Name	Info	Provider	Link
	subscription/membership/fee required	Atypon	https://royalsocietypublishing.org/doi/10.1098/rstb.1986.0001?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub 0pubmed
insG	free resource	BioCyc	https://biocyc.org/gene?orgid=ECOLI&id=G7900