Selected-GenAtlas references SOURCE GeneCards NCBI Gene Swiss-Prot Ensembl
HGNC UniGene Nucleotide OMIM UCSC
Home Page
FLASH GENE
Symbol CTSG contributors: mct/npt/pgu - updated : 23-11-2017
HGNC name cathepsin G
HGNC id 2532
PROTEIN
PHYSICAL PROPERTIES
STRUCTURE
motifs/domains
  • chymotrypsin-like proteinase (see SPAS@)
  • HOMOLOGY
    intraspecies homolog to neutrophil elastase
    Homologene
    FAMILY
  • peptidase S1 family
  • CATEGORY enzyme , immunity/defense
    SUBCELLULAR LOCALIZATION extracellular
        plasma membrane
        intracellular
    intracellular,cytoplasm,cytosolic,granule
    intracellular,nucleus
    text stored in the azurophil granules of neutrophil granulocytes
    basic FUNCTION
  • granule serine protease, oxygen independent phagocytosis of Gram- bacteria
  • may participate in the killing and digestion of engulfed pathogens, and in connective tissue remodeling at sites of inflammation
  • host-derived chemotactic agonist for FPRL1 and expand the functional scope of this receptor in inflammatory and immune responses
  • may play a role in the progression to heart failure by activating angiotensin II, leading to detrimental effects on the heart
  • activates F8 to a partially active form while having only a minor inactivating effect on thrombin-activated F8a
  • it is possible that cathepsin G from neutrophils and monocytes may provide some pro-coagulant effect by activating F8
  • role in antigen presentation and immune-related events
  • CTSG and ELANE are involved in the pathogenesis of a number of inflammatory disorders
  • neutrophil-derived serine protease, inducing myocyte detachment and apoptosis by anoikis through down-regulation of focal adhesion (FA) signaling
  • during neutrophil activation, CTSG regulates the secretion/release of multiple peptide modulators of neutrophil functions, including ANXA1 and CAMP
  • ELANE and CTSG bind to the surface of cancer cells, presumably to a cell surface receptor, and subsequently undergo clathrin pit-mediated endocytosis
  • neutrophil CTSG is a physiologic modulator of platelet thrombus formation
  • importance of the cathepsin G (CTSG) in the context of arterial myeloid cell recruitment
  • is immobilized on arterial endothelium where it activates leukocytes to firmly adhere engaging integrin clustering, a process of crucial importance to achieve effective adherence under high-shear flow
  • may play an important role in muscle inflammatory cells infiltration by increasing the permeability of vascular endothelial cell
  • CELLULAR PROCESS protein, degradation
    PHYSIOLOGICAL PROCESS
    PATHWAY
    metabolism
    signaling
    a component
    INTERACTION
    DNA
    RNA
    small molecule
    protein
  • F2RL3, mediating neutrophil platelet interaction at sites of vascular injury
  • IL33 is processed into mature bioactive forms by neutrophil elastase and cathepsin G
  • CTSG can process ANXA1 and CAMP to generate FPR1, FPR2 agonists, qand the more striking finding is the absolute requirement for CTSG in their efficient release/secretion from activated neutrophils
  • cytotoxic function for the serine protease CTSG and SERPINB1 is critical for maintaining polymorphonuclear neutrophils (PMNs) survival by antagonizing intracellular CTSG activity
  • proteolytic cleavage of PLTP by CTSG may enhance the injurious inflammatory responses that occur in chronic obstructive pulmonary disease (COPD)
  • LTF increases the catalytic activity of CTSG at physiological concentration, with its highest enhancing capacity under acidic (pH 5.0) conditions, and broadens the substrate selectivity of CTSG
  • CTSG is directly engaged in CASP4 activation by a bacterial ligand, which is responsible for cell death and IL1A secretion in human gingival fibroblasts (HGFs)
  • cell & other
    REGULATION
    ASSOCIATED DISORDERS
    corresponding disease(s)
    Other morbid association(s)
    TypeGene ModificationChromosome rearrangementProtein expressionProtein Function
    constitutional       gain of function
    in dermatomyositis patients and correlated with disease activity
    Susceptibility
    Variant & Polymorphism
    Candidate gene
    Marker
  • potential of ELANE and CTSG to be used as markers for early detection of infection
  • Therapy target
    SystemTypeDisorderPubmed
    bloodcoagulation 
    potential as a target for novel anti-thrombotic therapies
    ANIMAL & CELL MODELS