PlantTFDB
PlantRegMap/PlantTFDB v5.0
Plant Transcription Factor Database
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(e.g., LFY)
Transcription Factor Information
Basic Information | Signature Domain | Sequence | 
Basic Information? help Back to Top
TF ID AT1G72050.1
Common NameF28P5.6, TFIIIA
Organism
Arabidopsis thaliana
Taxonomic ID
Taxonomic Lineage
cellular organisms; Eukaryota; Viridiplantae; Streptophyta; Streptophytina; Embryophyta; Tracheophyta; Euphyllophyta; Spermatophyta; Magnoliophyta; Mesangiospermae; eudicotyledons; Gunneridae; Pentapetalae; rosids; malvids; Brassicales; Brassicaceae; Camelineae; Arabidopsis
Family C2H2
Protein Properties Length: 324aa    MW: 36526.8 Da    PI: 8.0203
Description transcription factor IIIA
Gene Model
Gene Model ID Type Source Coding Sequence
AT1G72050.1genomeTAIRView CDS
Signature Domain? help Back to Top
Signature Domain
No. Domain Score E-value Start End HMM Start HMM End
1zf-C2H215.84e-05630123
                 EEET..TTTEEESSHHHHHHHHHHT CS
      zf-C2H2  1 ykCp..dCgksFsrksnLkrHirtH 23
                 ++C   dC  s++rk++L+rH+ tH
  AT1G72050.1  6 FTCYvdDCAASYRRKDHLNRHLLTH 30
                 799999*****************99 PP
2zf-C2H222.33.4e-07128151223
                  EET..TTTEEESSHHHHHHHHHHT CS
      zf-C2H2   2 kCp..dCgksFsrksnLkrHirtH 23 
                  +C+   Cgk F+ +s+L++H+ +H
  AT1G72050.1 128 VCKeiGCGKAFKYPSQLQKHQDSH 151
                  69999****************998 PP
3zf-C2H219.33.1e-06218242223
                  EET..TTTEEESSHHHHHHHHHH.T CS
      zf-C2H2   2 kCp..dCgksFsrksnLkrHirt.H 23 
                  kC+   C+ +Fs  snL++H++  H
  AT1G72050.1 218 KCEveGCSSTFSKASNLQKHMKAvH 242
                  79999****************9888 PP
Protein Features ? help Back to Top
3D Structure
Database Entry ID E-value Start End InterPro ID Description
Gene3DG3DSA:3.30.160.604.0E-8332IPR013087Zinc finger C2H2-type/integrase DNA-binding domain
SuperFamilySSF576671.77E-7630No hitNo description
SMARTSM003550.11630IPR015880Zinc finger, C2H2-like
PROSITE profilePS501579.91635IPR007087Zinc finger, C2H2
PROSITE patternPS000280830IPR007087Zinc finger, C2H2
SuperFamilySSF576676.13E-51663No hitNo description
SMARTSM003550.893560IPR015880Zinc finger, C2H2-like
PROSITE profilePS501579.7233565IPR007087Zinc finger, C2H2
PROSITE patternPS0002803760IPR007087Zinc finger, C2H2
SuperFamilySSF576671.77E-7122151No hitNo description
Gene3DG3DSA:3.30.160.601.0E-6122151IPR013087Zinc finger C2H2-type/integrase DNA-binding domain
PROSITE profilePS5015710.533127156IPR007087Zinc finger, C2H2
SMARTSM003550.0063127151IPR015880Zinc finger, C2H2-like
PROSITE patternPS000280129151IPR007087Zinc finger, C2H2
SMARTSM003550.95159184IPR015880Zinc finger, C2H2-like
PROSITE patternPS000280161184IPR007087Zinc finger, C2H2
SMARTSM0035522187208IPR015880Zinc finger, C2H2-like
SuperFamilySSF576674.84E-8198252No hitNo description
SMARTSM003555.3E-4217242IPR015880Zinc finger, C2H2-like
PROSITE profilePS5015712.258217247IPR007087Zinc finger, C2H2
Gene3DG3DSA:3.30.160.601.8E-7218242IPR013087Zinc finger C2H2-type/integrase DNA-binding domain
PROSITE patternPS000280219242IPR007087Zinc finger, C2H2
Gene3DG3DSA:3.30.160.605.1E-5243269IPR013087Zinc finger C2H2-type/integrase DNA-binding domain
SMARTSM003555.7248274IPR015880Zinc finger, C2H2-like
PROSITE patternPS000280250274IPR007087Zinc finger, C2H2
Gene Ontology ? help Back to Top
GO Term GO Category GO Description
GO:0006355Biological Processregulation of transcription, DNA-templated
GO:0007275Biological Processmulticellular organism development
GO:0005730Cellular Componentnucleolus
GO:0003700Molecular Functiontranscription factor activity, sequence-specific DNA binding
GO:0008097Molecular Function5S rRNA binding
GO:0008270Molecular Functionzinc ion binding
GO:0080084Molecular Function5S rDNA binding
Plant Ontology ? help Back to Top
PO Term PO Category PO Description
PO:0000005anatomycultured plant cell
PO:0000013anatomycauline leaf
PO:0000037anatomyshoot apex
PO:0000230anatomyinflorescence meristem
PO:0000293anatomyguard cell
PO:0008019anatomyleaf lamina base
PO:0009005anatomyroot
PO:0009006anatomyshoot system
PO:0009009anatomyplant embryo
PO:0009010anatomyseed
PO:0009025anatomyvascular leaf
PO:0009029anatomystamen
PO:0009030anatomycarpel
PO:0009031anatomysepal
PO:0009032anatomypetal
PO:0009046anatomyflower
PO:0009047anatomystem
PO:0009052anatomyflower pedicel
PO:0020030anatomycotyledon
PO:0020038anatomypetiole
PO:0020094anatomyplant egg cell
PO:0020100anatomyhypocotyl
PO:0020137anatomyleaf apex
PO:0025022anatomycollective leaf structure
PO:0025281anatomypollen
PO:0001054developmental stagevascular leaf senescent stage
PO:0001078developmental stageplant embryo cotyledonary stage
PO:0001081developmental stagemature plant embryo stage
PO:0001185developmental stageplant embryo globular stage
PO:0004507developmental stageplant embryo bilateral stage
PO:0007064developmental stageLP.12 twelve leaves visible stage
PO:0007095developmental stageLP.08 eight leaves visible stage
PO:0007098developmental stageLP.02 two leaves visible stage
PO:0007103developmental stageLP.10 ten leaves visible stage
PO:0007115developmental stageLP.04 four leaves visible stage
PO:0007123developmental stageLP.06 six leaves visible stage
PO:0007611developmental stagepetal differentiation and expansion stage
PO:0007616developmental stageflowering stage
Sequence ? help Back to Top
Protein Sequence    Length: 324 aa     Download sequence    Send to blast
MFERSFTCYV DDCAASYRRK DHLNRHLLTH KGKLFKCPKE NCKSEFSVQG NVGRHVKKYH  60
SNDNRDKDNT GLGDGDKDNT CKGDDDKEKS GSGGCEKENE GNGGSGKDNN GNGDSQPAEC  120
STGQKQVVCK EIGCGKAFKY PSQLQKHQDS HVKLDSVEAF CSEPGCMKYF TNEECLKSHI  180
RSCHQHINCE ICGSKHLKKN IKRHLRTHDE DSSPGEIKCE VEGCSSTFSK ASNLQKHMKA  240
VHDDIRPFVC GFPGCGMRFA YKHVRNKHEN SGYHVYTCGD FVETDEDFTS RPRGGLKRKQ  300
VTAEMLVRKR VMPPRFDAEE HETC
Expression -- UniGene ? help Back to Top
UniGene ID E-value Expressed in
At.668540.0flower
Expression -- Microarray ? help Back to Top
Source ID E-value
GEO1453374370.0
Genevisible256344_at0.0
Expression AtlasAT1G72050-
AtGenExpressAT1G72050-
ATTED-IIAT1G72050-
Expression -- Description ? help Back to Top
Source Description
UniprotDEVELOPMENTAL STAGE: Both isoforms 1 and 2 transcripts are expressed in seedlings and both TFIIIA and TFIIIA-C are present at similar ratios in 10-day-old seedlings (at protein level). In correlation with the reorganization of 5S rDNA chromatin to a mature state, full-length isoform 1 protein TFIIIA with transcriptional activity accumulates and permits de novo transcription of 5S rRNA. Isoforms 1 and 2 transcripts accumulate in various tissues of the reproductive phase, including flowers and siliques, but only isoform 2 is present in mature seeds. In flowers, both TFIIIA and TFIIIA-C are present at similar ratios (at protein level). Very low amounts of TFIIIA are found in extracts from fresh siliques compared to TFIIIA-C. The amount of full-length TFIIIA protein progressively increases from fresh siliques to seeds concomitant with lower proportions of the shorter TFIIIA-C protein (at protein level) thus leading to 5S rRNA accumulation in the seed. {ECO:0000269|PubMed:22353599}.
UniprotTISSUE SPECIFICITY: Expressed in seedlings, flowers, siliques and seeds. {ECO:0000269|PubMed:22353599}.
Functional Description ? help Back to Top
Source Description
TAIREncodes a transcriptional factor TFIIIA required for transcription of 5S rRNA gene. 5S rRNA is the smallest constituent of the ribosome. Work on one of the gene models AT1G72050.2 showed that it encodes a protein with nine Cys(2)-His(2)-type zinc fingers, a characteristic feature of TFIIIA proteins. AT1G72050.2 also contains a 23 amino acid spacer between fingers 1 and 2, a 66 amino acid spacer between fingers 4 and 5, and a 50 amino acid non-finger C-terminal tail. in vitro assay demonstrated that AT1g72050.2 binds to 5S rDNA and efficiently stimulates the transcription of 5S rRNA. AT1g72050.2 also binds to 5S rRNA in vitro. AT1g72050.2 is located at several nuclear foci including the nucleolus and is absent from the cytoplasm.
UniProtEssential protein (PubMed:22353599). Isoform 1 is a transcription activator the binds both 5S rDNA and 5S rRNA and stimulates the transcription of 5S rRNA gene (PubMed:12711688, PubMed:22353599). Isoform 1 regulates 5S rRNA levels during development (PubMed:22353599). {ECO:0000269|PubMed:12711688, ECO:0000269|PubMed:22353599}.
Function -- GeneRIF ? help Back to Top
  1. The authors show that Arabidopsis thaliana L5 and TFIIIA also bind potato spindle tuber viroid (+) RNA in vitro with the same affinity as they bind 5S rRNA, whereas the affinity for a chloroplastic viroid is significantly lower.
    [PMID: 21153748]
  2. Transcriptional and post-transcriptional control of TFIIIA transcripts as well as proteolytic cleavage of the TFIIIA protein regulate the quantities of 5S rRNA.
    [PMID: 22353599]
Binding Motif ? help Back to Top
Motif ID Method Source Motif file
MP00229DAP27203113Download
Motif logo
Cis-element ? help Back to Top
SourceLink
PlantRegMapAT1G72050.1
Regulation -- PlantRegMap ? help Back to Top
Source Upstream Regulator Target Gene
PlantRegMapRetrieveRetrieve
Interaction ? help Back to Top
Source Intact With
IntActSearch Q84MZ4
Phenotype -- Disruption Phenotype ? help Back to Top
Source Description
UniProtDISRUPTION PHENOTYPE: Lethal. {ECO:0000269|PubMed:22353599}.
Phenotype -- Mutation ? help Back to Top
Source ID
T-DNA ExpressAT1G72050
Annotation -- Nucleotide ? help Back to Top
Source Hit ID E-value Description
GenBankAY0542250.0AY054225.1 Arabidopsis thaliana At1g72050/F28P5_6 mRNA, complete cds.
GenBankAY0660420.0AY066042.1 Arabidopsis thaliana At1g72050/F28P5_6 mRNA, complete cds.
Annotation -- Protein ? help Back to Top
Source Hit ID E-value Description
RefseqNP_001322779.10.0transcription factor IIIA
RefseqNP_565033.10.0transcription factor IIIA
SwissprotQ84MZ40.0TF3A_ARATH; Transcription factor IIIA
TrEMBLA0A178WFL70.0A0A178WFL7_ARATH; TFIIIA
TrEMBLA0A1P8AV270.0A0A1P8AV27_ARATH; Transcription factor IIIA
STRINGAT1G72050.20.0(Arabidopsis thaliana)
Publications ? help Back to Top
  1. Mathieu O, et al.
    Identification and characterization of transcription factor IIIA and ribosomal protein L5 from Arabidopsis thaliana.
    Nucleic Acids Res., 2003. 31(9): p. 2424-33
    [PMID:12711688]
  2. Yamada K, et al.
    Empirical analysis of transcriptional activity in the Arabidopsis genome.
    Science, 2003. 302(5646): p. 842-6
    [PMID:14593172]
  3. Gong W, et al.
    Genome-wide ORFeome cloning and analysis of Arabidopsis transcription factor genes.
    Plant Physiol., 2004. 135(2): p. 773-82
    [PMID:15208423]
  4. Englbrecht CC,Schoof H,B
    Conservation, diversification and expansion of C2H2 zinc finger proteins in the Arabidopsis thaliana genome.
    BMC Genomics, 2004. 5(1): p. 39
    [PMID:15236668]
  5. Sahr T,Voigt G,Paretzke HG,Schramel P,Ernst D
    Caesium-affected gene expression in Arabidopsis thaliana.
    New Phytol., 2005. 165(3): p. 747-54
    [PMID:15720685]
  6. Chung BY,Simons C,Firth AE,Brown CM,Hellens RP
    Effect of 5'UTR introns on gene expression in Arabidopsis thaliana.
    BMC Genomics, 2006. 7: p. 120
    [PMID:16712733]
  7. Xu J,Yang JY,Niu QW,Chua NH
    Arabidopsis DCP2, DCP1, and VARICOSE form a decapping complex required for postembryonic development.
    Plant Cell, 2006. 18(12): p. 3386-98
    [PMID:17158604]
  8. Fu Y, et al.
    Alternative splicing of anciently exonized 5S rRNA regulates plant transcription factor TFIIIA.
    Genome Res., 2009. 19(5): p. 913-21
    [PMID:19211543]
  9. Wuest SE, et al.
    Arabidopsis female gametophyte gene expression map reveals similarities between plant and animal gametes.
    Curr. Biol., 2010. 20(6): p. 506-12
    [PMID:20226671]
  10. Eiras M,Nohales MA,Kitajima EW,Flores R,Dar
    Ribosomal protein L5 and transcription factor IIIA from Arabidopsis thaliana bind in vitro specifically Potato spindle tuber viroid RNA.
    Arch. Virol., 2011. 156(3): p. 529-33
    [PMID:21153748]
  11. Arabidopsis Interactome Mapping Consortium
    Evidence for network evolution in an Arabidopsis interactome map.
    Science, 2011. 333(6042): p. 601-7
    [PMID:21798944]
  12. Klopffleisch K, et al.
    Arabidopsis G-protein interactome reveals connections to cell wall carbohydrates and morphogenesis.
    Mol. Syst. Biol., 2011. 7: p. 532
    [PMID:21952135]
  13. Layat E, et al.
    Transcript levels, alternative splicing and proteolytic cleavage of TFIIIA control 5S rRNA accumulation during Arabidopsis thaliana development.
    Plant J., 2012. 71(1): p. 35-44
    [PMID:22353599]
  14. Layat E,Probst AV,Tourmente S
    Structure, function and regulation of Transcription Factor IIIA: From Xenopus to Arabidopsis.
    Biochim. Biophys. Acta, 2013 Mar-Apr. 1829(3-4): p. 274-82
    [PMID:23142779]