6L8S:
reference: The high-resolution crystal structure of lobster hemocyanin shows its enzymatic capability as a phenoloxidase., Masuda T, Baba S, Matsuo K, Ito S, Mikami B, Arch Biochem Biophys. 2020 May 4:108370. doi: 10.1016/j.abb.2020.108370. PMID: 32380017

This OCA Structure page
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