A dumps of tables from the MGC track database are deposted every Wednesday
  at 2 am EST at ftp-private.ncbi.nih.gov.  The data is then
  processed by mgcImport to create tab files used to load the
  mgcStatus table.   A script mgcDownload is
  run by cron to download and process the data.
    
$gbRoot/data/mgc/$date/ - Directory containing MGC
        data for download done on $date:
        library.gz - MGC library table dump.
        clone.gz - MGC clone table dump.
        fullength.gz - MGC fullength table dump.
        stage1.gz - MGC stage1 table dump.
        table.descriptions - schema for mgc tables.
        $gbRoot/processed/mgc/$date/ - Directory containing MGC
        data generated from corresponding download directory.
        mgcStatus.tab,gz - Tab file containing summerized
             status information for all MGC clones, created locally by
             mgcImport.
        mgcFullStatus.tab.gz - Subset of mgcStatus.tab,gz
             for the MGC full-CDS clones.  This is used to load browsers that
             will only have the full-CDS track.  It is signficantly smaller than
             the full table.
        mgcFullStatus - Table containing status information about
         full-CDS MGC clones.
    mgcStatus - Table containing status information about
         all MGC clones. 
    mgcFullMrna - PSL table of MGC full-length mRNAs.
    mgcGenes - MGC full-length mRNAs with CDS annotation.
    mgcIncompleteMrna - PSL table of MGC mRNAs which are
         not full length or contain other errors.
    mgcPickedEst - MGC ESTs that have been picked for sequences
         or are in the sequencing pipeline.
    mgcFailedEst  - MGC ESTs where sequencing failed.
    mgcUnpickedEst - ESTs from MGC libraries that have not
         yet been picked for sequencing.