I'm trying to use Table browser to get BED tracks of Base-pair-wise
intersection of various tracks. For example, intersecting dbSNP and
knownGene exons to get  a track of genome bases in dbSNP covered by any
known genes exon. This used to work for any track but now it works for
small tracks only. Even intersecting known gene track to itself to get
bed track of genome bases covered by known genes exons does not work any
more - the file is truncated:

 

$ tail knownGenes_bitwiseIntersect

chr11   95160435        95160490        chr11.9285

chr11   95161310        95161375        chr11.9286

chr11   95162203        95162602        chr11.9287

chr11   95163289        95163555        chr11.9288

chr11   95172043        95172200        chr11.9289

chr11   95185715        95185923        chr11.9290

chr11   95186279        95186401        chr11.9291

------------------------------------------------------------------------
---

Allocated too much memory - more than 6,442,450,941 bytes
(6,442,483,623)

------------------------------------------------------------------------
---

 

Is it possible for me to do such intersection locally? I mean without
setting up whole local browser. Or may be you can suggest some other way
around.

 

Thanks!

 

Irina Khrebtukova, PhD

Sr. Staff Bioinformatics Scientist

Gene Expression Applications R&D

 

Illumina Inc.

25861 Industrial Blvd.,

Hayward, CA 94545

 

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