13e0fcf19a6d71108ecb13289c09de4c1286780c jnavarr5 Fri Sep 26 14:27:58 2025 -0700 Fixing broken links reported by the student interns, refs #36072 diff --git src/hg/htdocs/goldenPath/help/hgTrackHubHelp.html src/hg/htdocs/goldenPath/help/hgTrackHubHelp.html index 74e2d210dfc..d22d7f638c4 100755 --- src/hg/htdocs/goldenPath/help/hgTrackHubHelp.html +++ src/hg/htdocs/goldenPath/help/hgTrackHubHelp.html @@ -64,34 +64,34 @@

Questions and feedback are welcome.

What Are Track Hubs?

Track hubs are web-accessible directories of genomic data that can be viewed on the UCSC Genome Browser (please note that hosting hub files on HTTP tends to work even better than FTP and local hubs can be displayed on GBiB). Track hubs can be displayed on genomes that UCSC directly supports, or on your own sequence. Hubs are a useful tool for visualizing a large number of genome-wide data sets. For example, a project -that has produced several wiggle plots of data can use the hub utility to organize the tracks into -composite and super-tracks, making it possible to show the data for a large collection of tissues -and experimental conditions in a visually elegant way, similar to how the ENCODE native data tracks -are displayed in the browser.

+that has produced several wiggle plots of data can use the +hub utility to organize the tracks into composite and super-tracks, making it possible to show the +data for a large collection of tissues and experimental conditions in a visually elegant way, +similar to how the ENCODE native data tracks are displayed in the browser.

The track hub utility allows efficient access to data sets from around the world through the familiar Genome Browser interface. Browser users can display tracks from any public track hub that has been registered with UCSC. Additionally, users can import data from unlisted hubs or can set up, display, and share their own track hubs. Genome assemblies that UCSC does not support can be loaded and viewed with associated data.

The data underlying the tracks and optional sequence in a hub reside on the remote server of the data provider rather than at UCSC. Genomic annotations are stored in compressed binary indexed files in bigBed, bigBarChart, bigGenePred, bigNarrowPeak, bigMethyl, bigPsl, bigChain, bigInteract, bigMaf, bigWig, BAM, CRAM, HAL, hic or VCF format that contain the data at several resolutions. In the case of assemblies that UCSC does not support, genomic sequence is stored in the efficient twoBit format. When a hub track is displayed in the Genome Browser, only the relevant data needed to support the view of the current genomic region @@ -185,31 +185,31 @@

For additional information, see sharing Saved Sessions and backing up custom data.

Creating a URL for a Track Hub

Hubs can be loaded into the URL using the hubUrl= parameter. This parameter -takes input similar to the track hub input box. +takes input similar to the track hub input box. Native UCSC supported genomes can be loaded into the URL using the db= parameter while non-natively supported genomes such as assembly hubs or GenArk hubs use the genome= parameter. URL parameters can be combined by using &.

The following example links to the hg19 genome database and an example track hub using the db= and the hubUrl= parameters:

http://genome.ucsc.edu/cgi-bin/hgTracks?db=hg19&hubUrl=https://genome.ucsc.edu/goldenPath/help/examples/hubDirectory/hub.txt

Track hubs' track visibility can also be changed from the URL parameters. As an example, the following link specifies: