Our Anti-Periostin C-terminal primary antibody from PhosphoSolutions is rabbit polyclonal. It detects chicken, human, mouse, and rat Periostin C-terminal and is antigen affinity purified. It is great for use in WB, IHC.
Western blot of rat lung lysate showing specific immunolabeling of the ~93 kDa periostin protein doublet.
Periostin is a matricellular protein, i.e. an extracellular matrix protein that interacts both with other ECM proteins and with cell-surface receptors. Like many other matricellular proteins, the function of periostin is important both in embryonic development and in the remodeling of adult tissues in response to pathological insults. Periostin was originally isolated as an osteoblast-specific marker that functions as a cell adhesion molecule for preosteoblasts and is thought to be involved in osteoblast recruitment, attachment and spreading (Kruzynska-Frejtag A. et al., 2004). Periostin has since been demonstrated to be important in heart valve development and myocardial infarction because it promotes collagen fibrogenesis, inhibits differentiation of progenitor cells into cardiomyocytes and is essential in maintaining the biomechanical properties of the adult myocardium (Norris et al., 2008).
Antigen Affinity Purified
Polyclonal
IgG
IHC, WB
Rabbit
POSTN
93 kDa
Bacterial fusion protein equivalent to a 188-amino acid polypeptide from the C-terminal region of mouse periostin which is comprised of six small alternatively-spliced exons.
Recommended that the undiluted antibody be aliquoted into smaller working volumes (10-30 uL/vial depending on usage) upon arrival and stored long term at -20° C or -80° C, while keeping a working aliquot stored at 4° C for short term. Avoid freeze/thaw cycles. Stable for at least 1 year.
Liquid
Prepared from rabbit serum by affinity purification using a column to which the fusion protein immunogen was coupled.
PBS
WB: 1:1000
IHC: 1:100
Unconjugated
Specific for endogenous levels of the ~93 kDa periostin doublet. Consistent with the fact that this antibody is made against an alternatively spliced region of periostin, this antibody recognizes only the largest two of the three forms of periostin recognized on Western blots by the Pan periostin antibody (Cat. # 1622-PERI) and also shows a distinctive staining pattern by immunohistochemistry (data not shown). The antibody works well for immunohistochemistry on paraformaldehyde-fixed sections with a simple antigen-retrieval protocol (incubate slides for 20 minutes at 90º C in 10 mM sodium citrate (pH 6.0)/ 0.1 % Tween-20).
Western blots performed on each lot.
For research use only. Not intended for therapeutic or diagnostic use. Use of all products is subject to our terms and conditions, which can be viewed on our website.
After date of receipt, stable for at least 1 year at -20°C.
Bains, SN., et al. 2012. Loss of caveolin‐1 from bronchial epithelial cells and monocytes in human subjects with asthma. Allergy, 67(12), pp.1601-1604.
