kininogen + C1q binding protein tetramer -> kininogen:C1q binding protein tetramer

Stable Identifier
R-HSA-158354
Type
Reaction
Species
Homo sapiens
Compartment
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Summation

Kininogen (high molecular weight kininogen; HK) associates with C1q binding protein on the cell surface in a reaction dependent on Zn++ (Joseph et al. 1996). In the body, the Zn++ needed to drive this reaction may be provided locally by Zn++ release from activated platelets (Mahdi et al. 2002). The C1q binding protein is inferred to form tetramers based on the properties of purified recombinant protein in vitro (Ghebrehiwet et al. 1994); the stoichiometry of the cell surface complex has not been determined directly.

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