Background:

Periostin (PN), also designated osteoblast-specific factor 2 (OSF-2), is a disulfide linked protein originally isolated as a osteoblast-specific factor. Periostin is a secreted protein that binds heparin and functions as a ligand for alpha(V)beta and alpha(V)beta integrins. In preosteoblasts, Periostin acts as a cell adhesion molecule and plays a role in osteoblast recruitment, spreading and attachment. Periostin is mainly detected in lower gastrointestinal tract, aorta, stomach, placenta, uterus and breast tissues but is up-regulated in epithelial ovarian tumors and overexpressed in breast cancer. Expression of Periostin is increased by bone morphogenetic protein (BMP2) and transforming growth factor β 1(TGF β 1). Periostin contains a typical signal sequence, followed by a cysteine-rich domain, a fourfold repeated domain, which shows homology with the insect protein fasciclin, and a C-terminal domain.

Specificity:

Periostin polyclonal antibody detects endogenous levels of Periostin protein.

Alternative names:

PN, OSF-2, POSTN, OSF2, Fasciclin-I like, MGC119510, MGC119511, OSF 2, OSF-2, OSF2, Osteoblast specific factor 2 (fasciclin I like), Osteoblast specific factor 2, Osteoblast specific factor, Osteoblast-specific factor 2, PDLPOSTN, Periodontal ligament specific periostin, Periostin, Periostin isoform thy2, Periostin isoform thy4, Periostin isoform thy6, Periostin isoform thy8, Periostin osteoblast specific factor, PN, POSTN, POSTN, RP11 412K4.1,

Species reactivity:

Human

Host:

Rabbit

Ig type:

Rabbit IgG, 1mg/ml in PBS with 0.02% sodium azide, 50% glycerol, pH7.2

Immunogen:

recombinant protein

Purification & Purity:

ProA affinity purified

Molecular weight:

89 kDa

Applications:

WB FC

Usage:

WB:1:500-1:2,000 FC:1:50-1:100

Storage:

Store at +4°C after thawing. Aliquot store at -20°C or -80°C. Avoid repeated freeze / thaw cycles.

Precautions:

For research use only, not for use in diagnostic procedure.

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