Recombinant Human GDF-3 Protein

R&D Systems, part of Bio-Techne | Catalog # 5754-G3

R&D Systems, part of Bio-Techne
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Carrier Free
5754-G3-010/CF
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With Carrier
5754-G3-010
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Key Product Details

Source

CHO

Accession #

Q9NR23

Conjugate

Unconjugated

Applications

Bioactivity

View all GDF-3 Proteins and Enzymes »

Product Specifications

Source

Chinese Hamster Ovary cell line, CHO-derived human GDF-3 protein
Ala251-Gly364

Purity

>90%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.

Endotoxin Level

<1.0 EU per 1 μg of the protein by the LAL method.

N-terminal Sequence Analysis

Ala251

Predicted Molecular Mass

12.9 kDa

SDS-PAGE

18 kDa, reducing conditions

Activity

Measured by its ability to induce Smad2 phosphorylation in P19 mouse embryonal carcinoma cells. Mazerbourg, S. et al. (2004) Mol. Endocrinol. 18:653.
50 ng/mL of Recombinant Human GDF-3 can effectively induce Smad2 phosphorylation.

Formulation, Preparation and Storage

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.

Carrier: 5754-G3
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 containing at least 0.1% human or bovine serum albumin.
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.
Carrier Free: 5754-G3/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 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: GDF-3

GDF-3 (previously called Vgr-2) is a TGF-beta superfamily member belonging to the growth/differentiation factor family (1, 2). GDF-3 is expressed in undifferentiated embryonic stem (ES) cells, white adipose tissue and the brain (2-4). The 366 amino acid (aa) mouse GDF-3 contains a 22 aa signal sequence, a 230 aa propeptide and a 114 aa mature protein that contains one potential N-glycosylation site. The mature region contains a cysteine-knot structure that is conserved throughout family members. However, it lacks the fourth cysteine which is responsible for the formation of an inter-molecular disulfide bond, so GDF-3 may exist as a non-covalent homodimer (2, 5). Mature human GDF-3 shares 83%, 83% aa sequence identity with mouse and rat GDF-3. Most of GDF-3 is present as the uncleaved prepro form (6). The uncleaved and the mature forms both appear to have activity, but that activity may differ (5-8). All forms can oppose BMPs. In ES cells, inhibition of BMP2 signaling by GDF-3 maintains pluripotency (5, 7). GDF-3 also influences early cell fate decisions; for example, deletion of mouse GDF-3 produces defects in the anterior visceral endoderm of the pre-gastrulation embryo (6-8). GDF-3 cooperates with GDF-1 in embryogenesis, and the mature protein has nodal-like activity (8, 9). Although GDF family members signal through BMP receptors (ALK1, 2, 3 and 6), which activate Smads 1, 5 and 8, GDF-3 signaling through ALK4 and ALK7, which activate Smads 2 and 3, has also been reported (9, 10). In adipocytes, GDF-3 is induced by a high fat diet, promoting adipogenesis and obesity (3, 10, 11).

References

  1. Levine, A.J. and A.H. Brivanlou (2006) Cell Cycle 5:1069.
  2. Caricasole, A.A. et al. (1998) Oncogene 16:95.
  3. Wang, W. et al. (2004) Biochem. Biophys. Res. Comm. 321:1024.
  4. Hexige, S. et al. (2005) Neurosci. Lett. 389:83.
  5. Levine, A.J. et al. (2009) Dev. Biol. 325:43.
  6. Levine, A.J. and A.H. Brivanlou (2005) Development 133:209.
  7. Peerani, R. et al. (2007) EMBO J. 26:4744.
  8. Chen, C. et al. (2006) Development 133:319.
  9. Andersson, O. et al. (2007) Dev. Biol. 311:500.
  10. Andersson, O. et al. (2008) Proc. Natl. Acad. Sci. USA 105:7252.
  11. Shen, J.J. et al. (2009) Mol. Endocrinol. 23:113.

Long Name

Growth Differentiation Factor 3

Alternate Names

GDF3, Vgr-2

Entrez Gene IDs

9573 (Human); 14562 (Mouse)

Gene Symbol

GDF3

UniProt

Q9NR23 (Human)

Additional GDF-3 Products

Product Documents for Recombinant Human GDF-3 Protein

Product Datasheets

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Note: Certificate of Analysis not available for kit components.

Download SDS 5754-G3 (with carrier)
Download SDS 5754-G3/CF (carrier free)

Product Specific Notices for Recombinant Human GDF-3 Protein

For research use only

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