YETIYeast Exploration Tool Integrator
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Summary: Yeast Exploration Tool Integrator (YETI) is a novel bioinformatics tool for the integrated visualization and analysis of functional genomic data sets from the budding yeast Saccharomyces cerevisiae. Availability: YETI is freely available for use o
BIOINFORMATICSAPPLICATIONSNOTE
Vol.20no.22004,pages284–285DOI:
10.1093/bioinformatics/btg408
YETI:YeastExplorationToolIntegrator
R.J.Orton1,W.I.Sellers2andD.L.Gerloff1,
1Institute
ofCellandMolecularBiology,UniversityofEdinburgh,Edinburgh,EH93JR,
UKandofHumanSciences,UniversityofLoughborough,Loughborough,LE113TU,UK
2Department
ReceivedonApril30,2003;revisedonJune25,2003;acceptedonJuly4,2003
ABSTRACT
Summary:YeastExplorationToolIntegrator(YETI)isanovelbioinformaticstoolfortheintegratedvisualizationandana-lysisoffunctionalgenomicdatasetsfromthebuddingyeastSaccharomycescerevisiae.
Availability:YETIisfreelyavailableforuseovertheWWW,ordownloadunderlicense,athttp://www.bru.ed.ac.uk/~orton/yeti.html
Contact:orton@bch.ed.ac.uk
ThebuddingyeastSaccharomycescerevisiaeisoneofthemostwidelystudiedeukaryoticorganismsduetoitsvalueasamodelorganisminbiologicalresearch.Itscompletegenomesequenceiswellannotated(Goffeauetal.,1996)andavarietyoflargefunctionalgenomicdatasetsarepubliclyavailable.TheSaccharomycesGenomeDatabase(SGD)(Cherryetal.,1998)containsawealthofgenomicandbiologicalinforma-tion,isregularlyupdatedandmakesalargeamountofitsdatapubliclyavailable.Therearealsoanumberofpubliclyavailableyeasttwo-hybridprotein–proteininteractiondatasetsavailablefromonlinedatabasesandindividualstudies(Mewesetal.,1997;Uetzetal.,2000;Itoetal.,2001).
listsbasedonGeneOntology(GO)annotations(Ashburneretal.,2000).Usersareabletoscrollalongchromosomes,zoominorout,clickongenesofinteresttoviewdatasheetsorselectregionsofinteresttoinvestigatefurther(Fig.1B).
(2)AProteomeSectionfortheeffectivevisualizationof
protein–proteininteractionsasinferredfromyeasttwo-hybridscreens(Fig.1C).Aproteininteractionmapisgeneratedbyinputtingthenameofaproteinofinterest;YETIthendynamicallydisplaysallrelevantinterac-tionsonagraphicalpanel,asinspiredbyMrowka(2001).Someadvancedfeaturesincludereorganizingthemap,interactiondirection,deselecting,expandingout,erscanalsoselectmultipleproteinsorinteractionclusterstoinvestigatefurther.(3)AnAnalysisSectionprovidesuserswithagraphical
interfacetothedatabase(Fig.1D).Oneofthelimita-tionswithonlinedatabasesisthattheprimaryandsometimesonlywayofsearchingisbyenteringasinglenameandthenviewingtheresultsoneatatime.YETIoffersamuchmoredynamicand exiblesearchsystemthatallowsforcomplexquerysearchesandprovidesaninteractivedatatabletocollectivelyviewresults.Allsectionsarecloselyinterlinkedenablinguserstomoveswiftlybetweensectionsandinvestigateallaspectsofanygenesorproteinsofinterest.Furthermoreaccesstotextualinformation,includingGOannotations,isprovidedatanypoint.
YETI
TheYeastExplorationToolIntegrator(YETI)isanovelbioin-formaticstoolfortheintegratedvisualizationandanalysisofS.cerevisiaefunctionalgenomicdatasets.YETIconsistsofaMySQLrelationaldatabaseforthestorageandmanagementofdataandaJavaprogramforvisualizationandanalysis.YETIusespubliclyavailabledatafromtheSGDandindi-vidualstudiestopopulateitsowndatabaseandscriptshavebeenwrittentokeepthedatabaseup-to-date.The rstreleaseofYETIconsistsofthreesections:
(1)AGenomeSectionfortheinformativedisplayofthe
S.cerevisiaechromosomes,knownandpredictedgenesandassociatedannotations.Thissectionallowsuserstoviewthelocationofgroupsofgenesonagenomicschematic(Fig.1A).Thesegroupscanbespeci edbytheusersthemselvesorselectedfromprede ned
To
DISCUSSION
YETIiswrittenintheJavaprogramminglanguageandshouldrunonanyoperatingsystemthathasaccesstoaJava1.4orhighervirtualmachine;ithasbeentestedunderWindows,LinuxandMacOS-X.YETIcanbeusedovertheWWWviaaJavaappletoritcanbedownloaded,underlicense,withtheMySQLdatabaseandinstalledlocally.OneofYETI’sstrengthsisitsuser-friendlinesstowardswet-laboratoryuserswhowilluseYETIasa‘workbench’toexplorethedata.Thisiscombinedwithasoliddatabasestructureenabling
whomcorrespondenceshouldbeaddressed.
284
Bioinformatics20(2)©OxfordUniversityPress2004;allrightsreserved.
Summary: Yeast Exploration Tool Integrator (YETI) is a novel bioinformatics tool for the integrated visualization and analysis of functional genomic data sets from the budding yeast Saccharomyces cerevisiae. Availability: YETI is freely available for use o
YETI
Fig.1.YETIscreenshots:(A)genomeschematic;(B)chromosomescrolling;(C)proteininteractionmap;(D)interactivedatatable.
bioinformaticianstocarryoutcollectiveanalysesofthedatasets.Inaddition,twonewsectionsarecurrentlyunderdevel-opment.ATranscriptomeSectionwillprovideameansforeffectivelyvisualizingandanalysingdatafromgeneexpres-sionmicroarraysusingbothclusteringalgorithmsandprin-cipalcomponentanalysisandaCellSectionwillprovideaccesstometabolicpathways.AlthoughYETI’sdesignisspe-ci callyaimedatS.cerevisiae,theframeworkoftheprogramcouldbeappliedtootherorganismswithease.
ACKNOWLEDGEMENTS
WewouldliketothankProf.JeanBeggsandherlaboratoryattheUniversityofEdinburghfortheircontinuedsupportandadvice.R.J.O.issupportedbyaSpecialBioinformaticsStudentshipfromtheMedicalResearchCouncil.
REFERENCES
Ashburner,M.,Ball,C.A.,Blake,J.A.,Botstein,D.,Butler,H.,Cherry,J.M.,Davis,P.A.,Dolinski,K.,Dwight,S.S.,Eppig,J.T.
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Mewes,H.W.,Albermann,K.,Heumann,K.,Liebl,S.andPfeiffer,F.(1997)MIPS:adatabaseforproteinsequences,homologydataandyeastgenomeinformation.NucleicAcidRes.,25,28–30.Mrowka,R.(2001)AJavaappletforvisualizingprotein–proteininteraction.Bioinformatics,17,669–670.
Uetz,P.,Giot,L.,Cagney,G.,Mans eld,T.A.,Judson,R.S.,Knight,J.R.,Lockshon,D.,Narayan,V.,Srinivasan,M.,Pochart,P.etal.(2000)Acomprehensiveanalysisofprotein–proteininter-actionsinSaccharomycescerevisiae.Nature,403,623–627.
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