5B5I:
reference: Crystal structure of a crustacean hyperglycemic hormone (CHH) precursor suggests structural variety in the C-terminal regions of CHH superfamily members., Tsutsui N, Sakamoto T, Arisaka F, Tanokura M, Nagasawa H, Nagata K, FEBS J. 2016 Oct 15. doi: 10.1111/febs.13926. PMID: 27743429

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