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FLASH GENE
Symbol S100A7 contributors: mct - updated : 19-02-2018
HGNC name S100 calcium binding protein A7
HGNC id 10497
PROTEIN
PHYSICAL PROPERTIES
STRUCTURE
motifs/domains
  • one S100 specific Nter
  • two calcium binding domains
  • an EF-hand motif
  • central region, including only amino acids 35-80, is sufficient for full antibacterial activity
  • one zinc-binding motif, located at the C-terminus, involved in antibacterial activity
  • two EF-hand domains per subunit and two transition-metal-binding His3Asp sites at the dimer interface
  • mono polymer homomer , dimer
    HOMOLOGY
    Homologene
    FAMILY
  • S100 calcium binding protein family
  • CATEGORY structural protein
    SUBCELLULAR LOCALIZATION extracellular
        intracellular
    intracellular,cytoplasm,organelle,endoplasmic reticulum
    intracellular,cytoplasm,cytosolic
    intracellular,nucleus
    text also secreted by a non-classical secretory pathway
    basic FUNCTION
  • acting as a potent and selective chemotactic inflammatory protein for CD4+ T lymphocytes
  • may be a marker of agressive behavior in invasive breast cancer
  • might play a role in the progression of skin cancer
  • may have consequential immunobiological effects during the fetal development
  • playing a role in modulating the immune response which may be a factor in early breast tumor progression (Mandal 2007)
  • enhances survival mechanisms in breast cells through an interaction with c-jun activation domain binding protein 1 (COPS5) (West 2009)
  • may mediate some of inflammatory cytokines effects in breast cancer (West 2010)
  • psoriasin is likely produced by the structures of the ocular surface and is part of the innate immune system at the ocular surface and tear film
  • an antimicrobial role seems likely for psoriasin in sperm
  • is a positive regulator of survival and invasion of prostate cancer cells
  • estrogen-induced S100A7 expression mediated by KDM1A may downregulate breast cancer cell proliferation, implying a potential tumor suppressor-like function for S100A7
  • psoriasin plays a role in the differentiation of luminal mammary epithelial cells
  • S100A7 and koebnerisin (S100A14) are released by keratinocytes during physiological wound healing
  • Psoriasin and koebnerisin show antifibrotic effects and may lead to novel preventive and therapeutic strategies for fibroproliferative diseases
  • functional role for AGER/S100A7 signaling in linking inflammation to aggressive breast cancer development
  • contributes likely to the dysregulated differentiation process in the psoriasis epidermis
  • metal-chelating protein expressed by epithelial cells
  • CELLULAR PROCESS
    PHYSIOLOGICAL PROCESS
    PATHWAY
    metabolism
    signaling
    a component
  • constituent of epidermal diffentiation complex
  • INTERACTION
    DNA
    RNA
    small molecule metal binding,
  • Ca2+
  • protein
  • potential role of KDM1A in regulating S100A7 expression
  • S100A7 is repressed by YAP1 via the Hippo pathway
  • S100A7 induces mature IL1A expression in normal human epidermal keratinocytes, which is dependent on AGER/MAPK14 and calpain-1 as the inhibitors or knockdown of them completely decreased the expression of mature IL1A
  • cell & other
    REGULATION
    induced by OSM and IL6 in breast cancer (West 2010)
    ASSOCIATED DISORDERS
    corresponding disease(s)
    Other morbid association(s)
    TypeGene ModificationChromosome rearrangementProtein expressionProtein Function
    constitutional     --over  
    in the skin lesions of psoriasis, precancerous skin lesions, squamous cell carcinoma, basal cell carcinoma
    tumoral     --over  
    in breast cancer with poor prognosis (lobular carcinoma had higher levels compared with ductal tumours)
    tumoral     --over  
    in oral squamous cell carcinomas, and bladder cancer
    constitutional     --over  
    by keratinocytes surrounding the wound and is released into the wound exudat
    constitutional     --over  
    in psoriatic skin
    tumoral     --over  
    in high-grade ductal carcinoma in situ (DCIS) and a subset of invasive breast cancers
    Susceptibility
    Variant & Polymorphism
    Candidate gene
    Marker
  • significant increase of salivary psoriasin was observed in Systemic sclerosis (SSc) patients with pulmonary involvement when compared with other healthy and pathological controls
  • potential role of S100A7 overexpression in identifying oral lesions (OLs) with dysplasia at high risk of cancer development
  • Therapy target
    ANIMAL & CELL MODELS