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SPARC - secreted protein, acidic, cysteine-rich (osteonectin)

Entrez Gene Name: secreted protein, acidic, cysteine-rich (osteonectin)
Synonyms: AA517111, Basement membrane protein-40, BM-40, MGC128090, ON, OSTEONECTIN, SPARC

Gene Summary

  • Human (6678): Secreted protein acidic and rich in cysteine/osteonectin/BM40, or SPARC, is a matrix-associated protein that elicits changes in cell shape, inhibits cell-cycle progression, and influences the synthesis of extracellular matrix (ECM) (Bradshaw et al., 2003 [PubMed 12721366]).[supplied by OMIM, Mar 2008]
  • Rat (24791): secreted structural protein; may be a component of collagen and the extracellular matrix [RGD, Feb 2006]

Cell Regulation

Regulates:
  • FN1
  • COL1A1
  • LEF1
View all 35 in IPA
Regulated by:
  • FGF2
  • TGFB1 (includes EG:21803)
  • MYC
View all 107 in IPA
Binds:
  • VEGFA
  • PRELP
  • THBS4
View all 40 in IPA
Role in cell:
  • proliferation
  • quantity
  • morphology
View all 24 in IPA
Disease:
  • osteopenia
  • prostate cancer
  • prostatic carcinoma
View all 16 in IPA

Biological Process

blood coagulation, cellular response to growth factor stimulus, heart development, inner ear development, lung development, ossification, platelet activation, platelet degranulation, regulation of cell proliferation, response to cadmium ion, response to calcium ion, response to cAMP, response to cytokine stimulus, response to ethanol, response to glucocorticoid stimulus, response to gravity, response to L-ascorbic acid, response to lead ion, response to lipopolysaccharide, response to peptide hormone stimulus, signal transduction, wound healing

Cellular Components

basement membrane, cytoplasm, extracellular matrix, extracellular region, extracellular space, intracellular, membrane-bounded vesicle, nucleus, platelet alpha granule lumen, proteinaceous extracellular matrix

Literature References

  • 19342370Sussman AN, Sun T, Krofft RM, Durvasula RV. SPARC Accelerates Disease Progression in Experimental Crescentic Glomerulonephritis.Am J Pathol 2009 May 01;174(5):1827-36
  • 9524110Gilmour DT, Lyon GJ, Carlton MB, Sanes JR, Cunningham JM, Anderson JR, Hogan BL, Evans MJ, Colledge WH. Mice deficient for the secreted glycoprotein SPARC/osteonectin/BM40 develop normally but show severe age-onset cataract formation and disruption of the lens.EMBO J 1998 Apr 1;17(7):1860-70
  • 16885349Robert G, Gaggioli C, Bailet O, Chavey C, Abbe P, Aberdam E, SabatiĆ© E, Cano A, Garcia de Herreros A, Ballotti R, Tartare-Deckert S. SPARC Represses E-Cadherin and Induces Mesenchymal Transition during Melanoma Development.Cancer Res 2006 Aug 01;66(15):7516-23
View 806 categorized literature findings and their references in IPA

Molecular Functions

calcium ion binding, collagen binding, extracellular matrix binding, protein binding

Pathways

No Data Available

Protein Domains

acidic domain, calcium ion binding, collagen binding, EF-Hand, extracellular domain, extracellular matrix binding, follistatin (FS) domain, Follistatin/Osteonectin-like EGF domain, KAZAL_FS, protein binding, Secreted protein acidic and rich in cysteine Ca binding region, signal peptide

Subcellular Locations

alpha granules, cell surface, Cytoplasm, cytoplasmic particles, extracellular matrix, Extracellular Space, intracellular space, membrane fraction, Nucleus, proteinaceous extracellular matrix, vesicles