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Recombinant Human BMP-7 Biotinylated Protein

Catalog #: BT354B Datasheet / COA / SDS

Carrier Free

Catalog # Availability Size / Price Qty
BT354B-010/CF

With Carrier

Catalog # Availability Size / Price Qty
BT354B-010
Recombinant Human BMP-7 Biotinylated Protein Bioactivity
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Summary Product Datasheets Carrier Free Data Images Reconstitution Calculator Background Related Research Areas

Recombinant Human BMP-7 Biotinylated Protein Summary

Product Specifications

Purity
>85%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Endotoxin Level
<0.01 EU per 1 μg of the protein by the LAL method.
Activity
Measured by its binding ability in a functional ELISA. In a Streptavidin coated plate (Catalog # CP004), when Biotinylated Recombinant Human BMP‑7 is used at 0.25 μg/mL, it binds Recombinant Human Activin RIA/ALK-2 Fc Chimera (Catalog # 637-AR) with an ED50 of 0.15-0.9 μg/mL Measured by its ability to induce alkaline phosphatase production by ATDC5 mouse chondrogenic cells. Nakamura, K. et al. (1999) Exp. Cell Res. 250:351. The ED50 for this effect is 0.1-0.6 µg/mL.
Source
Chinese Hamster Ovary cell line, CHO-derived human BMP-7 protein
Ser293-His431
Accession #
P18075
N-terminal Sequence
Analysis
Ser293
Structure / Form
Disulfide-linked homodimer. Biotinylated protein via amines
Predicted Molecular Mass
16 kDa (unlabeled)
SDS-PAGE
15-24 kDa, reducing conditions

Product Datasheets

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BT354B (with carrier)

Product Datasheet
COA
SDS

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BT354B/CF (carrier free)

Product Datasheet
COA
SDS

Carrier Free

What does CF mean?

CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.

What formulation is right for me?

In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.

BT354B

Formulation Lyophilized from a 0.2 μm filtered solution in HCl with BSA as a carrier protein.
Reconstitution Reconstitute at 100 μg/mL in 4 mM HCl.
Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.

BT354B/CF

Formulation Lyophilized from a 0.2 μm filtered solution in HCl.
Reconstitution Reconstitute at 100 μg/mL in 4 mM HCl.
Shipping The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.

Scientific Data

Bioactivity Recombinant Human BMP-7 Biotinylated Protein Bioactivity View Larger

When Biotinylated Recombinant Human BMP-7 (BT354B) is used at 0.25 µg/mL, it binds Recombinant Human Activin RIA/ALK-2 Fc Chimera (Catalog # 637-AR) with an ED50 of 0.15-0.9 µg/mL.

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Background: BMP-7

Bone morphogenetic protein 7 (BMP-7), also known as osteogenic protein 1 (OP-1), is a widely expressed TGF-beta superfamily member with important functions during embryogenesis, in the adult, and in disease (1, 2). Human BMP-7 is synthesized with a 29 amino acid (aa) signal sequence, a 263 aa propeptide, and a 139 aa growth factor domain (3, 4). The growth factor domain of human BMP-7 shares 98% aa sequence identity with mouse and rat BMP-7. The BMP-7 propeptide is cleaved intracellularly but remains in association with the growth factor domain. BMP-7 is subsequently secreted as a tetramer that consists of two propeptides and two disulfide-linked growth factor domains (5, 6). Mature BMP-7 can also form disulfide-linked heterodimers with BMP-2 or BMP-4, complexes that show increased potency and range of activity compared to BMP-7 homodimers (7-9). The presence of the propeptides in the BMP-7 tetramer does not diminish the bioactivity of the growth factor domains (6). Secreted BMP-7 is immobilized in the extracellular matrix as a result of interactions between the propeptide and matrix Fibrillin (5). BMP-7 exerts its biological effects through the type 2 receptors Activin RIIA, Activin RIIB, and BMPR-II and the type 1 receptors Activin RIA, BMPR-IA, and BMPR-IB (2, 6). BMP-7 plays a role in a variety of organ systems. It promotes new bone formation and nephron development (10, 11), inhibits the branching of prostate epithelium (12), and antagonizes epithelial-mesenchymal transition (EMT) (13-15). In pathological conditions, BMP-7 inhibits tumor growth and metastasis (14), ameliorates fibrotic damage in nephritis (13), and promotes neuroregeneration following brain ischemia (16).

References
  1. Carreira, A.C. et al. (2015) J. Dent. Res. 93:335.
  2. Weiskirchen, R. and S.K. Meurer (2013) Front. Biosci. (Landmark Ed.) 18:1407.
  3. Ozkaynak, E. et al. (1990) EMBO J. 9:2085.
  4. Celeste, A.J. et al. (1990) Proc. Natl. Acad. Sci. USA 87:9843.
  5. Gregory, K.E. et al. (2005) J. Biol. Chem. 280:27970.
  6. Sengle, G. et al. (2008) J. Mol. Biol. 381:1025.
  7. Israel, D.I. et al. (1996) Growth Factors 13:291.
  8. Aono, A. et al. (1995) Biochem. Biophys. Res. Commun. 210:670.
  9. Nishimatsu, S. and G.H. Thomsen (1998) Mech. Dev. 74:75.
  10. Sampath, T.K. et al. (1992) J. Biol. Chem. 267:20352.
  11. Kazama, I. et al. (2008) J. Am. Soc. Nephrol. 19:2181.
  12. Grishina, I.B. et al. (2005) Dev. Biol. 288:334.
  13. Zeisberg, M. et al. (2003) Nat. Med. 9:964.
  14. Buijs, J.T. et al. (2007) Am. J. Pathol. 171:1047.
  15. Yu, M.-A. et al. (2009) J. Am. Soc. Nephrol. 20:567.
  16. Chou, J. et al. (2006) J. Neurol. Sci. 240:21.
Long Name
Bone Morphogenetic Protein 7
Entrez Gene IDs
655 (Human); 12162 (Mouse); 85272 (Rat)
Alternate Names
BMP7; BMP-7; bone morphogenetic protein 7; Eptotermin alfa; OP-1; OP-1OP1; Osteogenic protein 1

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