Somatic L1 Retrotransposition in Colorectal Tumors

Study ID Alternative Stable ID Type
phs000536 Case-Control

Study Description

The purpose of this study is to ascertain the locations of somatic LINE-1 retrotransposition events in human colon tumor samples by pooling multiple tumor samples from different patients and performing a targeted resequencing assay (Ewing and Kazazian, Genome Research 2010) to sequence the 3' flanking regions of all insertions in the pooled sample. The result is compared to the result of applying the same method to pooled normal samples from the same patients as were used in the pooled tumor sample and selecting sites that show an insertion in the tumor but not in the normaltissue and do not correspond to any known non-reference LINE-1 insertion allele. The selected sites are then validated by site-specific PCR and capillary sequencing to confirm that they represent LINE-1 insertions and to obtain breakpoint sequences.

Archive Link Archive Accession
dbGaP phs000536

Who archives the data?

There are no publications available