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Human SPARCL1 / SPARC-like 1 ELISA Pair Set

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Materials provided
Capture Ab:1.0 mg/mL of mouse anti-SPARCL1 monoclonal antibody. Dilute to a working concentration of 2.0 μg/mL in CBS before coating.
Detection Ab:0.5 mg/mL mouse anti-SPARCL1 monoclonal antibody conjugated to horseradish-peroxidase (HRP). Dilute to working concentration of 1.0 μg/mL in detection antibody dilution buffer before use
Standard:Each vial contains 160 ng of recombinant SPARCL1. Reconstitute with 1 mL detection antibody dilution buffer. After reconstitution, store at -20℃ to -80℃ in a manual defrost freezer. A seven-point standard curve usi ng 2-fold serial dilutions in sample dilution buffer, and a high standard of 6000 pg/mL is recommended.
The minimum detectable dose of human SPARCL1 was determined to be approximately 93.75 pg/ml. This is defined as at least three times standard deviations above the mean optical density of 10 replicates of the zero standard.
Principle of the product
The human SPARCL1 ELISAkit is for the quantitative determination of human SPARCL1.
This ELISA Pair Set contains the basic components required for the development of sandwich ELISAs.
The Sino Biological ELISA Pair Set is a solid phase sandwich ELISA (Enzyme-Linked Immunosorbent Assay). It utilizes a monoclonal antibodyspecific for SPARCL1 coated on a 96-well plate. Standards and samples are added tothe wells, and any SPARCL1 present binds to the immobilized antibody. The wells are washedand a horseradish peroxidase conjugated mouse anti-SPARCL1monoclonal antibody is then added, producing anantibody-antigen-antibody "sandwich". The wells are again washed and TMBsubstrate solution is loaded, which produces color in proportion to the amountof SPARCL1 present in the sample. To end the enzyme reaction, the stopsolution is added and absorbances of the microwell are read at 450 nm.
Capture Antibody: Aliquot and store at -20℃ to -80℃ for up to 6 months from date of receipt. Avoid repeated freeze-thaw cycles.
Detection Antibody: Protect it from prolonged exposure to light. Aliquot and store at -20℃ to -80℃ and for up to 6 months from date of receipt. Avoid repeated freeze-thaw cycles.
Standard: Store lyophilized Standard at -20℃ to -80℃ for up to 6 months from date of receipt. Aliquot and store the reconstituted Standard at -80℃ for up to 1 month. Avoid repeated freeze-thaw cycles.

SPARC-like protein 1 (SPARCL1; also known as SC1, high endothelial venule protein, or hevin) is an extracellular matrix-associated, secreted glycoprotein belonging to the secreted protein acidic and rich in cysteine (SPARC) family of matricellular proteins. It contains three conserved structural domains that are implicated in the regulation of cell adhesion, migration, and proliferation. SPARCL1 is expressed during embryogenesis and tissue remodeling and is especially prominent in brain and vasculature. Its down-regulation in a number of cancers and the possibility of its functional compensation by SPARC has led to recent interest in hevin as a tumor suppressor and regulator of angiogenesis. SPARCL1 has antiadhesive properties, and loss of SPARCL1 expression is associated with increased proliferative activity and cell cycle progression. It is suggested that it may influence multiple cellular processes during distinct stages of brain development and function. In addition, SPARCL1 can influence the function of astroglial cells in the developing and mature central nervous system (CNS).

  • Sullivan MM, et al. (2004) Hevin/SC1, a matricellular glycoprotein and potential tumor-suppressor of the SPARC/BM-40/Osteonectin family. Int J Biochem Cell Biol. 36(6): 991-6.
  • Esposito I, et al. (2007) Tumor-suppressor function of SPARC-like protein 1/Hevin in pancreatic cancer. Neoplasia. 9(1): 8-17.
  • Weimer JM, et al. (2008) A BAC transgenic mouse model to analyze the function of astroglial SPARCL1 (SC1) in the central nervous system. Glia. 56(9): 935-41.
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