[Genome] chrX regions on hg18

[Ann Zweig]

Hello Marcela,

	The gateway page of the hg18 assembly contains this information:

The Y chromosome in this assembly contains two pseudoautosomal regions (PARs) at 
chrY:1-2709520 and chrY:57443438-57772954. These sequences were taken from the 
corresponding regions in the X chromosome and are exact duplications of the X 
chromosome sequences at chrX:1-2709520 and chrX:154584237-154913754, respectively.

	As for the information at the NCBI site, I would suggest starting here: 
http://www.ncbi.nlm.nih.gov/genome/guide/human/release_notes.html#b36

	If this doesn't answer your question, please feel free to write back to the 
list with more details.


Regards,

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


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Marcela K. Tello-Ruiz wrote:
> Hello!
> 
> I am looking for the genomic coordinates for the various "regions" of 
> Chr X (pseudoautosomal region 1 or PAR1; PAR2, non-par...).  Is this 
> info somewhere in the UCSC browser or do you know where could I get it 
> for hg18 (NCBI b36)? 
> 
> Thanks,
> 
> Marcela
>