[Genome] chr"N"_random

[Nathan Johnson]

Hi

I'm interested in mapping UCSC random chromosomes to the ensembl  
system.  Specifically HG17 random chromosomes, I believe these are a  
concatenation of sequences which are unplaced in the final assembly  
(for whichever reason), padded with 50kb of Ns.

I must admit I've not used the UCSC browser an awful lot, so I do  
apologise if I'm asking a novice question.  Is there easy way I can  
aquire an assembly path for the random chromosomes? e.g. a list of  
contig ids and start and end values.

Thanks

Nathan Johnson
Scientific Programmer
European Bioinformatics Institute
Wellcome Trust Genome Campus
Hinxton
Cambridge CB10 1SD
Email: njohnson at ebi.ac.uk