GRC Incident Track Settings
GRC Incident Database   (All Mapping and Sequencing tracks)

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Related tracks
  • liftOver & ReMap: LiftOver alignments between hg38 and hg38 to explore how the GRC incident assembly changes affect whole-genome alignments between hg19 and hg38 used for lifting data from hg19
Data last updated at UCSC: 2023-03-18 14:33:03


This track shows locations in the human assembly where assembly problems have been noted or resolved, as reported by the Genome Reference Consortium (GRC).

If you would like to report an assembly problem, please use the GRC issue reporting system.


Data for this track are extracted from the GRC incident database from the specific species *_issues.gff3 file. The track is synchronized once daily to incorporate new updates.


The data and presentation of this track were prepared by Hiram Clawson.