Entrez Summary: This gene encodes a member of the peptidase S1 family of serine proteases. The encoded preproprotein is proteolytically processed to generate A and B chains that heterodimerize to form the mature protease. This protease cleaves complement components C2 and C4 in order to generate C3 convertase in the lectin pathway of the complement system. The encoded protease also plays a role in the coagulation cascade through cleavage of prothrombin to form thrombin. Myocardial infarction and acute stroke patients exhibit reduced serum concentrations of the encoded protein. Alternative splicing results in multiple transcript variants, at least one of which encodes an isoform that is proteolytically processed. [provided by RefSeq, Feb 2016].
UniProt Summary: N/A
Pfam DomainsGO Terms
Pfam Domains
EGF CA
Sushi
CUB
Trypsin
GO Terms
complement component C4b binding
complement activation, lectin pathway
calcium-dependent protein binding
peptidase activity
complement activation, classical pathway
serine-type endopeptidase activity
humoral immune response mediated by circulating immunoglobulin
complement activation
immunoglobulin mediated immune response
B cell mediated immunity
lymphocyte mediated immunity
adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains
humoral immune response
adaptive immune response
activation of immune response
calcium ion binding
innate immune response
leukocyte mediated immunity
positive regulation of immune response
defense response to other organism
immune effector process
regulation of immune response
positive regulation of immune system process
proteolysis
response to other organism
response to external biotic stimulus
response to biotic stimulus
defense response
extracellular space
regulation of immune system process
immune response
extracellular region
CRISPR Data
Compound HitMost Correlated Genes in ChemogenomicsTissues where Essential in the Avana Dataset (DepMap 20Q1)
Compound Hit
No hits were found.
Most Correlated Genes in Chemogenomics
No correlation found to any other genes in chemogenomics.
Tissues where Essential in the Avana Dataset (DepMap 20Q1)
Global Fraction of Cell Lines Where Essential: 0/739