Entrez Summary: This gene encodes a protein that belongs to the serine protease family. The encoded protein contains a type II transmembrane domain, a receptor class A domain, a scavenger receptor cysteine-rich domain and a protease domain. Serine proteases are known to be involved in many physiological and pathological processes. This gene was demonstrated to be up-regulated by androgenic hormones in prostate cancer cells and down-regulated in androgen-independent prostate cancer tissue. The protease domain of this protein is thought to be cleaved and secreted into cell media after autocleavage. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2008].
UniProt Summary: Serine protease that proteolytically cleaves and activates the viral spike glycoproteins which facilitate virus- cell membrane fusions; spike proteins are synthesized and maintained in precursor intermediate folding states and proteolysis permits the refolding and energy release required to create stable virus-cell linkages and membrane coalescence. Facilitates human SARS coronavirus (SARS-CoV) infection via two independent mechanisms, proteolytic cleavage of ACE2, which might promote viral uptake, and cleavage of coronavirus spike glycoprotein which activates the glycoprotein for cathepsin L- independent host cell entry. Proteolytically cleaves and activates the spike glycoproteins of human coronavirus 229E (HCoV-229E) and human coronavirus EMC (HCoV-EMC) and the fusion glycoproteins F0 of Sendai virus (SeV), human metapneumovirus (HMPV), human parainfluenza 1, 2, 3, 4a and 4b viruses (HPIV). Essential for spread and pathogenesis of influenza A virus (strains H1N1, H3N2 and H7N9); involved in proteolytic cleavage and activation of hemagglutinin (HA) protein which is essential for viral infectivity. {ECO:0000269|PubMed:21068237, ECO:0000269|PubMed:21325420, ECO:0000269|PubMed:23536651, ECO:0000269|PubMed:23966399, ECO:0000269|PubMed:24027332, ECO:0000269|PubMed:24227843}.
Pfam DomainsGO Terms
Pfam Domains
SRCR
Trypsin
DUF1986
GO Terms
positive regulation of viral entry into host cell
protein autoprocessing
regulation of viral entry into host cell
scavenger receptor activity
serine-type peptidase activity
positive regulation of viral life cycle
positive regulation of viral process
regulation of viral life cycle
protein processing
serine-type endopeptidase activity
regulation of viral process
regulation of symbiosis, encompassing mutualism through parasitism
protein maturation
positive regulation of multi-organism process
endocytosis
import into cell
regulation of multi-organism process
proteolysis
integral component of plasma membrane
vesicle-mediated transport
gene expression
CRISPR Data
Compound HitMost Correlated Genes in ChemogenomicsTissues where Essential in the Avana Dataset (DepMap 20Q1)