Exome Variant Server: What Are Those Gaps ?

Question

[Pierre Lindenbaum]

Here is a screenshot of the Exome Variant Server data:

Does anyone know what those gaps are ? Some deletions ? but I cannot find those variations in : http://genome.ucsc.edu/cgi-bin/hgTracks?db=hg19&org=human&position=chr8%3A23560300-23560500&hgt.customText=http://evs.gs.washington.edu/evs_bigwig/chr8.multiTracks.txt

PS: We've emailed EVS but we got no answer.

Answer 1

[DG]

According to the EVS Sequence Coverage description (Description of Sequence Coverage) it is just regions that didn't meet their coverage requirements (at least one sample at 8x). It is odd that there are only about 4 base pairs sort of in the middle of the region that were considered not covered but they aren't deletions.