Hg18 Diff Track Settings
 
Contigs New to GRCh37/(hg19), Not Carried Forward from NCBI Build 36(hg18)   (All Mapping and Sequencing tracks)

Display mode:      Duplicate track

Filter score range: min: max: (0 to 1000)

View table schema
Data last updated at UCSC: 2010-09-07

Description

This track shows the differences between the GRCh37 (hg19) and previous NCBI Build 36 (hg18) human genome assemblies, indicating contigs (or portions of contigs) that are new to the hg19 assembly.

The following color/score key is used:

colorscorechange from hg18 to hg19
 0New contig added to hg19 to update sequence or fill gaps present in hg18
 500Different portions of this same contig used in the construction of hg19 and hg18 assemblies
 1000Updated version of an hg18 contig in which sequence errors have been corrected

Use the score filter to select which categories to show in the display.

Methods

The contig coordinates were extracted from the AGP files for both assemblies. Contigs that matched the same name, same version, and the same specific portion of sequence in both assemblies were considered identical between the two assemblies and were excluded from this data set. The remaining contigs are shown in this track.

Credits

The data and presentation of this track were prepared by Hiram Clawson, UCSC Genome Browser engineering.