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Key Documents

Safety Information

SAB4300696

Sigma-Aldrich

Anti-Postn antibody produced in rabbit

affinity isolated antibody

Synonym(s):

Anti-Ost2, Anti-PLF, Anti-PN, Anti-peri, Anti-periostin, osteoblast specific factor

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About This Item

UNSPSC Code:
12352203
NACRES:
NA.41

biological source

rabbit

conjugate

unconjugated

antibody form

affinity isolated antibody

antibody product type

primary antibodies

clone

polyclonal

form

buffered aqueous solution

mol wt

~93 kDa

species reactivity

rat, mouse, human

concentration

1 mg/mL

technique(s)

western blot: 1:500-1:1000

isotype

IgG

immunogen sequence

(R-E-E-I-E)

NCBI accession no.

NM_006475.2

UniProt accession no.

Q15063

shipped in

wet ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

mouse ... Postn(50706)

General description

Periostin (POSTN) gene with 23 exons spanning 36 kb is mapped to chromosome 13q13.3. The gene codes for periostin, a matricellular protein that belongs to the family of non-structural matrix proteins. Periostin structure contains a signal peptide, four fasciclin-like domains (FAS1) with vitamin K-dependent γ-carboxyglutamic acid (Gla) residues, and hydrophilic C-terminal region with the heparin-binding site. The protein is mainly expressed in the periosteum, periodontal ligament, heart valves, and tendons. The antibody detects endogenous level of total periostin protein.

Immunogen

Peptide sequence around aa. 125-129 ( R-E-E-I-E), according to the protein NP_006466.2

Application

Anti-POSTN antibody produced in rabbit has been used in western blot.

Biochem/physiol Actions

Periostin (POSTN) facilitates extracellular matrix structure and organization. It acts as a collagen chaperone and regulates type I collagen fibrillogenesis. POSTN is implicated in early stages of bone formation, tissue repair, and cell recruitment and adhesion. This protein is essential for cancer stem cell maintenance and metastasis. Increased expression of POSTN has been observed in various types of cancers including prostate, breast, lung, pancreatic, ovarian, and colorectal cancer. Hence, the postn levels can be used as a prognostic biomarker for these cancers.

Features and Benefits

Evaluate our antibodies with complete peace of mind. If the antibody does not perform in your application, we will issue a full credit or replacement antibody. Learn more.

Target description

Binds to heparin. Induces cell attachment and spreading and plays a role in cell adhesion. May play a role in extracellular matrix mineralization.

Physical form

Solution in phosphate-buffered saline containing 0.02% sodium azide and 50% glycerol

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

SAB4300696-100UG:

Certificates of Analysis (COA)

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Nicolas Bonnet et al.
The Journal of biological chemistry, 284(51), 35939-35950 (2009-10-20)
Periostin (gene Postn) is a secreted extracellular matrix protein involved in cell recruitment and adhesion and plays an important role in odontogenesis. In bone, periostin is preferentially expressed in the periosteum, but its functional significance remains unclear. We investigated Postn(-/-)
Periostin Mediates Oestrogen-Induced Osteogenic Differentiation of Bone Marrow Stromal Cells in Ovariectomised Rats.
Li, et al.
BioMed Research International, 2020, 9405909-9405909 (2020)
Ilaria Malanchi et al.
Nature, 481(7379), 85-89 (2011-12-14)
Metastatic growth in distant organs is the major cause of cancer mortality. The development of metastasis is a multistage process with several rate-limiting steps. Although dissemination of tumour cells seems to be an early and frequent event, the successful initiation
Mukundan Attur et al.
FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 29(10), 4107-4121 (2015-06-21)
We investigated the role of periostin, an extracellular matrix protein, in the pathophysiology of osteoarthritis (OA). In OA, dysregulated gene expression and phenotypic changes in articular chondrocytes culminate in progressive loss of cartilage from the joint surface. The molecular mechanisms
Yan Lu et al.
The Journal of clinical investigation, 124(8), 3501-3513 (2014-07-09)
Hepatosteatosis is characterized by an aberrant accumulation of triglycerides in the liver; however, the factors that drive obesity-induced fatty liver remain largely unknown. Here, we demonstrated that the secreted cell adhesion protein periostin is markedly upregulated in livers of obese
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