Name	Info	Provider	Link
psbQ	free resource	BioCyc	https://biocyc.org/gene?orgid=GCF_000009725&id=SGL_RS04410
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/15258264/
	subscription/membership/fee required	Silverchair Information Systems	https://academic.oup.com/plcell/article-lookup/doi/10.1105/tpc.104.023515