.3
Common NamePOPTR_0001s32990g
Taxonomic ID
Taxonomic Lineage
cellular organisms; Eukaryota; Viridiplantae; Streptophyta; Streptophytina; Embryophyta; Tracheophyta; Euphyllophyta; Spermatophyta; Magnoliophyta; Mesangiospermae; eudicotyledons; Gunneridae; Pentapetalae; rosids; fabids; Malpighiales; Salicaceae; Saliceae; Populus
Family B3
Protein Properties Length: 303aa    MW: 34079.4 Da    PI: 6.5874
Description B3 family protein
Gene Model
Gene Model ID Type Source Coding Sequence
Potri.001G322700.3genomeJGIView CDS
Signature Domain? help Back to Top
Signature Domain
No. Domain Score E-value Start End HMM Start HMM End
                  B3   1 ffkvltpsdvlksgrlvlpkkfaeeh..ggkkeesktltledesg.rsWevkliy..rkksgryvltkGWkeFvkangLkegDfvvFk 83 
                         f+k+l +sdv++++r++lpkk ae h   ++++e++ +++ d++g  +W++k++y  +++s++yvl+ ++ +Fv+a+gL+ gDf++  
                         99**************************666668899********9*********89999999***9.****************9754 PP

Protein Features ? help Back to Top
3D Structure
Database Entry ID E-value Start End InterPro ID Description
Gene3DG3DSA:2.40.330.102.0E-25113215IPR015300DNA-binding pseudobarrel domain
SuperFamilySSF1019362.16E-20121208IPR015300DNA-binding pseudobarrel domain
CDDcd100176.25E-24121206No hitNo description
PfamPF023622.3E-15123209IPR003340B3 DNA binding domain
PROSITE profilePS508639.051123227IPR003340B3 DNA binding domain
SMARTSM010192.0E-13123222IPR003340B3 DNA binding domain
Gene Ontology ? help Back to Top
GO Term GO Category GO Description
GO:0006355Biological Processregulation of transcription, DNA-templated
GO:0008284Biological Processpositive regulation of cell proliferation
GO:0009733Biological Processresponse to auxin
GO:0010116Biological Processpositive regulation of abscisic acid biosynthetic process
GO:0010262Biological Processsomatic embryogenesis
GO:0010373Biological Processnegative regulation of gibberellin biosynthetic process
GO:0048573Biological Processphotoperiodism, flowering
GO:0005634Cellular Componentnucleus
GO:0003700Molecular Functiontranscription factor activity, sequence-specific DNA binding
GO:0044212Molecular Functiontranscription regulatory region DNA binding
Sequence ? help Back to Top
Protein Sequence    Length: 303 aa     Download sequence    Send to blast
3D Structure ? help Back to Top
PDB ID Evalue Query Start Query End Hit Start Hit End Description
6j9b_A7e-561192171109B3 domain-containing transcription factor FUS3
6j9b_D7e-561192171109B3 domain-containing transcription factor FUS3
Search in ModeBase
Expression -- Description ? help Back to Top
Source Description
UniprotDEVELOPMENTAL STAGE: Expressed in developing embryo. At globular stage, expressed in all cells of the embryo proper. At heart stage, preferentially expressed in the protodermal tissue. In mature embryo, expressed in the provascular tissue, root cap and mature epidermis. Expressed in the aleurone layer in mature seed. Expressed in leaf primordia and shoot apical meristem (PubMed:22026387). {ECO:0000269|PubMed:14675433, ECO:0000269|PubMed:22026387, ECO:0000269|PubMed:9807814}.
UniprotTISSUE SPECIFICITY: Expressed in cotyledons and hypocotyls. {ECO:0000269|PubMed:22026387}.
Functional Description ? help Back to Top
Source Description
UniProtTranscription regulator involved in gene regulation during late embryogenesis. Its expression to the epidermis is sufficient to control foliar organ identity by regulating positively the synthesis abscisic acid (ABA) and negatively gibberellin production. Negatively regulates TTG1 in the embryo. Positively regulates the abundance of the ABI3 protein in the seed. Cooperates with KIN10 to regulate developmental phase transitions and lateral organ development and act both as positive regulators of abscisic acid (ABA) signaling during germination (PubMed:22026387, PubMed:22902692). {ECO:0000269|PubMed:14675433, ECO:0000269|PubMed:15363412, ECO:0000269|PubMed:22026387, ECO:0000269|PubMed:22902692}.
Binding Motif ? help Back to Top
Motif ID Method Source Motif file
MP00382DAPTransfer from AT3G26790Download
Motif logo
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
GenBankAC2156280.0AC215628.1 Populus trichocarpa clone POP027-K15, complete sequence.
Annotation -- Protein ? help Back to Top
Source Hit ID E-value Description
RefseqXP_024467489.10.0B3 domain-containing transcription factor FUS3 isoform X1
SwissprotQ9LW319e-84FUS3_ARATH; B3 domain-containing transcription factor FUS3
TrEMBLA0A2K2C7160.0A0A2K2C716_POPTR; Uncharacterized protein
STRINGPOPTR_0001s32990.10.0(Populus trichocarpa)
Best hit in Arabidopsis thaliana ? help Back to Top
Hit ID E-value Description
AT3G26790.14e-86B3 family protein
Publications ? help Back to Top
  1. Yang C, et al.
    VAL- and AtBMI1-mediated H2Aub initiate the switch from embryonic to postgerminative growth in Arabidopsis.
    Curr. Biol., 2013. 23(14): p. 1324-9
  2. Jia H,McCarty DR,Suzuki M
    Distinct roles of LAFL network genes in promoting the embryonic seedling fate in the absence of VAL repression.
    Plant Physiol., 2013. 163(3): p. 1293-305
  3. Kim HU, et al.
    Ectopic overexpression of castor bean LEAFY COTYLEDON2 (LEC2) in Arabidopsis triggers the expression of genes that encode regulators of seed maturation and oil body proteins in vegetative tissues.
    FEBS Open Bio, 2013. 4: p. 25-32
  4. Rikiishi K,Maekawa M
    Seed maturation regulators are related to the control of seed dormancy in wheat (Triticum aestivum L.).
    PLoS ONE, 2014. 9(9): p. e107618
  5. Yamamoto A, et al.
    Cell-by-cell developmental transition from embryo to post-germination phase revealed by heterochronic gene expression and ER-body formation in Arabidopsis leafy cotyledon mutants.
    Plant Cell Physiol., 2014. 55(12): p. 2112-25
  6. Shen Y,Devic M,Lepiniec L,Zhou DX
    Chromodomain, Helicase and DNA-binding CHD1 protein, CHR5, are involved in establishing active chromatin state of seed maturation genes.
    Plant Biotechnol. J., 2015. 13(6): p. 811-20
  7. Chen M, et al.
    TRANSPARENT TESTA GLABRA1 Regulates the Accumulation of Seed Storage Reserves in Arabidopsis.
    Plant Physiol., 2015. 169(1): p. 391-402
  8. Schneider A, et al.
    Potential targets of VIVIPAROUS1/ABI3-LIKE1 (VAL1) repression in developing Arabidopsis thaliana embryos.
    Plant J., 2016. 85(2): p. 305-19
  9. Baud S, et al.
    Deciphering the Molecular Mechanisms Underpinning the Transcriptional Control of Gene Expression by Master Transcriptional Regulators in Arabidopsis Seed.
    Plant Physiol., 2016. 171(2): p. 1099-112
  10. Zhang M,Cao X,Jia Q,Ohlrogge J
    FUSCA3 activates triacylglycerol accumulation in Arabidopsis seedlings and tobacco BY2 cells.
    Plant J., 2016. 88(1): p. 95-107
  11. Fatihi A, et al.
    Deciphering and modifying LAFL transcriptional regulatory network in seed for improving yield and quality of storage compounds.
    Plant Sci., 2016. 250: p. 198-204
  12. Chiu RS,Pan S,Zhao R,Gazzarrini S
    ABA-dependent inhibition of the ubiquitin proteasome system during germination at high temperature in Arabidopsis.
    Plant J., 2016. 88(5): p. 749-761
  13. Tang LP, et al.
    FUSCA3 interacting with LEAFY COTYLEDON2 controls lateral root formation through regulating YUCCA4 gene expression in Arabidopsis thaliana.
    New Phytol., 2017. 213(4): p. 1740-1754
  14. Duong S,Vonapartis E,Li CY,Patel S,Gazzarrini S
    The E3 ligase ABI3-INTERACTING PROTEIN2 negatively regulates FUSCA3 and plays a role in cotyledon development in Arabidopsis thaliana.
    J. Exp. Bot., 2017. 68(7): p. 1555-1567
  15. Han JD, et al.
    Evolutionary Analysis of the LAFL Genes Involved in the Land Plant Seed Maturation Program.
    Front Plant Sci, 2017. 8: p. 439
  16. Sun F, et al.
    Functional Characterization of TaFUSCA3, a B3-Superfamily Transcription Factor Gene in the Wheat.
    Front Plant Sci, 2017. 8: p. 1133
  17. Horstman A, et al.
    The BABY BOOM Transcription Factor Activates the LEC1-ABI3-FUS3-LEC2 Network to Induce Somatic Embryogenesis.
    Plant Physiol., 2017. 175(2): p. 848-857
  18. Chan A, et al.
    SnRK1 phosphorylation of FUSCA3 positively regulates embryogenesis, seed yield, and plant growth at high temperature in Arabidopsis.
    J. Exp. Bot., 2017. 68(15): p. 4219-4231
  19. Geilen K,Heilmann M,Hillmer S,Böhmer M
    WRKY43 regulates polyunsaturated fatty acid content and seed germination under unfavourable growth conditions.
    Sci Rep, 2017. 7(1): p. 14235
  20. Hanano A,Almousally I,Shaban M,Murphy DJ
    Arabidopsis plants exposed to dioxin result in a WRINKLED seed phenotype due to 20S proteasomal degradation of WRI1.
    J. Exp. Bot., 2018. 69(7): p. 1781-1794
  21. Chen N,Veerappan V,Abdelmageed H,Kang M,Allen RD
    HSI2/VAL1 Silences AGL15 to Regulate the Developmental Transition from Seed Maturation to Vegetative Growth in Arabidopsis.
    Plant Cell, 2018. 30(3): p. 600-619