This is a PSU customization of the UCSC Genome Browser. It contains many tracks from the UCSC Genome Browser, and others are tracks generated here at PSU.

New information from Penn State labs includes the ChIP-chip and ChIP-seq data on GATA1 and TAL1 occupancy and histone modifications in a mouse erythroid cell line (without and with the critical transcription factor GATA1). These results are published in:

• Zhang Y, et al, Nucleic Acids Res. 2009 PMID 19767611
• Tripic T, et al., Blood 2009 PMID 19011221
• Cheng Y, et al., Genome Res. 2008 PMID 18818370

The sequence and annotation data displayed in the Genome Browser are freely available for any use with the following conditions:

• Genome sequence data use restrictions are noted within the species sections on the Credits page.
• Some annotation tracks contributed by external collaborators contain proprietary data that have specific use restrictions. To check for restrictions associated with a particular genome assembly, review the database/README.txt file in the assembly's downloads directory.

The Genome Browser and Blat software are free for academic, nonprofit, and personal use. A license is required for commercial use. See the Licenses page for more information.

Program-driven use of this software is limited to a maximum of one hit every 15 seconds and no more than 5,000 hits per day.

For assistance with questions or problems regarding the UCSC Genome Browser software, database, genome assemblies, or release cycles, see the FAQ.

• Data organization and format
• Terminology