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Table 1 Number of transcription regulators in different organisms

From: Current approaches to gene regulatory network modelling

Organism number of genes number of transcription regulators
yeast 6682 312 (4.7%)
fly 13525 492 (3.6%)
human 22287 1034 (4.6%)
  1. The number of genes and transcriptional regulators (genes annotated with GO term GO:0030528 "transcription regulator activity" for yeast (Saccharomyces cerevisiae) was taken from SGD http://db.yeastgenome.org/cgi-bin/SGD/search/featureSearch and for fly (Drosophila melanogaster, DROM3) and human (Homo sapiens, NCBI 34 dbSNP120) was taken from ENSEMBL http://www.ensembl.org/Multi/martview