Recombinant Human BMP-8a (CHO-expressed) Protein, CF

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Product Details

Summary
Reactivity HuSpecies Glossary
Applications Bioactivity
Format
Carrier-Free

Order Details

Recombinant Human BMP-8a (CHO-expressed) Protein, CF Summary

Details of Functionality
Measured by its ability to inhibit the cell growth of DU145 human prostate carcinoma cells. Miyazaki, H. et al. (2004) Oncogene 23:9326. The ED 50 for this effect is 0.5-5 μg/mL.
Source
Chinese Hamster Ovary cell line, CHO-derived human BMP-8a protein Ala264-His402
Accession #
N-terminal Sequence
Ala264
Structure / Form
Disulfide-linked homodimer by SDS-PAGE under non-reducing conditions
Protein/Peptide Type
Recombinant Proteins
Gene
BMP8B
Purity
>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Endotoxin Note
<0.01 EU per 1 μg of the protein by the LAL method.

Applications/Dilutions

Theoretical MW
15.7 kDa (monomer).
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.
SDS-PAGE
19 kDa, reducing conditions

Packaging, Storage & Formulations

Storage
    12 months from date of receipt, ≤ -20 degreesC as supplied. 1 month, 2 to 8 degreesC under sterile conditions after reconstitution. 3 months, ≤ -20 degreesC under sterile conditions after reconstitution.
Buffer
Lyophilized from a 0.2 μm filtered solution in HCl.
Purity
>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Reconstitution Instructions
Reconstitute at 250 μg/mL in 4 mM HCl.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Recombinant Human BMP-8a (CHO-expressed) Protein, CF

  • BMP-8a
  • bone morphogenetic protein 8a
  • Op2
  • Osteogenic Protein 2

Background

BMP-8, also known as osteogenic protein 2 (OP-2), was first isolated from a hippocampal library in a screen to identify relatives of BMP-7/OP-1 (1). BMPs are a family of structurally and functionally related proteins and represent a subfamily of the transforming growth factor beta (TGF-beta ) superfamily. BMPs are involved in a wide range of processes including embryogenesis, tissue morphogenesis, cell differentiation and migration, and tumorigenesis. Cellular responses to BMPs are mediated by hetero-oligomeric complexes of type I and type II serine/threonine kinase receptors (2 - 4). BMP-8a and BMP-8b, produced from separate genes, share 98% aa sequence identity in human but only 74% in mouse within the mature regions. Human BMP-8a is synthesized as a 402 aa precursor protein that is cleaved between Arg263 and Ala264 to release the C-terminal mature protein. Mature human BMP-8a shares 90% and 68% aa sequence identity with mouse mature BMP-8a and -8b, respectively. BMP-8a is expressed during pregnancy in the deciduum and trophoblast cells, by inner root sheath cells of developing hair follicles, and by the epididymis and spermatids (5 - 7). In the mouse it cooperates with BMP-7 in the maintenance of spermatogenesis but is not required for the initiation of spermatogenesis (7, 8). BMP-8b, in contrast, is required for both the initiation and maintenance of spermatogenesis (9). BMP-8a is induced during osteoblast differentiation at the onset of mineralization and during the osteogenic phase of bone repair in osteoblasts and osteocytes (10 - 12). BMP-8a/b is also highly expressed in osteosarcomas (13).
  1. Ozkaynak, E. et al. (1992) J. Biol. Chem. 267:25220.
  2. Chen, D. et al. (2004) Growth Factors 22:233.
  3. Bragdon, B. et al. (2010) Cell Signal. Oct 16 epub.
  4. Singh, A. and R.J. Morris (2010) Cytokine Growth Factor Rev. 21:299.
  5. Zhao, G.-Q. and B.L. Hogan (1996) Mech. Dev. 57:159.
  6. Ying, Y. and G.-Q. Zhao (2000) Biol. Reprod. 63:1781.
  7. Zhao, G.-Q. et al. (1998) Development 125:1103.
  8. Zhao, G.-Q. et al. (2001) Dev. Biol. 240:212.
  9. Zhao, G.-Q. et al. (1998) Genes Dev. 10:1657.
  10. van der Horst, G. et al. (2002) Bone 31:661.
  11. Cho, T.-J. et al. (2002) J. Bone Miner. Res. 17:513.
  12. Paic, F. et al. (2009) Bone 45:682.
  13. Sulzbacher, I. et al. (2002) J. Clin. Pathol. 55:381.

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Bioinformatics

Gene Symbol BMP8B
Entrez
Uniprot