Plasma protease C1 inhibitor (P97290)

Uniprot ID P97290
Protein Name Plasma protease C1 inhibitor
Gene Name Serping1
Species Mus musculus (Mouse)
Signal peptide(a) Y Secretome P(b) 0.746
Function Activation of the C1 complex is under control of the C1-inhibitor. It forms a proteolytically inactive stoichiometric complex with the C1r or C1s proteases. May play a potentially crucial role in regulating important physiological pathways including complement activation, blood coagulation, fibrinolysis and the generation of kinins. Very efficient inhibitor of FXIIa. May inhibit chymotrypsin and kallikrein.
GO - Molecular function
  • serine-type endopeptidase inhibitor activity : IDA:MGI
GO - Biological process
  • blood coagulation : IEA:UniProtKB-KW
  • complement activation, classical pathway : IEA:UniProtKB-KW
  • fibrinolysis : IEA:UniProtKB-KW
  • innate immune response : IEA:UniProtKB-KW
  • negative regulation of complement activation, lectin pathway : ISS:UniProtKB
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(a) The Signal peptide D-score cutoff for "YES"(having signal peptide) is 0.45.
(b) Non-classically secreted proteins should obtain an NN-score(Neural Networks score) exceeding the normal threshold of 0.5, but not at the same time be predicted to contain a signal peptide.