Name	Info	Provider	Link
arcB	free resource	BioCyc	https://biocyc.org/gene?orgid=ECOLI&id=EG10062
	subscription/membership/fee required	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/S0014-5793(97)00459-6
	free resource	Wiley	https://onlinelibrary.wiley.com/resolve/openurl?genre=article&sid=nlm:pubmed&issn=0014-5793&date=1997&volume=408&issue=3&spage=337