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Release 8.4 (06/2011) Release 8.3 (10/2010) Release 8.2 (01/2010) Release 8.1 (06/2009) Release 8.0 (11/2008) Release 7.1 (06/2008) Release 7.0 (11/2007) Release 6.3 (05/2007) Release 6.2 (11/2006)
# matrices 1,326 1,283 1,166 1,106 974 799 773 737 713
# families 407 398 386 364 325 314 306 301 296
# transcription factors described 21,203 17,025 16,240 14,409 13,357 12,519 10,275 7,715 6,652
# transcription factors associated with a matrix 8,495 7,495 7,095 6,678 6,117 5,566 4,707 3,744 3,298
# functional modules 824 790 763 727 670 647 588 551 521
# transcription factor <-> gene interactions 100,841 96,395 76,977 71,432 63,359 59,300 43,918 37,356 29,190
# sites 61,329 44,615 29,294 23,105 16,599 9,713 9,233 8,790 8,617
# references 20,891 20,467 18,528 17,309 15,158 14,700 13,701 12,268 9,210

The current MatBase (June 2011) contains information on 21,203 transcription factor genes from more than 100 different species (including all organisms featured in ElDorado plus various additional ones). The 824 functional promoter modules describe compositions of binding sites with a proven regulatory function. The 1,326 matrices which cover 8,495 of the transcription factors are the ones that are used by MatInspector for identifying binding sites. MatBase also lists the sites and alignments that have been used to create them. All data comes with references to scientific publications that can easily be looked up via PubMed.