>Hi list, > > At this websites > http://www.bioconductor.org/help/bioc- views/release/data/annotation/, > I cannot find it. > > Thanks. Hi Jinyan, HuExExonProbesetLocationHg18 <http: www.bioconductor.org="" help="" bioc-="" views="" release="" data="" annotation="" html="" huexexonprobesetlocationhg18.html=""> and HuExExonProbesetLocationHg19 <http: www.bioconductor.org="" help="" bioc-="" views="" release="" data="" annotation="" html="" huexexonprobesetlocationhg19.html=""> Contain exon-level annotation extracted from Netaffx: The package contain a data frame with the following columns: EPROBESETID exon-level probeset id CHR chromosome STRAND chromosome strand START start position of the Probe Selection Region on chromosome END end position of the Probe Selection Region on chromosome GPROBESETID Gene-level probeset id ANNLEVEL annotation level On the basis of chromosome location it is relatively easy to associate gene level information using a package as ChIPpeakAnno Cheers Raffaele -- ---------------------------------------- Prof. Raffaele A. Calogero Bioinformatics and Genomics Unit MBC Centro di Biotecnologie Molecolari Via Nizza 52, Torino 10126 tel. ++39 0116706457 Fax ++39 0116706487 Mobile ++39 3333827080 email: raffaele.calogero@unito.it raffaele[dot]calogero[at]gmail[dot]com www: http://www.bioinformatica.unito.it [[alternative HTML version deleted]]