SPARC Antilichaam / Gescheiden eiwitzuur en rijk aan cysteïne / Osteanectine

SPARC (for secreted protein acidic and rich in cysteine) is a phosphorylated, acidic, glycine-rich glycoprotein that is secreted by endothelial cells and is present in large amounts in the parietal endoderm of mouse embryos and in human placenta. It is identical to osteonectin, a protein important to bone calcification that is highly conserved between species. SPARC, which can be selectively expressed by the endothelium in response to certain types of injury, induces rounding in adherent endothelial cells in vitro. It regulates endothelial barrier function through F-Actin-dependent changes in cell shape, coincident with the appearance of intercellular gaps, which provide a paracellular pathway for extravasation of macromolecules.

Immunohistochemistry (FFPE) : 1-2 µg/mL, Western blot: 2-4 µg/mL

P09486

Human

A portion of amino acids 1-200 from human SPARC protein was used as the immunogen for the SPARC antibody.

OSTN/3761

IHC-P, WB

Protein G affinity

Purified

This SPARC antibody is available for research use only.

Aliquot the SPARC antibody and store frozen at -20°C or colder. Avoid repeated freeze-thaw cycles.

0.2 mg/mL in 1X PBS with 0.1 mg/mL BSA (US sourced), 0.05% sodium azide

Optimal dilution of the SPARC antibody should be determined by the researcher.

Secreted

IHC staining of FFPE human tonsil tissue with SPARC antibody (clone OSTN/3761) . HIER: boil tissue sections in pH 9 10mM Tris with 1mM EDTA for 20 min and allow to cool before testing.