SPARC Human

CAT: 0793-32-13448-200Size: 200 µgDry Ice: NoHazardous: No
CAT#:0793-32-13448-200Size:200 µg
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24/48H Stock Items & 2 to 6 Weeks non Stock Items.
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Description
Source: Escherichia Coli.Sterile Filtered White lyophilized (freeze-dried) powder.SPARC, an acronym for “secreted protein, acidic and rich in cysteine”, is also known as osteonectin or BM-40. It is the founding member of a family of secreted matricellular proteins with similar domain structure. The 303 amino acid, 43 kDa protein contains a 17 aa signal sequence, an N-terminal acidic region that binds calcium, a follistatin domain containing Kazal-like sequences, and a C-terminal extracellular calcium (EC) binding domain with two EF-hand motifs. SPARC is produced by fibroblasts, capillary endothelial cells, platelets and macrophages, especially in areas of tissue morphogenesis and remodeling. SPARC shows context-specific effects, but generally inhibits adhesion, spreading and proliferation, and promotes collagen matrix formation. For endothelial cells, SPARC disrupts focal adhesions and binds and sequesters PDGF and VEGF. SPARC is abundantly expressed in bone, where it promotes osteoblast differentiation and inhibits adipogenesis.Secreted Protein Acidic & Rich in Cysteine Human Recombinant produced in E.Coli is a single, non- glycosylated polypeptide chain containing 286 amino acids and having a molecular mass of 32.7kDa.SPARC is purified by proprietary chromatographic techniques.
Product Name Alternative
Osteonectin, ON, Basement-membrane protein 40, BM-40, SPARC, Secreted Protein acidic and Rich in Cysteine.
Applications
Functional Assay
Purification
Greater than 98.0% as determined by: (a) Analysis by RP-HPLC. (b) Analysis by SDS-PAGE.
Components
Lyophilized from a 0.2μm filtered concentrated solution in PBS, pH 7.4.It is recommended to reconstitute the lyophilized SPARC in sterile 18M Omega -cm H2O not less than 100μg/ml, which can then be further diluted to other aqueous solutions.
Storage Conditions
Lyophilized SPARC although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Secreted Protein Acidic & Rich in Cysteine should be stored at 4°C between 2-7 days and for future use below -18°C.Please prevent freeze-thaw cycles.
Applications Notes
The ED50 as determined by its ability to inhibit the cell growth of Mv1Lu mink lung epithelial cells is < 3.0 μg/mL, corresponding to a specific activity of > 333 IU/mg.
Amino Acids
APQQEALPDE TEVVEETVAE VTEVSVGANP VQVEVGEFDD GAEETEEEVV AENPCQNHHC KHGKVCELDE NNTPMCVCQD PTSCPAPIGE FEKVCSNDNK TFDSSCHFFA TKCTLEGTKK GHKLHLDYIG PCKYIPPCLD SELTEFPLRM RDWLKNVLVT LYERDEDNNL LTEKQKLRVK KIHENEKRLE AGDHPVELLA RDFEKNYNMY IFPVHWQFGQ LDQHPIDGYL SHTELAPLRA PLIPMEHCTT RFFETCDLDN DKYIALDEWA GCFGIKQKDI DKDLVI.

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