Periostin/OSF-2 Protein, Human, Recombinant (aa 22-836, His)

Periostin is a matricellular protein that is expressed in several tissues during embryonic development; however, its expression in adults is mostly restricted to collagen-rich connective tissues. Periostin is expressed only briefly during kidney development, but it is not normally detected in the adult kidney. Recent evidence has revealed that periostin is aberrantly expressed in several forms of chronic kidney disease (CKD), and that its expression correlates with the degree of interstitial fibrosis and the decline in renal function.

Pack Size	Availability	Price/USD
100 μg	5 days	$ 511.00
500 μg	5 days	$ 2,040.00
1 mg	5 days	$ 3,410.00

Pack Size

Availability

Price/USD

Quantity

100 μg

5 days

$ 511.00

500 μg

5 days

$ 2,040.00

1 mg

5 days

$ 3,410.00

Description

Species	Human
Expression System	HEK293
Tag	C-His
Accession Number	Q15063
Synonyms	Periostin, POSTN, Fasciclin I-like, TRIF52, OSF-2, PNRP11-412K4.1, PN, PDLPOSTN, OSF2
Construction	Recombinant Human Periostin/OSF-2 Protein is expressed from HEK293 with His tag at the C-Terminus. It contains Asn22-Gln836.[Accession \|Q15063]
Protein Purity	> 95% as determined by Tris-Bis PAGE; > 95% as determined by HPLC
Molecular Weight	The protein has a predicted MW of 92.1 kDa. Due to glycosylation, the protein migrates to 93-100 kDa based on Tris-Bis PAGE result.

Endotoxin	Less than 1EU per μg by the LAL method.
Formulation	Lyophilized from 0.22μm filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.
Reconstitution	Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/ml is recommended. Dissolve the lyophilized protein in distilled water.
Stability & Storage	-20 to -80°C for 12 months as supplied from date of receipt. -20 to -80°C for 3-6 months in unopened state after reconstitution. 2-8°C for 2-7 days after reconstitution. Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.
Shipping	In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Research Background	Periostin is a matricellular protein that is expressed in several tissues during embryonic development; however, its expression in adults is mostly restricted to collagen-rich connective tissues. Periostin is expressed only briefly during kidney development, but it is not normally detected in the adult kidney. Recent evidence has revealed that periostin is aberrantly expressed in several forms of chronic kidney disease (CKD), and that its expression correlates with the degree of interstitial fibrosis and the decline in renal function.