kallikrein:kininogen:cell surface receptor -> kallikrein + cleaved kininogen:cell surface receptor + bradykinin

Stable Identifier
R-HSA-9938539
Type
Reaction [transition]
Species
Homo sapiens
Compartment
ReviewStatus
5/5
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The proteolytic cleavage of high molecular weight kininogen (HK), encoded by the KNG1 gene, converts a single-chain protein (depicted here as KNG1(19–644)) into a two-chain cleaved kininogen, releasing the vasoactive peptide bradykinin (KNG1(381-389)) (Kerbirou DM and Griffin JH 1979; Lottspeich F et al. 1985; Kellerman J et al. 1986). In vivo, this reaction is catalyzed by activated plasma kallikrein, takes places within the kallikrein:kininogen:cellsurface receptor complex, primarily on the endothelial cell surface, and results in the release of kallikrein and bradykinin (Motta G et al. 1998; Zhao Y et al., 2001). Bradykinin binds to the B2 receptor (B2R), triggering inflammatory responses in a wide variety of cells. Cleaved kininogen has been implicated in the regulation of angiogenesis and cell adhesion (Asakura S et al., 1992; Asakura S et al., 1998; reviewed by Guo YL & Colman RW, 2005; Schmaier AH, 2016).
Participants
Participates
Catalyst Activity

serine-type endopeptidase activity of kallikrein:KNG1:C1QBP, C1QBP:KRT1, PLAUR:KRT1 [plasma membrane]

Orthologous Events
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Reviewed
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