[Genome] Downloading annotations for parts of genome

Kayla Smith kayla at soe.ucsc.edu
Fri Feb 9 14:15:00 PST 2007


Manisha,

If you are looking to download sequence, here is a link to our FAQ on 
how to download sequence in batch from an assembly:
http://genome.ucsc.edu/FAQ/FAQdownloads#download32

When using the table browser to output sequence, there is an option
under "Sequence Formatting Options" to mask repeats to either lower case 
(or to N).  If you select this option before clicking on the "get 
sequence" button, then the repeat masked sequence will show up in your 
results as lower case, and everything else will be upper case.

Additionally, you could intersect your genomic co-ordinates with repeat 
masked data to see if there is any overlap between your coordinates and 
repeats.  To do this in the table browser, you could:

1.  Save your genomic co-ordinates as a custom track

2.  In the Table Browser, set:
clade: insect
genome: D. melanogaster
assembly: Apr. 2004
group: Custom Tracks
track: User Track
table: (what ever you had named your custom track)
click on create intersection
   group: Variation and Repeats
   track: RepeatMasker
   table: RepeatMaster (rmsk)
   Select the radio button that says "All User Track records that have 
any overlap with RepeatMaster"
   Click "submit"
output format: BED
click "get output"

3.  Your results will be those of your items which had any overlap with 
RepeatMasker.

I hope this is helpful to you.  Please don't hesitate to contact us 
again if you require further assistance.

Kayla Smith
UCSC Genome Bioinformatics Group

Goel, Manisha wrote:
> Hello,
> I have a large number of D.melanogaster genome co-ordinates for which I
> want to download the annotations. 
> Or more specifically I just need to know if the region denoted by these
> coordinates is annotated as "repeats".
> I have tried looking through the table browser, but am unable to figure
> out if I can do this using table browser.
> Could you pelase suggest the most straighforward way of getting this
> information from ucscs genome browser.
> 
> Thanks a lot for your help.
> -Manisha
> 
> _______________________________________________
> Genome maillist  -  Genome at soe.ucsc.edu
> http://www.soe.ucsc.edu/mailman/listinfo/genome



More information about the Genome mailing list