Sequence updates in human genome assembly GRCh38: filling in the gaps

In a previous blog post, we explained several important concepts about the human reference genome.  We presented a region of human chromosome 17 as an example of a location where the genome sequence was not fully assembled.  In this post, we are going to revisit the same gapped region to see how the Genome Reference Consortium (GRC) changed this part of the genome in GRCh38, the updated human reference assembly released in December 2013.  This region represents just one of the more than 1,000 changes and improvements that the GRC introduced in GRCh38.

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