A hinge region mutation in Cl-inhibitor (Ala436→Thr) results in nonsubstrate-like behavior and in polymerization of the molecule - Aulak, K S; Eldering, E; Hack, C E; Lubbers, Y PT; Harrison, R A; Mast, A; Ci-cardi, M; Davis, A E III (J Biol Chem, 1993)