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- Table of Contents
Designing a Western blot for SPARC? The guide has the expected band size, antibodies backed by real blot images, the controls to run alongside, and protocols taken from published papers.
Open the SPARC Western Blot GuideFacts about SPARC.
There are two calcium binding sites; an acidic domain that binds 5 to 2 Ca(2+) with a low affinity and an EF-hand loop that binds a Ca(2+) ion with a high affinity. .
| Human | |
|---|---|
| Gene Name: | SPARC |
| Uniprot: | P09486 |
| Entrez: | 6678 |

| Belongs to: |
|---|
| SPARC family |

Basement-membrane protein 40; BM-40; ONcysteine-rich protein; Osteonectin; Secreted protein acidic and rich in cysteine; secreted protein, acidic, cysteine-rich (osteonectin); SPARC
Mass (kDA):
34.632 kDA

| Human | |
|---|---|
| Location: | 5q33.1 |
| Sequence: | 5; NC_000005.10 (151661096..151686915, complement) |
Secreted, extracellular space, extracellular matrix, basement membrane. In or around the basement membrane.





PMID: 3410046 by Lankat-Buttgereit B., et al. Cloning and complete amino acid sequences of human and murine basement membrane protein BM-40 (SPARC, osteonectin).
PMID: 2838412 by Swaroop A., et al. Molecular analysis of the cDNA for human SPARC/osteonectin/BM-40: sequence, expression, and localization of the gene to chromosome 5q31- q33.
*More publications can be found for each product on its corresponding product page