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Human Genome Assembly Data

Metrics for the current genome assembly

Statistics for the current assembly are available below. Information on tiling path files (TPFs) for the human assembly is available at TPF Overview.

As of GRCh38.p8, we now count runs of >10 N bases as gaps. This may change the values reported for ungapped lengths and gaps on these statistics pages. If you have any questions, please contact the GRC.

Assembly Statistics for GRCh37

Release date: June 30, 2016

Length statistics are calculated by summing both the sequenced bases as well as the estimated gap sizes.