UCSC genome browserのデータの「Conditions of Use」
各データのtrackに関しては
http://genome.ucsc.edu/index.html
にある
Conditions of Use
の項目を見ると
The sequence and annotation data displayed in the Genome Browser are
freely available for academic, nonprofit, and personal 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.
と各データベースのディレクトリにあるREADME.txtに書いてあるとのことでした。
試しに
ftp://hgdownload.cse.ucsc.edu:/goldenPath/hg17/database
のREADME.txtを開くとUniprot以外はfreely avialableだよー、とあります。