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Symbol SFRP2 contributors: mct/pgu - updated : 16-09-2013
HGNC name secreted frizzled-related protein 2
HGNC id 10777
Location 4q31.3      Physical location : 154.701.741 - 154.710.228
Synonym name
  • secreted apoptosis releted protein 1
  • frizzled-related protein 2
  • Synonym symbol(s) FZDS2, SARP1, FRP2, SDF5
    TYPE functioning gene
    STRUCTURE 8.49 kb     3 Exon(s)
    10 Kb 5' upstream gene genomic sequence study
    MAPPING cloned Y linked N status confirmed
    Physical map
    U73B 4q31.2-q31.3 RNA, U73B small nucleolar DKFZp434D0215 4q31.23 SH3 domain protein D19 LOC391704 4 similar to Prss32 protein ESSPL 4q31.23 epidermis-specific serine protease-like protein LOC391705 4 similar to RIKEN cDNA 9930021J17 PET112L 4q27-q28 PET112-like (yeast) LOC389232 4 LOC389232 LOC389233 4 LOC389233 FBXW7 4q31.23 F-box and WD-40 domain protein 7 (archipelago homolog, Drosophila) LOC391706 4 similar to ribosomal protein S3a; 40S ribosomal protein S3a; v-fos transformation effector protein 1 FLJ32028 4q31.3 hypothetical protein FLJ32028 TIGD4 4q31.23 tigger transposable element derived 4 ARFIP1 4q31.3 ADP-ribosylation factor interacting protein 1 (arfaptin 1) LOC152667 4q31.3 similar to NEFA-interacting nuclear protein NIP30 KIAA1727 4q31.3 KIAA1727 protein LOC389234 4 LOC389234 TRIM2 4q31.3 tripartite motif-containing 2 ANXA2P1 4q21-q31 annexin A2 pseudogene 1 GAJ 4q31.3 GAJ protein KIAA0922 4q31.23 GAJ protein LOC285532 4q31.3 similar to JM5 protein TLR2 4q32 toll-like receptor 2 LOC285533 4q31.3 hypothetical protein LOC285533 SFRP2 4q31.3 secreted frizzled-related protein 2 FLJ20047 4q31.3 hypothetical protein FLJ20047 LOC389235 4 similar to protocadherin 16 precursor; fibroblast cadherin FIB1; fibroblast cadherin 1; dachsous homologue PLRG1 4q31.2-q32.1 pleiotropic regulator 1 (PRL1homolog, Arabidopsis) FGB 4q28 fibrinogen, B beta polypeptide FGA 4q28 fibrinogen, A alpha polypeptide FGG 4q28 fibrinogen, G gamma polypeptide LRAT 4q31.1-q31.23 lecithin retinol acyltransferase (phosphatidylcholine--retinol O-acyltransferase) MGC27016 4q31.3 hypothetical protein MGC27016 LOC389236 4 LOC389236 NPY2R 4q31 neuropeptide Y receptor Y2 LOC389237 4 LOC389237 FLJ21159 4q31.3 hypothetical protein FLJ21159 GUCY1A3 4q31.1-q31.2 guanylate cyclase 1, soluble, alpha 3 GUCY1B3 4q31.3-q33 guanylate cyclase 1, soluble, beta 3 ACCN5 4q31.3-q32 amiloride-sensitive cation channel 5, intestinal TDO2 4q31-q32 tryptophan 2,3-dioxygenase CTSO 4q31-q32 cathepsin O FTHP2 4q31-q32 ferritin, heavy polypeptide pseudogene 2
    TRANSCRIPTS type messenger
    identificationnb exonstypebpproduct
    ProteinkDaAAspecific expressionYearPubmed
    3 - 2005 31.5 295 - 1997 9391078
    Type widely
       expressed in (based on citations)
    SystemOrgan level 1Organ level 2Organ level 3Organ level 4LevelPubmedSpeciesStageRna symbol
    Digestiveintestinelarge intestinecolon  
     intestinesmall intestine   
    Visualeyelens    Homo sapiens
    SystemTissueTissue level 1Tissue level 2LevelPubmedSpeciesStageRna symbol
    Epithelialsensoryvisualinner nuclear layer 
    SystemCellPubmedSpeciesStageRna symbol
    Visualepithelial cell Homo sapiens
    cell lineage
    cell lines
    at STAGE
  • a frizzled-like cysteine-rich domain
  • a conserved hydrophilic carboxyterminal domain
    interspecies homolog to Drosophila frizzled polarity
    homolog to murine Sfrp 2
  • secreted frizzled-related protein (sFRP) family
  • CATEGORY secretory , signaling
    basic FUNCTION
  • likely involved in WNT binding
  • WNT-frizzled proteins signaling pathways
  • may regulate hematopoietic stem cells
  • involved in embryonic development as well as pathological conditions including bone and myocardial disorders and cancer
  • having role as an enhancer of Wnt/beta-catenin signaling, a result with biological impact for both normal development and diverse pathologies such as tumorigenesis
  • augments canonical Wnt3a/beta-catenin signaling at the level of its cell surface receptor
  • potential enhancer of canonical Wnt signaling and therefore has a possible role as a paracrine/autocrine positive modulator of this key cellular signal transduction pathway
  • SFRP1, SFRP2 can either promote or suppress Wnt/CTNNB1 signaling, depending on cellular context, concentration and most likely the expression pattern of Fzd receptors
  • SFRP1, SFRP2 play a role in lens development, at least in part, by regulating aspects of WNT/CTNNB1 signaling in lens epithelial cells
  • is a key profibrotic cytokine in the heart
  • SFRP2 enhanced osteo-/dentinogenic differentiation via Osterix, a key transcription factor in stem cells derived from apical papillae (SCAPs)
  • CELLULAR PROCESS cell life, cell death/apoptosis
    signaling signal transduction
    a component
    small molecule
  • regulating the intracellular level of beta catenin
  • SFRP1, SFRP2 inhibits the ADAM10 metalloprotease, which might have important implications in pathological events, including cancer and Alzheimer disease
  • HR repressed the expression of Wnt inhibitors, including SOSTDC1, DKKL1, SFRP1, and SFRP2
  • FRP2 may promote cardiac fibrocalcification through coordinate activation of tolloid-like metalloproteinases and ALPL
  • silencing KDM2A, a histone demethylase and BCL6 co-repressor, derepressed SFRP2 transcription by increasing histone H3K4 and H3K36 methylation at the SFRP2 promoter
  • cell & other
    repressed by DKK1 that negates all SFRP2 effects on Wnt3a signaling
    corresponding disease(s)
    Other morbid association(s)
    TypeGene ModificationChromosome rearrangementProtein expressionProtein Function
    constitutional     --over  
    in retinitis pigmentosa
    tumoral       loss of function
    in colorectal cancer
    tumoral     --over  
    repressed Wnt target genes and induced changes in the expression of numerous genes related to proliferation, growth and apoptosis in gastric cancer cells
    tumoral     --low  
    silencing leads to oncogenic activation of the Wnt pathway and contributes to cervical cancer progression through the epithelial mesenchymal transition program
    tumoral     --low  
    by hypermethylation in primary hepatocellular carcinoma
    constitutional       loss of function
    of SFRP1 and SFRP2, two postulated Wnt antagonists, perturbs retinal neurogenesis
    Variant & Polymorphism
    Candidate gene
  • methylated SFRP2 and TMEFF2 detected in 94.2 p100, and 71.2 p100 of colorecal cancer (CRC), and methylation testing of fecal DNA may be a simple and promising non-invasive screening method for CRC and precancerous lesions
  • Therapy target