1Q1P:
reference: Proteolytic E-cadherin activation followed by solution NMR and X-ray crystallography., Haussinger D, Ahrens T, Aberle T, Engel J, Stetefeld J, Grzesiek S, EMBO J 2004 Apr 21;23(8):1699-708. Epub 2004 Apr 8. PMID: 15071499

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