Periostin/OSF-2 Overexpression Lysate

Novus Biologicals | Catalog # NBP2-11089

Novus Biologicals
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Key Product Details

Species

Human

Applications

Western Blot

Product Summary for Periostin/OSF-2 Overexpression Lysate

Periostin/OSF-2 Transient Overexpression Lysate


Expression Host: HEK293T

Plasmid: RC227934

Accession#: NM_001135935

Protein Tag: C-MYC/DDK

You will receive 1 vial of lysate (100ug), 1 vial of empty vector negative control (100ug), and 1 vial of 2xSDS sample buffer (250ul). Each vial of cell lysate contains 100ug of total protein (at 1 mg/ml). The 2xSDS Sample Buffer consists of 4% SDS, 125mM Tris-HCl pH6.8, 10% Glycerol, 0.002% Bromophenol blue, 100mM DTT.

Product Specifications

Application Notes

This product is intended for use as a positive control in Western Blot. Overexpression of the target protein was confirmed using an antibody to DDK (FLAG) epitope tag (NBP1-71705) present on the protein construct.

Each vial of cell lysate contains 100ug of total protein which should be sufficient for 20-50 reactions. Depending on over-expression level, antibody affinity and detection system, some lysates can go as low as 0.1 ug per load. We recommend starting with 5ug of cell lysate. Add an equal amount of cell lysate and 2X SDS Sample buffer and boil the SDS samples for 10 minutes before loading.

Theoretical MW

87.1 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Type

Overexpression

Scientific Data Images for Periostin/OSF-2 Overexpression Lysate

Western Blot: Periostin/OSF-2 Overexpression Lysate [NBP2-11089]

Western Blot: Periostin/OSF-2 Overexpression Lysate [NBP2-11089]

Western Blot: Periostin Overexpression Lysate (Adult Normal) [NBP2-11089] Left-Empty vector transfected control cell lysate (HEK293 cell lysate); Right -Over-expression Lysate for Periostin.

Formulation, Preparation, and Storage

Formulation

RIPA buffer

Concentration

The exact concentration of the protein of interest cannot be determined for overexpression lysates. Please contact technical support for more information.

Shipping

The product is shipped with dry ice or equivalent. Upon receipt, store it immediately at the temperature recommended below.

Storage

Store at -80C. Avoid freeze-thaw cycles.

Background: Periostin/OSF-2

Periostin is a disulfide linked 90 kDa 811 amno acid protein originally isolated as a osteoblastspecific factor that functions as a cell adhesion molecule for preosteoblasts and is thought to be involved in osteoblast recruitment, attachment and spreading. Additionally, periostin expression has previously been shown to be significantly increased by both transforming growth factor beta-1(TGFbeta1) and bone morphogenetic protein (BMP)-2. OSF-2 has a typical signal sequence, followed by a cysteine-rich domain, a fourfold repeated domain and a C-terminal domain. The fourfold repeated domain of OSF-2 shows homology with the insect protein fasciclin. Periostin mRNA is expressed in the developing mouse embryonic and fetal heart, and that it is localized to the endocardial cushions that ultimately divide the primitive heart tube into a four-chambered heart.

Long Name

Osteoblast Specific Factor 2

Alternate Names

Fasciclin I-like, OSF-2, OSF2, POSTN, TRIF52

Gene Symbol

POSTN

Additional Periostin/OSF-2 Products

Product Documents for Periostin/OSF-2 Overexpression Lysate

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot or batch number in the search box below.

Product Specific Notices for Periostin/OSF-2 Overexpression Lysate

HEK293T cells in 10-cm dishes were transiently transfected with a non-lipid polymer transfection reagent specially designed and manufactured for large volume DNA transfection. Transfected cells were cultured for 48hrs before collection. The cells were lysed in modified RIPA buffer (25mM Tris-HCl pH7.6, 150mM NaCl, 1% NP-40, 1mM EDTA, 1xProteinase inhibitor cocktail mix, 1mM PMSF and 1mM Na3VO4, and then centrifuged to clarify the lysate. Protein concentration was measured by BCA protein assay kit.

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Lysates are guaranteed for 6 months from date of receipt.

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