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Some facts about MatInspector's matrix library


Rel. 10.0
Oct 2016
Rel. 9.4
Nov 2015
Rel. 9.3
Mar 2015
Rel. 9.2
Oct 2014
Rel. 9.1
Sep 2013
Rel. 9.0
Aug 2012
Rel. 8.4
Jun 2011
Rel. 8.3
Oct 2010
Rel. 8.2
Jan 2010
Rel. 8.1
Jun 2009
# matrices 1,679 1,601 1,578 1,574 1,424 1,381 1,326 1,283 1,166 1,106
# families 456 447 444 440 418 411 407 398 386 364
# TFs described 10,892 10,733 10,947 9,780 10,120 9,367 8,495 7,495 6,814 6,448

The current matrix library (Matrix Family Library Version 10.0) contains 1,679 weight matrices in six groups (transcription factor binding sites from species fungi, insects, plants, vertebrates, and miscellaneous as well as general core promoter elements).

Group # matrices # matrix families # IUPACs # IUPAC families
Fungi 157 68 --- ---
Insects 92 52 --- ---
Plants 293 98 431 323
Vertebrates 1,099 210 --- ---
Miscellaneous 21 17 --- ---
General Core Promoter Elements 17 11 --- ---
Total 1,679 456431 323

The vertebrate group represents binding site descriptions of 9,419 transcription factors. The plant group represents binding site descriptions of 1,009 transcription factors from several plant species. The fungi group represents binding site descriptions of 141 transcription factors from Saccharomyces cerevisiae and Schizosaccharomyces pombe.

For plants, a IUPAC library containing individual plant transcription factor binding sites is available in addition to the matrix library. The IUPAC library is based on PLACE). Identical and similar TF binding sites of PLACE have been grouped into IUPAC families and very unspecific binding sites (e.g. CANNTG) have been removed.