LRG Regions Track Settings
Locus Reference Genomic (LRG) Sequences Mapped to Feb. 2009 (GRCh37/hg19) Assembly   (All Mapping and Sequencing tracks)

Display mode:   

Color track by bases: Help on base coloring

Alignment Gap/Insertion Display Options Help on display options
Draw a vertical purple line for an insertion at the beginning or end of the
LRG sequence, orange for insertion in the middle of the LRG sequence
View table schema Data last updated: 2014-07-07 16:39:08


Locus Reference Genomic (LRG) sequences are manually curated, stable DNA sequences that surround a locus (typically a gene) and provide an unchanging coordinate system for reporting sequence variants. They are not necessarily identical to the corresponding sequence in a particular reference genome assembly (such as Feb. 2009 (GRCh37/hg19)), but can be mapped to each version of a reference genome assembly in order to convert between the stable LRG variant coordinates and the various assembly coordinates.

Each LRG record also includes at least one stable transcript on which variants may be reported. These transcripts appear in the LRG Transcripts track in the Gene Predictions track section.


LRG sequences are suggested by the community studying a locus (for example, Locus-Specific Database curators, research laboratories, mutation consortia). LRG curators then examine the submitted transcript as well as other known transcripts at the locus, in the context of alignment and public expression data. For more information on the selection and annotation process, see the LRG FAQ, (Dalgleish, et al.) and (MacArthur, et al.).


Dalgleish R, Flicek P, Cunningham F, Astashyn A, Tully RE, Proctor G, Chen Y, McLaren WM, Larsson P, Vaughan BW et al. Locus Reference Genomic sequences: an improved basis for describing human DNA variants. Genome Med. 2010 Apr 15;2(4):24. PMID: 20398331; PMC: PMC2873802

MacArthur JAL, Morales J, Tully RE, Astashyn A, Gil L, Bruford EA, Larsson P, Flicek P, Dalgleish R, Maglott DR, Cunningham F. Locus Reference Genomic: reference sequences for the reporting of clinically relevant sequence variants. NAR. 2014 Jan 1;42(D1):D873-D878. PMID: 24285302; PMC: PMC3965024


This track was produced at UCSC using LRG XML files. Thanks to LRG collaborators for making these data available.