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# dbSNP - ancestral_allele and gene_name data missing in SubSNP table

Skaneateles, nyPosts: 3Member
edited January 2014

Question on the dbSNP database. Looks like the SubSNP table is the only location for ancestral_allele and gene_name information for a given snp_id/subsnp_id. However, these fields in SubSNP are very sparsely populated. For example, if you search the dbSNP web page :

http://www.ncbi.nlm.nih.gov/SNP/snp_ref.cgi?searchType=adhoc_search&type=rs&rs=rs5

you can see the ancestral allele for rs5 is G. However, if you search snp_id=5 in the SubSNP table, both ancestral_allele and gene_name are null:

mysql> select gene_name,ancestral_allele from SubSNP where snp_id=5;
+-----------+------------------+
| gene_name | ancestral_allele |
+-----------+------------------+
|           |                  |
+-----------+------------------+
1 row in set (0.00 sec)


Can anyone explain this discrepancy or know where I can get ancestral_allele or gene_name if not in SubSNP directly ?

Post edited by Geraldine_VdAuwera on
Tagged:

## Comments

• Posts: 8,273Administrator, GATK Dev admin

Hi there,

I have no idea what the SubSNP table is so I can't help you. Perhaps someone from the community will pop up with an answer, but if not I would ask the dbSNP support folks, or post your question on a more general forum like Biostars or SeqAnswers. Good luck!

Geraldine Van der Auwera, PhD

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