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 Solyc02g083520.2.1
Common NameSPGB
Taxonomic ID
Taxonomic Lineage
cellular organisms; Eukaryota; Viridiplantae; Streptophyta; Streptophytina; Embryophyta; Tracheophyta; Euphyllophyta; Spermatophyta; Magnoliophyta; Mesangiospermae; eudicotyledons; Gunneridae; Pentapetalae; asterids; lamiids; Solanales; Solanaceae; Solanoideae; Solaneae; Solanum; Lycopersicon
Family bZIP
Protein Properties Length: 218aa    MW: 24273.8 Da    PI: 10.0935
Description bZIP family protein
Gene Model
Gene Model ID Type Source Coding Sequence
Solyc02g083520.2.1genomeITAGView CDS
Signature Domain? help Back to Top
Signature Domain
No. Domain Score E-value Start End HMM Start HMM End
              bZIP_1   4 lkrerrkqkNReAArrsRqRKkaeieeLeekvkeLeaeNkaLkkeleelkkev 56 
                         ++r  r++kNRe+A rsR+RK+a++ eLe +v+ L +eN +Lkk+ ++l+  +
                         68999****************************************99998655 PP

Protein Features ? help Back to Top
3D Structure
Database Entry ID E-value Start End InterPro ID Description
SMARTSM003383.1E-15144208IPR004827Basic-leucine zipper domain
PROSITE profilePS5021711.392146196IPR004827Basic-leucine zipper domain
PfamPF001702.5E-14148196IPR004827Basic-leucine zipper domain
Gene3DG3DSA: hitNo description
CDDcd147078.57E-22148195No hitNo description
SuperFamilySSF579594.91E-12148196No hitNo description
PROSITE patternPS000360152166IPR004827Basic-leucine zipper domain
Gene Ontology ? help Back to Top
GO Term GO Category GO Description
GO:0009911Biological Processpositive regulation of flower development
GO:0045893Biological Processpositive regulation of transcription, DNA-templated
GO:2000028Biological Processregulation of photoperiodism, flowering
GO:0005634Cellular Componentnucleus
GO:0003700Molecular Functiontranscription factor activity, sequence-specific DNA binding
GO:0043565Molecular Functionsequence-specific DNA binding
GO:0043621Molecular Functionprotein self-association
Sequence ? help Back to Top
Protein Sequence    Length: 218 aa     Download sequence    Send to blast
Expression -- UniGene ? help Back to Top
UniGene ID E-value Expressed in
Expression -- Description ? help Back to Top
Source Description
UniprotTISSUE SPECIFICITY: Highly expressed in shoot apex. {ECO:0000269|PubMed:16099979, ECO:0000269|PubMed:16099980, ECO:0000269|PubMed:25661797}.
Functional Description ? help Back to Top
Source Description
UniProtTranscription factor required for the transition to flowering promoted by FT. {ECO:0000269|PubMed:16099979, ECO:0000269|PubMed:16099980}.
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
GenBankEF1369190.0Solanum lycopersicum self-pruning G-box protein (SPGB) mRNA, complete cds
Annotation -- Protein ? help Back to Top
Source Hit ID E-value Description
RefseqNP_001234345.11e-159self-pruning G-box protein
SwissprotQ84JK21e-39FD_ARATH; Protein FD
TrEMBLA1YTV01e-158A1YTV0_SOLLC; Self-pruning G-box protein
STRINGSolyc02g083520.2.11e-159(Solanum lycopersicum)
Orthologous Group ? help Back to Top
LineageOrthologous Group IDTaxa NumberGene Number
Representative plantOGRP8739610
Best hit in Arabidopsis thaliana ? help Back to Top
Hit ID E-value Description
AT4G35900.11e-36bZIP family protein
Publications ? help Back to Top
  1. Pnueli L, et al.
    Tomato SP-interacting proteins define a conserved signaling system that regulates shoot architecture and flowering.
    Plant Cell, 2001. 13(12): p. 2687-702
  2. Wang Y,van der Hoeven RS,Nielsen R,Mueller LA,Tanksley SD
    Characteristics of the tomato nuclear genome as determined by sequencing undermethylated EcoRI digested fragments.
    Theor. Appl. Genet., 2005. 112(1): p. 72-84
  3. Lifschitz E, et al.
    The tomato FT ortholog triggers systemic signals that regulate growth and flowering and substitute for diverse environmental stimuli.
    Proc. Natl. Acad. Sci. U.S.A., 2006. 103(16): p. 6398-403
  4. Ho WW,Weigel D
    Structural features determining flower-promoting activity of Arabidopsis FLOWERING LOCUS T.
    Plant Cell, 2014. 26(2): p. 552-64
  5. Ji H, et al.
    Downregulation of leaf flavin content induces early flowering and photoperiod gene expression in Arabidopsis.
    BMC Plant Biol., 2014. 14: p. 237
  6. Li L, et al.
    Expression of turtle riboflavin-binding protein represses mitochondrial electron transport gene expression and promotes flowering in Arabidopsis.
    BMC Plant Biol., 2014. 14: p. 381
  7. Sussmilch FC, et al.
    Pea VEGETATIVE2 Is an FD Homolog That Is Essential for Flowering and Compound Inflorescence Development.
    Plant Cell, 2015. 27(4): p. 1046-60
  8. Khan M, et al.
    Repression of Lateral Organ Boundary Genes by PENNYWISE and POUND-FOOLISH Is Essential for Meristem Maintenance and Flowering in Arabidopsis.
    Plant Physiol., 2015. 169(3): p. 2166-86
  9. Andrés F, et al.
    Floral Induction in Arabidopsis by FLOWERING LOCUS T Requires Direct Repression of BLADE-ON-PETIOLE Genes by the Homeodomain Protein PENNYWISE.
    Plant Physiol., 2015. 169(3): p. 2187-99
  10. Kawamoto N,Endo M,Araki T
    Expression of a kinase-dead form of CPK33 involved in florigen complex formation causes delayed flowering.
    Plant Signal Behav, 2015. 10(12): p. e1086856
  11. Zhang L,Yu H,Lin S,Gao Y
    Molecular Characterization of FT and FD Homologs from Eriobotrya deflexa Nakai forma koshunensis.
    Front Plant Sci, 2016. 7: p. 8
  12. Hou CJ,Yang CH
    Comparative analysis of the pteridophyte Adiantum MFT ortholog reveals the specificity of combined FT/MFT C and N terminal interaction with FD for the regulation of the downstream gene AP1.
    Plant Mol. Biol., 2016. 91(4-5): p. 563-79
  13. Jung JH,Lee HJ,Ryu JY,Park CM
    SPL3/4/5 Integrate Developmental Aging and Photoperiodic Signals into the FT-FD Module in Arabidopsis Flowering.
    Mol Plant, 2016. 9(12): p. 1647-1659
  14. Jang S,Li HY,Kuo ML
    Ectopic expression of Arabidopsis FD and FD PARALOGUE in rice results in dwarfism with size reduction of spikelets.
    Sci Rep, 2017. 7: p. 44477