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EMBO J. 1991 Jul; 10(7): 1809–1816. PMCID: PMC452855 A Tcell specific TCR delta DNA binding protein is a member of the human GATA family. V Joulin , D Bories , J F Eléouet , M C Labastie , S Chrétien , M G Mattéi , and P H Roméo INSERM U.91, Hôpital Henri Mondor, Créteil, France. Copyright notice This article has been cited by other articles in PMC. Abstract The human GATA1, hGATA1 (previously called NFE1, GF1 or Eryf1), a major sequencespecific DNA binding protein of the erythrocytic lineage, is a member of a zincfinger family of DNAbinding proteins. We report here the cloning of a human cDNA for a new member of this family. This member, called hGATA3, has 85% amino acid homology with hGATA1 in the DNAbinding domain and no homology elsewhere in the protein. Unlike hGATA1, hGATA3 is not localized on the X chromosome and we map it to the 10p15 band of the human genome. Northern blot analysis indicates that this factor is a Tcell specific transcription factor, present before activation and upregulated during Tcell activation. The encoded hGATA3 protein, made in an in vitro transcriptiontranslation assay, binds the WGATAR motif present in the human Tcell receptor (TCR) delta gene enhancer and, by transfection in HeLa cells, we show that hGATA3 can transactivate this TCR delta gene enhancer. Interestingly this enhancer binds and is also transactivated by hGATA1. Conversely, the promoter of the human glycophorin B (GPB), which is erythroidspecific and contains two WGATAR motifs, binds and is transactivated by hGATA1 and, to a lesser extent, by hGATA3. These results indicate that the activation of specific genes by hGATA1 or hGATA3 is partly governed by the lineage expression of these two factors during haematopoiesis and that, in the Tcell lineage, hGATA3 binds the human TCR delta gene enhancer and is involved in its expression. Full text Full text is available as a scanned copy of the original print version. Get a printable copy (PDF file) of the complete article (1.6M), or click on a page image below to browse page by page. Links to PubMed are also available for Selected References . 1809 1810 1811 1812 1813

A T-cell Specific TCR Delta DNA Binding Protein is a Member of the Human GATA Family

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  • 28/4/2015 ATcellspecificTCRdeltaDNAbindingproteinisamemberofthehumanGATAfamily.

    http://www.ncbi.nlm.nih.gov/pmc/articles/PMC452855/ 1/4

    EMBOJ.1991Jul10(7):18091816. PMCID:PMC452855

    ATcellspecificTCRdeltaDNAbindingproteinisamemberofthehumanGATAfamily.VJoulin,DBories,JFElouet,MCLabastie,SChrtien,MGMatti,andPHRomo

    INSERMU.91,HpitalHenriMondor,Crteil,France.

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    ThisarticlehasbeencitedbyotherarticlesinPMC.

    Abstract

    ThehumanGATA1,hGATA1(previouslycalledNFE1,GF1orEryf1),amajorsequencespecificDNAbindingproteinoftheerythrocyticlineage,isamemberofazincfingerfamilyofDNAbindingproteins.WereportherethecloningofahumancDNAforanewmemberofthisfamily.Thismember,calledhGATA3,has85%aminoacidhomologywithhGATA1intheDNAbindingdomainandnohomologyelsewhereintheprotein.UnlikehGATA1,hGATA3isnotlocalizedontheXchromosomeandwemapittothe10p15bandofthehumangenome.NorthernblotanalysisindicatesthatthisfactorisaTcellspecifictranscriptionfactor,presentbeforeactivationandupregulatedduringTcellactivation.TheencodedhGATA3protein,madeinaninvitrotranscriptiontranslationassay,bindstheWGATARmotifpresentinthehumanTcellreceptor(TCR)deltageneenhancerand,bytransfectioninHeLacells,weshowthathGATA3cantransactivatethisTCRdeltageneenhancer.InterestinglythisenhancerbindsandisalsotransactivatedbyhGATA1.Conversely,thepromoterofthehumanglycophorinB(GPB),whichiserythroidspecificandcontainstwoWGATARmotifs,bindsandistransactivatedbyhGATA1and,toalesserextent,byhGATA3.TheseresultsindicatethattheactivationofspecificgenesbyhGATA1orhGATA3ispartlygovernedbythelineageexpressionofthesetwofactorsduringhaematopoiesisandthat,intheTcelllineage,hGATA3bindsthehumanTCRdeltageneenhancerandisinvolvedinitsexpression.

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    Fulltextisavailableasascannedcopyoftheoriginalprintversion.Getaprintablecopy(PDFfile)ofthecompletearticle(1.6M),orclickonapageimagebelowtobrowsepagebypage.LinkstoPubMedarealsoavailableforSelectedReferences.

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  • 28/4/2015 ATcellspecificTCRdeltaDNAbindingproteinisamemberofthehumanGATAfamily.

    http://www.ncbi.nlm.nih.gov/pmc/articles/PMC452855/ 2/4

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    SelectedReferences

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