Recombinant Mouse Periostin/OSF-2 Protein, CF

Catalog # 2955-F2 | R&D Systems, Inc. a Bio-Techne Brand
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2955-F2-050
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Key Product Details

Accession #

NP_056599

Source

Sf 21 (baculovirus)

Conjugate

Unconjugated

Applications

Bioactivity

Product Specifications

Source

Spodoptera frugiperda, Sf 21 (baculovirus)-derived mouse Periostin/OSF-2 protein
Asn24-Gln811, with a C-terminal 6-His tag

Purity

>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.

Endotoxin Level

<0.10 EU per 1 μg of the protein by the LAL method.

N-terminal Sequence Analysis

Asn24

Predicted Molecular Mass

88.5 kDa

SDS-PAGE

90 kDa, reducing conditions

Activity

Measured by its ability to induce adhesion of ATDC5 mouse chondrogenic cells.
Immobilized Recombinant Mouse Periostin/OSF‑2 at 10 µg/mL (100 µL/well) induces >50% cell adhesion.

Formulation, Preparation and Storage

2955-F2
Formulation Lyophilized from a 0.2 μm filtered solution in Tris-Citrate and NaCl.
Reconstitution
Reconstitute at 100 μg/mL in sterile PBS.

Reconstitution Buffer Available:
Size / Price
Qty
Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: Periostin/OSF-2

Periostin, also known as OSF-2, is a secreted matricellular protein with functions in extracellular matrix formation, cell migration, and inflammation (1). It is secreted as a 90 kDa monomer that can aggregate into >170 kDa higher-order multimers (2). Periostin contains an N-terminal EMI domain followed by four tandem FAS1 domains (3). Mature mouse Periostin shares 91% and 98% aa sequence identity with mouse and rat Periostin, respectively. Alternative splicing generates additional isoforms with various deletions in the C-terminal region following the FAS domains. Periostin is expressed by mesenchymal cells such as vascular smooth muscle cells, fibroblasts, osteoblasts, and odontoblasts in developing teeth (4-7). It is up-regulated in many carcinomas (2, 8). Periostin binds to Integrins alphav beta3 and alphav beta5 (2, 9), leading to enhanced cell adhesion and cell migration (2, 5, 6). It enhances Fibronectin and Collagen I production and promotes collagen fibrillogenesis (10, 11). It also induces epithelial-mesenchymal transition, tumor growth, invasion, and metastasis (9). Periostin induces the expression of VEGF R2 on endothelial cells and VEGF-C in tumor cells, and it can induce tumor lymphangiogenesis (8, 12). Periostin plays an important role in heart valve development and tissue healing after myocardial infarction (5, 13, 14). In asthma, it is upregulated in bronchial epithelium and plays both destructive and protective roles by inducing eosinophil infiltration and inhibiting goblet cell metaplasia and mucus production, respectively (15, 16).

References

  1. Liu, A.Y. et al. (2014) Matrix Biol. 37:150.
  2. Gillan, L. et al. (2002) Cancer Res. 62:5358.
  3. Takeshita, S. et al. (1993) Biochem. J. 294:271.
  4. Kruzynska-Frejtag, A. et al. (2004) Dev. Dyn. 229:857.
  5. Lindner, V. et al. (2005) Arterioscler. Thromb. Vasc. Biol. 25:77.
  6. Horiuchi, K. et al. (1999) J. Bone Miner. Res. 14:1239.
  7. Li, G. et al. (2006) Atherosclerosis 188:292.
  8. Shao, R. et al. (2004) Mol. Cell. Biol. 24:3992.
  9. Yan, W. and R. Shao (2006) J. Biol. Chem. 281:19700.
  10. Erkan, M. et al. (2007) Gastroenterology 132:1447.
  11. Norris, R.A. et al. (2007) J. Cell. Biochem. 101:695.
  12. Kudo, Y. et al. (2012) PLoS One 7:e44488.
  13. Snider, P. et al. (2008) Circ. Res. 102:752.
  14. Kuhn, B. et al. (2007) Nat. Med. 13:962.
  15. Blanchard, C. et al. (2008) Mucosal Immunol. 1:289.
  16. Sehra, S. et al. (2011) J. Immunol. 186:4959.

Long Name

Osteoblast Specific Factor 2

Alternate Names

Fasciclin I-like, OSF-2, OSF2, POSTN, TRIF52

Entrez Gene IDs

10631 (Human); 50706 (Mouse); 361945 (Rat)

Gene Symbol

POSTN

UniProt

NP_056599

Product Documents for Recombinant Mouse Periostin/OSF-2 Protein, CF

Certificate of Analysis

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Product Specific Notices for Recombinant Mouse Periostin/OSF-2 Protein, CF

For research use only

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