Key Product Details

Species Reactivity

Validated:

Mouse

Cited:

Mouse

Applications

Validated:

Western Blot

Cited:

Western Blot

Label

Unconjugated

Antibody Source

Monoclonal Rat IgG2B Clone # 84231
View all GDF-8/Myostatin Primary Antibodies »

Product Specifications

Immunogen

Mouse myeloma cell line NS0-derived recombinant mouse GDF-8
Asn25-Ser376
Accession # O08689

Specificity

Detects mouse GDF-8 propeptide in direct ELISAs and Western blots. In direct ELISAs, no cross-reactivity with recombinant mouse (rm) GDF‑1 propeptide, rmGDF-3 propeptide, rmGDF-5, or rmGDF-6 is observed.

Clonality

Monoclonal

Host

Rat

Isotype

IgG2B

Applications for Mouse GDF‑8/Myostatin Propeptide Antibody

Application
Recommended Usage

Western Blot

1 µg/mL
Sample: Recombinant Mouse GDF‑8/Myostatin Propeptide (Catalog # 1539-PG)

Formulation, Preparation, and Storage

Purification

Protein A or G purified from hybridoma culture supernatant

Reconstitution

Reconstitute at 0.5 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store 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.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Calculators

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Background: GDF-8/Myostatin

Growth Differentiation Factor 8 (GDF-8), also known as Myostatin, is a secreted TGF-beta superfamily protein that is expressed specifically in developing and adult skeletal muscle. It controls myoblast proliferation and is a potent negative regulator of skeletal muscle mass (1‑3). Mouse GDF-8 is synthesized as a 376 amino acid (aa) preproprotein that consists of a 24 aa signal peptide, a 243 aa propeptide, and a 109 aa mature protein (2). Within the propeptide, mouse GDF-8 shares 96% and 99% aa sequence identity with human and rat GDF-8, respectively. GDF-8 is secreted as a preproprotein that is cleaved by BMP-1 family proteases to separate the 35‑40 kDa propeptide from the 12 kDa bioactive mature protein (4‑6). This results in a latent complex containing a disulfide-linked dimer of the mature protein and two noncovalently-associated molecules of the propeptide (2, 6). The GDF-8 propeptide functions as an inhibitor of mature GDF-8, and GDF-8 activity can also be inhibited through association with Follistatin, FLRG, Decorin, or GASP-1 (6‑11). The uncleaved GDF-8 proprotein binds Latent TGF-beta bp3 which can sequester it in the extracellular matrix and prevent the proteolytic cleavage of the propeptide (12). GDF-8 binds to the type II Activin receptor Activin RIIB which then associates with the type I receptors Activin RIB/ALK-4 or TGF-beta RI/ALK-5 to induce signaling (13). GDF-8 additionally inhibits adipogenic differentiation of mesenchymal stem cells and preadipocytes (14). Genetic deletion of GDF-8 or in vivo administration of the GDF-8 propeptide induces muscle hypertrophy as well as enhanced glucose utilization and insulin sensitivity and a reduction in overall fat mass (15, 16).

References

  1. McPherron, A.C. (2010) Immunol. Endocr. Metab. Agents Med. Chem. 10:217.
  2. McPherron, A.C. et al. (1997) Nature 387:83.
  3. Zimmers, T.A. et al. (2002) Science 296:1486.
  4. Wolfman, N.M. et al. (2003) Proc. Natl. Acad. Sci. 100:15842.
  5. McFarlane, C. et al. (2005) Dev. Biol. 283:58.
  6. Lee, S.J. et al. (2001) Proc. Natl. Acad. Sci. 98:9306.
  7. Thies, R.S. et al. (2001) Growth Factors 18:251.
  8. Amthor, H. et al. (2004) Dev. Biol. 270:19.
  9. Hill, J.J. et al. (2002) J. Biol. Chem. 277:40735.
  10. Miura, T. et al. (2006) Biochem. Biophys. Res. Commun. 340:675.
  11. Hill, J.J. et al. (2003) Molecular Endocrinology 17:1144.
  12. Anderson, S.B. et al. (2008) J. Biol. Chem. 283:7027.
  13. Rebbapragada, A. et al. (2003) Mol. Cell. Biol. 23:7230.
  14. Guo, W. et al. (2008) J. Biol. Chem. 283:9136.
  15. Matsakas, A. et al. (2009) Neuromuscul. Disord. 19:489.
  16. Guo, T. et al. (2009) PloS ONE 4:e4937.

Long Name

Growth Differentiation Factor 8

Alternate Names

GDF8, MSLHP, MSTN, Myostatin

Entrez Gene IDs

2660 (Human); 17700 (Mouse)

Gene Symbol

MSTN

UniProt

O08689

Additional GDF-8/Myostatin Products

Product Documents for Mouse GDF‑8/Myostatin Propeptide Antibody

Certificate of Analysis

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Product Specific Notices for Mouse GDF‑8/Myostatin Propeptide Antibody

For research use only

Citations for Mouse GDF‑8/Myostatin Propeptide Antibody

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