Name	Info	Provider	Link
	subscription/membership/fee required	Atypon	https://www.pnas.org/doi/10.1073/pnas.1012919108?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub 0pubmed
upd1	free resource	BioCyc	https://biocyc.org/gene?orgid=FLY&id=FBGN0004956
	free resource	FlyBase	http://flybase.org/cgi-bin/uniq.html?db=fbrf&field=pubmed_id&context=21518857
Gene Ontology annotations from this paper	free resource	Gene Ontology	http://amigo.geneontology.org/amigo/reference/PMID:21518857
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21518857/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/21518857
NBRP resources	free resource	National BioResource Project	https://rrc.nbrp.jp/references/list?pubmed=21518857