Hello, Aritra. You are correct that RefSeq IDs are unique and that you should generally not have more than one result per RefSeq ID. In this particular case, however, the gene referenced in your previously-answered mailing list question (NR_001298) occurs on chromosome 6. A quick search of NR_001298 in hg19 reveals two search results: one on chr6 and one on chr6_cox_hap2 which is a haplotype of chromosome 6 (please see the previously-answered mailing list question at https://lists.soe.ucsc.edu/pipermail/genome/2006-December/012416.html). In hg19, there are haplotype chromosomes associated with chr4, chr6 and chr17 (http://genome.ucsc.edu/cgi-bin/hgTracks?db=hg19&chromInfoPage=). Any genes that occur in these haplotype chromosomes will likely show up twice in any search results.
Please contact us again at [email protected] if you have any further questions. --- Steve Heitner UCSC Genome Bioinformatics Group -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Aritra Deb Sent: Tuesday, June 12, 2012 7:40 AM To: [email protected] Subject: [Genome] Whether the refseq accession no. not unique Hello, While working with Blat I got an error; "blat: fuzzyFind.c:1438: ffFind: Assertion `hayStart <= hayEnd' failed" and I found an answer in this page; " http://www.mail-archive.com/[email protected]/msg01650.html";. Now please tell me why there is same refseq accession no. assigned to different sequences in refseq sequence files downloaded from ucsc table browser. Is those accession no. are not unique? Please reply soon. Thanks. Aritra _______________________________________________ Genome maillist - [email protected] https://lists.soe.ucsc.edu/mailman/listinfo/genome _______________________________________________ Genome maillist - [email protected] https://lists.soe.ucsc.edu/mailman/listinfo/genome
