This directory contains the downloadable tables in the UCSC visiGene
database. This database is shared by the program VisiGene 
 http://genome.ucsc.edu/cgi-bin/hgVisiGene
and tracks that incorporate visiGene data, such as the Known Genes tracks. 

To see descriptions of the tables in visiGene, visit the Table Browser:
  http://genome.ucsc.edu/cgi-bin/hgTables
select "All Tables" as the group, select visiGene as the database,
and select a table.  Then click the "describe table schema" button.