[Genome] phastConsElements table

[Ann Zweig]

Hello NingLi,

	When we create the Most Conserved track, we aim for a certain coverage 
percentage.  For the 28-way Most Conserved track, we tweaked the parameters of 
the phastCons program until we got approximately 5% coverage genome-wide, and 
approximately 70% CDS coverage.  So, the size of the tables are dependent on the 
parameters used for the phastCons program.

	You can read more details about how we created the tables by pressing the small 
blue or gray button to the far left of the track in the track display, or by 
clicking on the "Most Conserved" track name in the track controls below the 
track display.

	For even more background, here is a link to the paper describing the phastCons 
program:  http://www.genome.org/cgi/content/abstract/15/8/1034

	Please be sure to write back to the list if this is still not clear.


Regards,

----------
Ann Zweig
UCSC Genome Bioinformatics Group
http://genome.ucsc.edu

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李宁 wrote:
> Hello,
> I have been down load two tables from the Table Browser in your
> website,phastConsElements28way and phastConsElements28wayPlacMammal.I just found
> that one table has more records than the other one.I think more conserved elements
> have been found among more species,besides mammal in phastConsElements28way table
> .I do not know whether it is right or not! 
> 
> So again,the question is:
> What are the more differences between the two tables?
> 
> Thanks in advance for your help.
> 
> NingLi
> 
> 
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