4 Oct. 2007 - ENCODE Genome Browser Released for hg18 Assembly
The ENCODE browser for UCSC human genome assembly hg18
(NCBI Build 36) is now available. You can access the browser
directly by clicking here
or via the Regions (hg18) link on the
ENCODE Pilot Project page.
The hg18 ENCODE browser includes 540 data tables in 59
browser tracks that were migrated from the hg17 browser.
The hg17 data coordinates were converted to hg18 coordinates
using the UCSC liftOver process.
To improve the accessibility of the data, related ENCODE
tracks have been gathered into new configuration groupings
("super-tracks") that can be displayed or hidden
using a single visiblity control. We have also reduced the
number of track groups and have modified some of the group
names for clarity.
The following table
summarizes the data currently present in the hg18 ENCODE
browser:
| Group |
Super-tracks |
Tracks |
Tables |
| Regions and Genes | 2 | 12 | 73 |
| Transcription | 2 | 11 | 67 |
| Chromatin Immunoprecipitation | 8 | 28 | 349 |
| Chromatin Structure | 2 | 8 | 51 |
Note that the Variation and Comparative Genomics data were
not lifted during this migration; instead, they will be
replaced by new data. The first ENCODE MSA alignment for
hg18 (TBA) is currently in progress on the UCSC
development
server.
During the migration, ENCODE tracks with whole-genome
data were moved into the standard browser track
groups. These include the GIS PET and UCSD/LI
TAF1 tracks. Future submissions of whole-genome ENCODE data
will be loaded directly into the standard track groups.
We have expanded the ENCODE downloads site to include
original data for all "wiggle" datasets. These
data files now have filename extensions indicating the
wiggle input format (fixed step, variable step, or
bedGraph).
You can find a description of the migration project and
full details of the tables, tracks, and super-tracks
available at the UCSC ENCODE portal on the UCSC
Genome Browser wiki.
The UCSC team members who contributed to this effort were:
Andy Pohl (data conversion and database loading), Ting Wang
and Donna Karolchik (super-track documentation), Bob Kuhn
(portal updates), Brooke Rhead, Kayla Smith, and Ann Zweig (quality
assurance), and Kate Rosenbloom (super-track development,
project management).
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