6HPV:
reference: Structure of mammalian plasma fetuin-B and its mechanism of selective metallopeptidase inhibition., Cuppari A, Korschgen H, Fahrenkamp D, Schmitz C, Guevara T, Karmilin K, Kuske M, Olf M, Dietzel E, Yiallouros I, de Sanctis D, Goulas T, Weiskirchen R, Jahnen-Dechent W, Floehr J, Stoecker W, Jovine L, Gomis-Ruth FX, IUCrJ. 2019 Feb 28;6(Pt 2):317-330. doi: 10.1107/S2052252519001568. eCollection, 2019 Mar 1. PMID: 30867929

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