Name	Info	Provider	Link
	subscription/membership/fee required	Atypon	https:///www.science.org/doi/10.1126/science.273.5278.1058?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub 0pubmed
mesA	free resource	BioCyc	https://metacyc.org/gene?orgid=META&id=G-58242
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=8688087.ui
REBASE ref# 4468	free resource	REBASE - The Restriction Enzyme Database	http://rebase.neb.com/rebase/refs/4468.html
Cited by Patents in	free resource	The Lens - Patent Citations	https://www.lens.org/lens/search/patent/list?q=citation_id:8688087
SILVA LSU Database	free resource	SILVA	http://www.arb-silva.de/search/show/lsu/pubid/8688087