Hello,

If you have exon coordinates and want to find transcripts of characterized 
genes that overlap them(?), then you can use the table browser to extract fasta 
sequence.

The steps would be:

1) Upload the coordinates in one of the custom track formats
2) Identify the track you want to pull transcripts from (UCSC Genes, RefSeq 
Genes)
3) Perform an intersection starting with the gene track using your custom track 
as a filter
4) Output as fasta sequence

The intersection process is described in detail in the Table browser help: 
http://genome.ucsc.edu/goldenPath/help/hgTablesHelp.html

And here is Custom track help:
http://genome.ucsc.edu/goldenPath/help/hgTracksHelp.html#CustomTracks

Try this and let us know if you need specific help once you get started. If I 
have misinterpreted your question, please send more information to clarify.
Jennifer


------------------------------------------------ 
Jennifer Jackson 
UCSC Genome Bioinformatics Group 

----- "Valeria Vasta" <[email protected]> wrote:

> From: "Valeria Vasta" <[email protected]>
> To: [email protected]
> Sent: Wednesday, December 2, 2009 4:22:20 PM GMT -08:00 US/Canada Pacific
> Subject: [Genome] getting fasta starting with a list of chromosome coordinates
>
> Hello
> 
>  
> 
> I have to align illumina reads to the targeted sequence that has been
> captured for sequencing i.e a long list of exons coordinates. Can you
> please let me know how can I obtain the fasta files to use as a
> reference for the aignment?
> 
>  
> 
> Thanks
> 
>  
> 
>  
> 
>  
> 
> Valeria Vasta
> 
> Assay Development Scientist | Biochemical and Molecular Genetics R&D
> 
> Seattle Children's Research Institute
> 
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