[DAS] Reference servers and database versions

[Lincoln Stein]

Each annotation server indicates the reference server (in the MAPMASTER 
field) that it is built on top of.  Clients are *not* supposed to mix 
annotations that are built on top of different reference servers.

Lincoln

On Tuesday 09 April 2002 17:37, richard cote wrote:
> I've a question regarding reference servers and
> concurrent database versions.
>
> A situation:
>
> Alice uses a DAS client and points it to 3 annotation
> servers (foo.com, bar.edu and baz.org). It so happens
> that each annotation server is using a different
> reference server, and unfortunately, each reference
> server is using a different build of the human genome
> where contigs shift around like crazy. I figure that
> this problem could become a major headache as more
> builds become available and db admins don't
> refresh/update the databases on a regular basis.
>
> Now suppose that I want to query all annotations on
> chromosome 1 (nts 1-10K), how can I be sure that the
> results from the various annotation servers are in
> actuality talking about the same piece of DNA?
>
> Am I missing something, or could this be disastrous?
>
> Thank you,
>
> =====================================================
> Richard Cote, M.Sc.                richard@seqbio.com
> Senior Bioinformatician         http://www.seqbio.com
> Sequence Bioinformatics                1-877-SEQUENCE
> 1410 Stanley St. Suite 704         (tel) 514-842-5356
> Montreal, QC  H3A 1P8              (fax) 514-842-7230
> =====================================================
>
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