Hello Dawn,
You can read about the details behind any track (description, methods,
display,
credits, references) by pressing on the 'mini-button' to the left of the actual
track display, or by clicking on the hyperlinked track name in the track
controls (below the display). In this case, click on the blue or gray button
to
the left of the human mRNA annotation track.
You will see, from the description page, that the "filled white
rectangles"
(a.k.a. "double horizontal lines") designate locations where both the genome
and
the mRNA have an insertion. You can turn off that feature by un-checking the
box on the configuration page:
Draw double horizontal lines when both genome and query have an insertion
I hope this information has helped demystify things for you. Please
don't
hesitate to contact the mail list again if you require further assistance.
Regards,
----------
Ann Zweig
UCSC Genome Bioinformatics Group
http://genome.ucsc.edu
Please feel free to search the Genome mailing list archives by visiting our
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list.
Dawn Thiselton wrote:
> Hi,
>
> Please can you tell me what the filled white rectangles are on some
> mRNAs e.g. the AF315 series at the top of the browser window
> http://genome.ucsc.edu/cgi-bin/hgTracks?position=chr2:185086058-185597740&hgsid=116168640&mrna=pack
> Nobody around here seems to know and I can;t find an answer on the browser.
>
> Thanks! These things have been bothering me for some time as they extend
> some genes, potentially, and link others.
>
> Dawn
>
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