Hi Sandra, Some genes have many transcripts. The flank sequence for a transcript is either upstream from the first exon (upstream flank) or downstream from the last exon (downstream flank) for each individual transcript. The upstream flank for a gene is upstream from the first exon of this gene (that is the most upstream exon of all the transcripts belonging to this gene) and the downstream flank is the downstream flank from the last exon of this gene (this is the most downstream exon from all the transcripts belonging to this gene).
hope this makes sense to you :) a On Wed, Sep 14, 2011 at 1:04 PM, Sandra Grossi Gava - Fiocruz < [email protected]> wrote: > Good afternoon, > > I'm using Biomart, because I need the promoter region, about 3 Kb of some > genes. > And I would like to know information on what is the difference between the > sequence types: 'Flank (Transcript)' and 'Flank (Gene)' on the " > attributes". > > Thanks. > > Sandra Grossi Gava > Bacharel em Bioquímica - UFV > Mestranda em Ciências da Saúde - Biologia Celular e Molecular - > CPqRR/FIOCRUZ > (31) 86187508 > > > Centro de Pesquisas René Rachou/CPqRR -- *A Fiocruz em Minas Gerais*. > Rene Rachou Research Center/CPqRR -- *The Oswaldo Cruz Foundation in the > State of Minas Gerais, Brazil*. > www.cpqrr.fiocruz.br > > _______________________________________________ > Users mailing list > [email protected] > https://lists.biomart.org/mailman/listinfo/users > >
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