The high-molecular-weight kininogen domain 5 is an intrinsically unstructured protein and its interaction with ferritin is metal mediated.
Huhn AJ, Parsonage D, Horita DA, Torti FM, Torti SV, Hollis T. The high-molecular-weight kininogen domain 5 is an intrinsically unstructured protein and its interaction with ferritin is metal mediated. Protein Sci. 2014 Aug; 23(8):1013-22.