[BioMart Users] question about entrezid to hgnc symbol mapping

[Xiaoqiao Liu]

Hi,

         I want to use biomart to get hgnc gene symbol from entrez id

     I use biomart version 0.7 portal
     Database: ENSEMBL GENES 67 (SANGER UK)
     Dataset: Homo sapiens (GRCh37.p7)
     EntrezGene ID: 571

     I get two hgnc symbol for entrez id 571: 
BACH1<http://www.genenames.org/data/hgnc_data.php?match=BACH1>(http://www.genenames.org/data/hgnc_data.php?match=BACH1)
 and 
BACH1-IT1<http://www.genenames.org/data/hgnc_data.php?match=BACH1-IT1>(http://www.genenames.org/data/hgnc_data.php?match=BACH1-IT1)

     However, for BACH1-IT1, these is no evidence indicating that its entrez id 
is 571 on the hgnc official web site 
(http://www.genenames.org/data/hgnc_data.php?match=BACH1-IT1).

Furthermore, from genome browser (I use ucsc), I find that 
BACH1<http://www.genenames.org/data/hgnc_data.php?match=BACH1> and 
BACH1-IT1<http://www.genenames.org/data/hgnc_data.php?match=BACH1-IT1> are 
totally different gene with no overlapping.

Why biomart map 
BACH1-IT1<http://www.genenames.org/data/hgnc_data.php?match=BACH1-IT1> to 
entrezid 571?

Thanks


Kind regards,
xiaoqiao

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