Mouse Follistatin-related Gene Protein/
FLRG Antibody

Catalog # Availability Size / Price Qty
AF1255
AF1255-SP
Mouse Follistatin-related Gene Protein/FLRG Antibody in Data
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Mouse Follistatin-related Gene Protein/
FLRG Antibody Summary

Species Reactivity
Mouse
Specificity
Detects mouse Follistatin-related Gene Protein/FLRG in direct ELISAs and Western blots. In direct ELISAs and Western blots, approximately 50% cross-reactivity with recombinant human FLRG is observed.
Source
Polyclonal Goat IgG
Purification
Antigen Affinity-purified
Immunogen
Mouse myeloma cell line NS0-derived recombinant mouse Follistatin-related Gene Protein/FLRG
Val24-Val256
Accession # Q9EQC7
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
Endotoxin Level
<0.10 EU per 1 μg of the antibody by the LAL method.
Label
Unconjugated

Applications

Recommended Concentration
Sample
Western Blot
0.1 µg/mL
Recombinant Mouse Follistatin-related Gene Protein/FLRG (Catalog # 1255-F3)
Immunohistochemistry
5-15 µg/mL
Perfusion fixed frozen sections of mouse skin
Neutralization
Measured by its ability to neutralize Follistatin‑related Gene Protein/FLRG inhibition of Activin A-dependent hemoglobin expression in the K562 human chronic myelogenous leukemia cell line. The Neutralization Dose (ND50) is typically 3-12 µg/mL in the presence of 0.1 µg/mL Recombinant Mouse Follistatin‑related Gene Protein/FLRG and 7.5 ng/mL Recombinant Human/Mouse/Rat Activin A.

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Data Example

Neutralization Follistatin-related Gene Protein/FLRG Inhibition of Activin A-induced Hemoglobin Expression and Neutralization by Mouse Follistatin-related Gene Protein/FLRG Antibody. View Larger

Follistatin-related Gene Protein/FLRG Inhibition of Activin A-induced Hemoglobin Expression and Neutralization by Mouse Follistatin-related Gene Protein/FLRG Antibody. Recombinant Mouse Follistatin-related Gene Protein/FLRG (Catalog # 1255-F3) inhibits Recombinant Human/Mouse/Rat Activin A (Catalog # 338-AC) induced hemoglobin expression in the K562 human chronic myelogenous leukemia cell line in a dose-dependent manner (orange line), as measured by the psuedoperoxidase assay. Inhibition of Recombinant Human/Mouse/Rat Activin A (7.5 ng/mL) activity elicited by Recombinant Mouse Follistatin-related Gene Protein/FLRG (0.1 µg/mL) is neutralized (green line) by increasing concentrations of Goat Anti-Mouse Follistatin-related Gene Protein/FLRG Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1255). The ND50is typically 3-12 µg/mL.

Reconstitution Calculator

Reconstitution Calculator

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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Preparation and Storage

Reconstitution
Reconstitute at 0.2 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Availability
Size / Price
Qty
RB01
Shipping
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
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.

Background: Follistatin-related Gene Protein/FLRG

Follistatin-Related Gene Protein (FLRG), also known as follistatin-like 3 (FSTL3) is a glycoprotein belonging to the follistatin-module protein family. Mouse FLRG cDNA encodes a 256 amino acid (aa) residue protein with a putative 23 aa signal peptide, an N-terminal domain, two cysteine-rich follistatin-like domains (FS) and a C‑terminal acidic domain. Compared to follistatin, FLRG lacks the third FS domain found in follistatin. In addition, FLRG also lacks the heparin-binding domain found within the first amino-terminal FS domain of follistatin. Mouse and human FLRG share approximately 83% aa sequence homology. Like follistatin, FLRG has been shown to bind and inhibit the activities of TGF-beta family ligands including activin, BMP-2, -6, -7 and GDF-8/myostatin. While both FLRG and follistatin are located in a wide and overlapping range of adult and fetal tissue, their sites of peak expression differ: FLRG most highly in heart, lung, kidney, placenta and testis, while follistatin is highest in ovary and pituitary. The expression of FLRG is upregulated by TGF-beta and activin signaling through Smad proteins. Although FLRG is a secreted protein in many cell types, it has also been localized to the nuclear compartment in HeLa, 293 and CHO cells (1‑5).

References
  1. Tsuchida, K. et al. (2000) J. Biol. Chem. 275:40778.
  2. Sidis, Y. et al. (2002) Endocrinology 143:1613.
  3. Tortoriello, D.V. et al. (2001) Endocrinology 142:3426.
  4. Hill, J. et al. (2002) J. Biol. Chem. 277:40735.
  5. Bartholin, L. et al. (2001) Oncogene 20:5409.
Entrez Gene IDs
10272 (Human); 83554 (Mouse)
Alternate Names
FLRG; FLRGFSRP; follistatin-like 3 (secreted glycoprotein); Follistatin-like 3; Follistatin-like protein 3; Follistatin-related gene protein; follistatin-related protein 3; FSTL3

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Reconstitution Buffers

Secondary Antibodies

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FLRG Antibody

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Mouse Follistatin-related Gene Protein/FLRG Antibody
By Anonymous on 07/08/2020
Application: ELISA Sample Tested: Recombinant protein Species: Human