Range: Table - link Unitless
||Bacteria Bacillus subtilis
||Madan Babu M, Teichmann SA, Aravind L. Evolutionary dynamics of prokaryotic transcriptional regulatory networks. J Mol Biol. 2006 Apr 28 358(2):614-33 Supplementary table S4 2nd page 23rd rowPubMed ID16530225
||Transcription factor number prediction according to supplementary information in article link - link (section M2: Procedure to identify orthologous proteins).
||Abstract: "[Researchers] use the known transcriptional regulatory network of Escherichia coli to analyse the conservation patterns of this network across 175 prokaryotic genomes, and predict components of the regulatory networks for these organisms." See BNID 105075,105088. For number of transcription factors in nematodes see BNID 105071,105072,105073,105074