Name	Info	Provider	Link
mgrR	free resource	BioCyc	https://biocyc.org/gene?orgid=ECOLI&id=G0-10671
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=19906183.ui
	free resource	Wiley	https://onlinelibrary.wiley.com/doi/10.1111/j.1365-2958.2009.06943.x