Periostin (PN, POSTN), 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 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.

Optimal dilution of the Periostin antibody should be determined by the researcher.

Recombinant full-length human protein was used as the immunogen for the Periostin antibody.

Store the Periostin antibody at 2-8oC (with azide) or aliquot and store at -20oC or colder (without azide).