Reactivity | MuSpecies Glossary |
Applications | Bioactivity |
Format | Carrier-Free |
Details of Functionality | 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 0.2‑1.2 µg/mL. |
Source | Chinese Hamster Ovary cell line, CHO-derived mouse BMP-5 protein Ala315-His452 |
Accession # | |
N-terminal Sequence | Ala315 |
Structure / Form | Disulfide-linked homodimer |
Protein/Peptide Type | Recombinant Proteins |
Gene | Bmp5 |
Purity | >95%, by SDS-PAGE under reducing conditions and visualized by silver stain |
Endotoxin Note | <0.01 EU per 1 μg of the protein by the LAL method. |
Dilutions |
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Theoretical MW | 15.6 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. |
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SDS-PAGE | 19-21 kDa, reducing conditions |
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Publications |
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Storage | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
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Buffer | Lyophilized from a 0.2 μm filtered solution in HCl. |
Purity | >95%, by SDS-PAGE under reducing conditions and visualized by silver stain |
Reconstitution Instructions | Reconstitute at 200 μg/mL in 4 mM HCl. |
Bone Morphogenetic Protein-5 (BMP-5) is one of at least 15 structurally and functionally related BMPs which are members of the transforming growth factor beta (TGF-beta ) superfamily (1). BMP-5 is synthesized as a 452 amino acid (aa) precursor protein that is cleaved at the dibasic cleavage site (RxxR) to release the 20 kDa C-terminal mature protein (2, 3). Mature BMP-5 contains seven conserved cysteine residues involved in formation of the cysteine knot and the single interchain disulfide bond. Biologically active BMP-5 is a disulfide-linked homodimer of the C-terminal mature protein. Mature mouse BMP-5 shares 96% and 99% aa sequence identity with human and rat BMP-5, respectively. Cellular responses to BMP-5 are mediated by the formation of hetero-oligomeric complexes of type I and type II serine/threonine kinase receptors (1). BMP-5 is expressed by chondrocytes in proliferating and hypertrophic zones of bone growth plates (4). It contributes to limb development by promoting proliferation and differentiation of chondrocytes as well as apoptosis of undifferentiated mesoderm (4, 5). Genetic defects in BMP-5 which cause C-terminal truncation or loss of the proteolytic cleavage site result in multiple skeletal abnormalities, including the short ear phenotype in mice (3, 6). BMP-5 is also expressed by ovarian granulosa cells where it functions as an autocrine factor to promote GC proliferation and inhibit their production of progesterone (7). In the nervous system, BMP-5 promotes dendrite outgrowth and dopaminergic neuronal differentiation (8, 9). It is upregulated in oral squamous carcinoma cells and induces the apoptosis of some myeloma cell lines (10, 11).
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