Name	Info	Provider	Link
	subscription/membership/fee required	Atypon	https://www.pnas.org/doi/10.1073/pnas.86.1.32?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub 0pubmed
acsE	free resource	BioCyc	https://metacyc.org/gene?orgid=META&id=G-3401
Genes and Gene Therapy	free resource	MedlinePlus Health Information	https://medlineplus.gov/genesandgenetherapy.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/2911576/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/2911576
Cited by Patents in	free resource	The Lens - Patent Citations	https://www.lens.org/lens/search/patent/list?q=citation_id:2911576