1UPM: Activated Spinach Rubisco Complexed With 2-Carboxyarabinitol 2 Bisphosphat And Ca2+.
reference: Calcium supports loop closure but not catalysis in Rubisco., Karkehabadi S, Taylor TC, Andersson I, J Mol Biol 2003 Nov 14;334(1):65-73. PMID: 14596800

This OCA Structure page
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