Schema for RepeatMasker - Repeating Elements by RepeatMasker
  Database: DyakCAF1    Primary Table: rmsk    Row Count: 103,484   Data last updated: 2022-10-20
fieldexampleSQL type info
bin 585smallint(5) unsigned range
swScore 2401int(10) unsigned range
milliDiv 205int(10) unsigned range
milliDel 77int(10) unsigned range
milliIns 6int(10) unsigned range
genoName chr2Lvarchar(255) values
genoStart 658int(10) unsigned range
genoEnd 1647int(10) unsigned range
genoLeft -22322805int(11) range
strand -char(1) values
repName RepeatScout_4418varchar(255) values
repClass LTRvarchar(255) values
repFamily Gypsyvarchar(255) values
repStart -4int(11) range
repEnd 628int(11) range
repLeft 1int(11) range
id 1char(1) values

Sample Rows
 
binswScoremilliDivmilliDelmilliInsgenoNamegenoStartgenoEndgenoLeftstrandrepNamerepClassrepFamilyrepStartrepEndrepLeftid
5852401205776chr2L6581647-22322805-RepeatScout_4418LTRGypsy-462811
5852100823578chr2L16592063-22322389-Gypsy-21_DY-ILTRGypsy-9926287421
58519577511153chr2L21102477-22321975-Gypsy-21_DY-ILTRGypsy-31924087422
5852138653282chr2L25242914-22321538-Gypsy-21_DY-ILTRGypsy-31924087423
5852212732663chr2L29613372-22321080-Gypsy-21_DY-ILTRGypsy-31924087424
5853402118140chr2L55445665-22318787+RepeatScout_783SatelliteSatellite792898-1215
5855842111185chr2L57125888-22318564+RepeatScout_783SatelliteSatellite792955-645
5854552133947chr2L61776391-22318061-DNAREP1_DMRCHelitron-2713231126
58524324600chr2L74127477-22316975-RepeatScout_4198RCHelitron-191131512517
5852542722121chr2L83578451-22316001-Helitron-N2_DElRCHelitron-4999528

Note: all start coordinates in our database are 0-based, not 1-based. See explanation here.

RepeatMasker (rmsk) Track Description
 

Description

This track was created by using Arian Smit's RepeatMasker program, which screens DNA sequences for interspersed repeats and low complexity DNA sequences. The program outputs a detailed annotation of the repeats that are present in the query sequence (represented by this track), as well as a modified version of the query sequence in which all the annotated repeats have been masked (generally available on the Downloads page). RepeatMasker uses the Repbase Update library of repeats from the Genetic Information Research Institute (GIRI). Repbase Update is described in Jurka, J. (2000) in the References section below.

Display Conventions and Configuration

In full display mode, this track displays up to ten different classes of repeats:

  • Short interspersed nuclear elements (SINE), which include ALUs
  • Long interspersed nuclear elements (LINE)
  • Long terminal repeat elements (LTR), which include retroposons
  • DNA repeat elements (DNA)
  • Simple repeats (micro-satellites)
  • Low complexity repeats
  • Satellite repeats
  • RNA repeats (including RNA, tRNA, rRNA, snRNA, scRNA)
  • Other repeats, which includes class RC (Rolling Circle)
  • Unknown

The level of color shading in the graphical display reflects the amount of base mismatch, base deletion, and base insertion associated with a repeat element. The higher the combined number of these, the lighter the shading.

Methods

UCSC has used the most current versions of the RepeatMasker software and repeat libraries available to generate these data. Note that these versions may be newer than those that are publicly available on the Internet.

Data are generated using the RepeatMasker -s flag. Additional flags may be used for certain organisms. Repeats are soft-masked. Alignments may extend through repeats, but are not permitted to initiate in them. See the FAQ for more information.

Credits

Thanks to Arian Smit and GIRI for providing the tools and repeat libraries used to generate this track.

References

Jurka J. Repbase update: a database and an electronic journal of repetitive elements. Trends Genet. 2000 Sep;16(9):418-20. PMID: 10973072