Hello, Sometimes a RefSeq has more than one alignment to the genome. This is noted on the RefSe Genes track description page:
Methods RefSeq RNAs were aligned against the human genome using blat; those with an alignment of less than 15% were discarded. When a single RNA aligned in multiple places, the alignment having the highest base identity was identified. Only alignments having a base identity level within 0.1% of the best and at least 96% base identity with the genomic sequence were kept. We hope this helps, Jennifer ------------------------------------------------ Jennifer Jackson UCSC Genome Bioinformatics Group ----- "Peng Yu" <[email protected]> wrote: > From: "Peng Yu" <[email protected]> > To: [email protected] > Sent: Monday, December 14, 2009 10:02:27 AM GMT -08:00 US/Canada Pacific > Subject: [Genome] Why refFlat has duplicated RefSeqIDs? > > I don't understand why there are multiple RefSeqIDs in refFlat. Could > somebody let me know why? > _______________________________________________ > Genome maillist - [email protected] > https://lists.soe.ucsc.edu/mailman/listinfo/genome _______________________________________________ Genome maillist - [email protected] https://lists.soe.ucsc.edu/mailman/listinfo/genome
