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Recombinant Human BMP-8a Protein, CF

Catalog # 1073-BP/CF | R&D Systems, Inc. a Bio-Techne Brand
Catalog #
Size / Price

Key Product Details

Accession #


E. coli

Structure / Form

Disulfide-linked homodimer




Binding Activity

Product Specifications


E. coli-derived human BMP-8a protein
Ala264-His402 & Val265-His402


>95%, by SDS-PAGE under reducing conditions and visualized by silver stain.

Endotoxin Level

<0.10 EU per 1 μg of the protein by the LAL method.

N-terminal Sequence Analysis

Ala264 & Val265

Predicted Molecular Mass

15.8 kDa (monomer)


Measured by its binding ability in a functional ELISA.
When Recombinant Human BMP‑8a is present at 1 μg/mL, the concentration of recombinant human BMPR‑1A Fc Chimera that produces 50% of the optimal binding response is approximately 1.5‑6 μg/mL.

Formulation, Preparation and Storage

Formulation Lyophilized from a 0.2 μm filtered solution in Acetonitrile and TFA.
Reconstitution Reconstitute at 100 μg/mL in sterile 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.

Background: BMP-8a

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 were originally identified as protein regulators of cartilage and bone formation. They have since been shown to be involved in embryogenesis and morphogenesis of various tissues and organs (2). BMPs play roles in regulating growth, differentiation, chemotaxis, and apoptosis of various cell types, including mesenchymal, epithelial, hematopoetic, and neuronal cells.

There exist two highly related and closely linked genes, designated BMP-8a and -8b in mice and humans. For humans, the protein products of these two genes share 98% amino acid (aa) sequence identity in their pro- and mature regions. However in the mouse, the two proteins share 89% and 76% aa sequence homology in their pro- and mature regions, respectively (3). Mature human BMP-8a shares 91% and 70% aa sequence identity with mouse BMP-8a and -8b, respectively. Human BMP‑8a is synthesized as a large precursor protein that is cleaved at a dibasic cleavage site (RTPR) between aa residues 263 and 264 to release a 139 aa carboxy‑terminal domain. Expression patterns of the BMP-8 genes indicate that they regulate aspects of cell proliferation and/or differentiation during spermatogenesis and formation of the placenta (3). BMP-8 is also highly expressed in osteosarcomas (4).


  1. Ozkaynak, E. et al. (1992) J. Biol. Chem. 267:25220.
  2. Canalis, E. et al. (2003) Endocrine Rev. 24:218.
  3. Zhao, G-Q. et al. (1996) Mech. Dev. 57:159.
  4. Sulzbacher, I. et al. (2002) J. Clin. Pathol. 55:381.

Long Name

Bone Morphogenetic Protein 8a

Alternate Names

Op2, Osteogenic Protein 2

Entrez Gene IDs

353500 (Human); 12163 (Mouse)

Gene Symbol



Product Documents for Recombinant Human BMP-8a Protein, CF

Certificate of Analysis

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Note: Certificate of Analysis not available for kit components.

Product Specific Notices for Recombinant Human BMP-8a Protein, CF

For research use only

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