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
E. coli-derived mouse GDF-5/BMP-14 protein Ala376-Arg495, with and without an N-terminal Met
>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Endotoxin Note
<0.10 EU per 1 μg of the protein by the LAL method.
Applications/Dilutions
Dilutions
Bioactivity
Theoretical MW
13.7 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.
Publications
Read Publications using 853-G5 in the following applications:
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.
Buffer
Lyophilized from a 0.2 μm filtered solution in Acetonitrile and TFA with BSA as a carrier protein.
Purity
>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Reconstitution Instructions
Reconstitute at 150 μg/mL in sterile 4 mM HCl containing at least 0.1% human or bovine serum albumin.
Notes
This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.
Alternate Names for Recombinant Mouse GDF-5 Protein
BMP14
BMP-14
Cartilage-derived morphogenetic protein 1
cartilage-derived morphogenetic protein-1
CDMP-1
CDMP1LAP4
GDF5
GDF-5
growth differentiation factor 5
growth/differentiation factor 5
OS5
radotermin
SYNS2
Background
Growth Differentiation Factor-5 (GDF-5; also called BMP-14 and CDMP-1) is a member of the BMP family of TGF-beta superfamily proteins (1, 2). GDF-5, -6, and -7 are a defined subgroup of the BMP family (3). GDF-5 is synthesized as a large precursor protein that consists of an N-terminal 19 amino acid (aa) signal sequence, a 362 aa pro region and a 120 aa C-terminal mature peptide. Mature mouse GDF-5 shares 99% aa sequence identity with both mature human and rat GDF-5. GDF-5 signaling is mediated by formation of a heterodimeric complex consisting of a type 1 (BMPR-IB) and a type II (BMPR-II or Activin RII) serine/threonine kinase receptor which results in the phosphorylation and activation of cytosolic Smad proteins (Smad1, 5, and 8) (4, 5). Similar to other BMP family proteins, GDF-5 signaling is antagonized by Noggin (6). GDF-5 is involved in multiple developmental processes including limb generation, cartilage development, joint formation, bone morphogenesis, cell survival, and neuritogenesis (7-11). Exogenous GDF-5 has been reported to promote chondrogenesis, osteogenesis, and angiogenesis in mesenchymal stem cells in vivo and in vitro (12-14). Inhibition of GDF-5 expression or alteration of its signaling can facilitate the development of osteoarthritis (15-18).
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