6FF3:
reference: Structures of insect Imp-L2 suggest an alternative strategy for regulating the bioavailability of insulin-like hormones., Roed NK, Viola CM, Kristensen O, Schluckebier G, Norrman M, Sajid W, Wade JD, Andersen AS, Kristensen C, Ganderton TR, Turkenburg JP, De Meyts P, Brzozowski AM, Nat Commun. 2018 Sep 21;9(1):3860. doi: 10.1038/s41467-018-06192-3. PMID: 30242155

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