Name	Info	Provider	Link
	subscription/membership/fee required	Ingenta plc	http://ijs.microbiologyresearch.org/pubmed/content/journal/ijsem/10.1099/ijs.0.000114
	free resource	NCI CPTC Antibody Characterization Program	https://antibodies.cancer.gov/detail/CPTC-NT5E-1
SILVA SSU Database	free resource	SILVA	http://www.arb-silva.de/search/show/ssu/pubid/25678682