Mouse Periostin/OSF-2 Isoform 2 Antibody

AF2955 9 Citations Datasheet / COA / SDS

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AF2955
AF2955-SP

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Cell Adhesion Mediated by Periostin/OSF‑2 and Neutralization by Mouse Periostin/OSF‑2 Antibody.

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Citations (9)

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Summary Data Examples Preparation and Storage Reconstitution Calculator Background Product Datasheets Related Research Areas

Mouse Periostin/OSF-2 Isoform 2 Antibody Summary

Species Reactivity

Mouse

Specificity

Detects mouse Periostin/OSF‑2 in direct ELISAs and Western blots. In direct ELISAs, less than 30% cross-reactivity with recombinant rat Periostin/OSF-2 and recombinant human Periostin/OSF-2 is observed.

Source

Polyclonal Goat IgG

Purification

Antigen Affinity-purified

Immunogen

S. frugiperda insect ovarian cell line Sf 21-derived recombinant mouse Periostin/OSF‑2
Asn24-Gln811
Accession # Q62009

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.

Endotoxin Level

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

Label

Unconjugated

Applications

Recommended Concentration

Sample

Western Blot

0.1 µg/mL

Recombinant Mouse Periostin/OSF‑2 (Catalog # 2955-F2)

Immunocytochemistry

5-15 µg/mL

See below

Neutralization

Measured by its ability to neutralize Periostin/OSF‑2-mediated adhesion of the ATDC5 mouse chondrogenic cell line. The Neutralization Dose (ND₅₀) is typically 1-5 µg/mL in the presence of 5 µg/mL Recombinant Mouse Periostin/OSF‑2.

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Data Examples

Neutralization

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Cell Adhesion Mediated by Periostin/OSF‑2 and Neutralization by Mouse Periostin/
OSF‑2 Antibody. Recombinant Mouse Periostin/OSF‑2 (Catalog # 2955‑F2), immobilized onto a microplate, supports the adhesion of the ATDC5 mouse chondrogenic cell line in a dose-dependent manner (orange line). Adhesion elicited by Recombinant Mouse Periostin/OSF‑2 (5 µg/mL) is neutralized (green line) by increasing concentrations of Goat Anti-Mouse Periostin/
OSF‑2 Isoform 2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF2955). The ND₅₀ is typically 1-5 µg/mL.

Immunocytochemistry

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Periostin/OSF‑2 in Rat Mesenchymal Stem Cells. Periostin/OSF‑2 was detected in immersion fixed rat mesenchymal stem cells differentiated to osteoblasts using Goat Anti-Mouse Periostin/OSF‑2 Isoform 2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF2955) at 10 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Goat IgG Secondary Antibody (red; Catalog # NL001) and counterstained with DAPI (blue). Specific staining was localized to cytoplasm. View our protocol for Fluorescent ICC Staining of Cells on Coverslips.

Reconstitution Calculator

Preparation and Storage

Reconstitution

Reconstitute at 0.2 mg/mL in sterile PBS.

Reconstitution Buffer Available

Reconstitution Buffer 1 (PBS)

Shipping

The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C

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.
6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: Periostin/OSF-2

Mouse Periostin, also known as OSF-2 (osteoblast-specific factor 2) is a 170 kDa, secreted, homodimeric protein that belongs to the periostin family of the FAS1 superfamily of molecules (1‑4). It is a TGF-beta inducible molecule that serves as both an adhesion molecule and tumor suppressor (2, 5, 6, 7). It is synthesized as a 838 amino acid (aa) precursor that contains a 23 aa signal sequence and an 815 aa mature region (2, 8). It is unknown if the molecule has any significant glycosylation (2). Based on human OSF-2, the homodimer is not disulfide-linked (3). The molecule consists of two distinct regions. The N-terminus contains an 55 aa EMI domain, while the C-terminus contains four, 130 aa fasciculin type 1 (or FAS1) domains. The EMI domain is cysteine-rich and shows a highly basic alpha -helix (9). Each FAS1 repeat exhibits a novel 7-stranded beta -wedge with a multiple alpha -helix fold (1, 8). Multiple alternate splice forms are known to exist C-terminal (aa 672‑812) to the four-fold FAS1 repeats. These mature molecules are 760, 761, 787 and 788 aa in length and show block deletions of 54 aa, 27 aa and/or 28 aa (10). The significance of the alternate splice forms is not clear. They do, however, appear to be temporally regulated (6). OSF-2 is known to bind to alpha _v beta ₃ and alpha _v beta ₅ integrins (3). It is synthesized by smooth muscle cells, fibroblasts and osteoblasts (2, 5, 7). Mature mouse OSF-2 shares 98%, 92% and 91% aa identity with rat, canine and human OSF‑2, respectively.

References

Clout, N.J. and D. Tisi (2003) Structure 11:197.
Horiuchi, K. et al. (1999) J. Bone Miner. Res. 14:1239.
Gillan, L. et al. (2002) Cancer Res. 62:5358.
Litvin, J. et al. (2005) Anat. Rec. A Discov. Mol. Cell. Evol. Biol. 287A:1205.
Lindner, V. et al. (2005) Arterioscler. Thromb. Vasc. Biol. 25:77.
Kruzynska-Frejtag, A. et al. (2004) Dev. Dyn. 229:857.
Yoshioka, N. et al. (2002) Exp. Cell Res. 279:91.
Takeshita, S. et al. (1993) Biochem. J. 294:271.
Callebaut, I. et al. (2003) Biochem. Biophys. Res. Commun. 300:619.
Swiss-Prot Accession # Q62009.

Long Name

Osteoblast Specific Factor 2

Entrez Gene IDs

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

Alternate Names

Fasciclin I-like; MGC119510; MGC119511; OSF2; OSF-2; OSF-2osteoblast specific factor 2 (fasciclin I-like); OSF2periodontal ligament-specific periostin; Osteoblast-specific factor 2; PDLPOSTN; periostin isoform thy2; periostin isoform thy4; periostin isoform thy6; periostin isoform thy8; Periostin; periostin, osteoblast specific factor; PNRP11-412K4.1; POSTN; TRIF52

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Related Research Areas

Citations for Mouse Periostin/OSF-2 Isoform 2 Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

9 Citations: Showing 1 - 9
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Multicolor quantitative confocal imaging cytometry
Authors: DL Coutu, KD Kokkaliari, L Kunz, T Schroeder
Nat. Methods, 2018;15(1):39-46.
Species: Mouse
Sample Types: Whole Tissue
Applications: IHC
Macrophage-derived granulin drives resistance to immune checkpoint inhibition in metastatic pancreatic cancer
Authors: V Quaranta, C Rainer, SR Nielsen, ML Raymant, MS Ahmed, DD Engle, A Taylor, T Murray, F Campbell, DH Palmer, DA Tuveson, A Mielgo, MC Schmid
Cancer Res., 2018;0(0):.
Species: Mouse
Sample Types: Whole Cells
Applications: Neut
Deletion of the Ste20-like kinase SLK in skeletal muscle results in a progressive myopathy and muscle weakness
Authors: BR Pryce, KN Al-Zahrani, S Dufresne, N Belkina, C Labr?che, G Patino-Lop, J Frenette, S Shaw, LA Sabourin
Skelet Muscle, 2017;7(1):3.
Species: Mouse
Sample Types: Tissue Homogenates
Applications: WB
Macrophage-secreted granulin supports pancreatic cancer metastasis by inducing liver fibrosis
Authors: SR Nielsen, V Quaranta, A Linford, P Emeagi, C Rainer, A Santos, L Ireland, T Sakai, K Sakai, YS Kim, D Engle, F Campbell, D Palmer, JH Ko, DA Tuveson, E Hirsch, A Mielgo, MC Schmid
Nat Cell Biol, 2016;0(0):.
A mouse model for dominant collagen VI disorders: heterozygous deletion of Col6a3 Exon 16.
Authors: Pan T, Zhang R, Arita M, Bogdanovich S, Adams S, Gara S, Wagener R, Khurana T, Birk D, Chu M
J Biol Chem, 2014;289(15):10293-307.
Periostin links mechanical strain to inflammation in abdominal aortic aneurysm.
Authors: Yamashita, Osamu, Yoshimura, Koichi, Nagasawa, Ayako, Ueda, Koshiro, Morikage, Noriyasu, Ikeda, Yasuhiro, Hamano, Kimikazu
PLoS ONE, 2013;8(11):e79753.
Species: Rat
Sample Types: Whole Cells
Applications: Neut
Pressure overload-induced cardiac remodeling and dysfunction in the absence of interleukin 6 in mice.
Authors: Lai, N Chin, Gao, Mei Hua, Tang, Eric, Tang, Ruoying, Guo, Tracy, Dalton, Nancy D, Deng, Aihua, Tang, Tong
Lab Invest, 2012;92(11):1518-26.
Species: Mouse
Sample Types: Tissue Homogenates
Applications: WB
Quantitative analysis of the secretome of TGF-beta signaling-deficient mammary fibroblasts.
Authors: Xu BJ, Yan W, Jovanovic B
Proteomics, 2010;10(13):2458-70.
Species: Mouse
Sample Types: Cell Lysates
Applications: WB
Periostin, a member of a novel family of vitamin K-dependent proteins, is expressed by mesenchymal stromal cells.
Authors: Coutu DL, Wu JH, Monette A, Rivard GE, Blostein MD, Galipeau J
J. Biol. Chem., 2008;283(26):17991-8001.
Species: Human
Sample Types: Cell Lysates
Applications: WB