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).
Mouse Follistatin-related Gene Protein/FLRG Antibody
R&D Systems | Catalog # MAB1255
Key Product Details
Species Reactivity
Validated:
Mouse
Cited:
Human
Applications
Validated:
Western Blot
Cited:
ELISA Development
Label
Unconjugated
Antibody Source
Monoclonal Rat IgG2A Clone # 210725
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Product Specifications
Immunogen
Mouse myeloma cell line NS0-derived recombinant mouse FLRG
Val24-Val256
Accession # Q9EQC7
Val24-Val256
Accession # Q9EQC7
Specificity
Detects mouse FLRG in direct ELISAs and Western blots. In direct ELISAs and Western blots, this antibody shows 50-100% cross-reactivity with recombinant human FLRG.
Clonality
Monoclonal
Host
Rat
Isotype
IgG2A
Applications for Mouse Follistatin-related Gene Protein/FLRG Antibody
Application
Recommended Usage
Western Blot
1 µg/mL
Sample: Recombinant Mouse Follistatin-related Gene Protein/FLRG (Catalog # 1255-F3)
Sample: Recombinant Mouse Follistatin-related Gene Protein/FLRG (Catalog # 1255-F3)
Reviewed Applications
Read 1 review rated 5 using MAB1255 in the following applications:
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.
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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
Background: Follistatin-related Gene Protein/FLRG
References
- Tsuchida, K. et al. (2000) J. Biol. Chem. 275:40778.
- Sidis, Y. et al. (2002) Endocrinology 143:1613.
- Tortoriello, D.V. et al. (2001) Endocrinology 142:3426.
- Hill, J. et al. (2002) J. Biol. Chem. 277:40735.
- Bartholin, L. et al. (2001) Oncogene 20:5409.
Alternate Names
Follistatin-like 3, FSTL3
Gene Symbol
FSTL3
UniProt
Additional Follistatin-related Gene Protein/FLRG Products
Product Documents for Mouse Follistatin-related Gene Protein/FLRG Antibody
Certificate of Analysis
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Note: Certificate of Analysis not available for kit components.
Product Specific Notices for Mouse Follistatin-related Gene Protein/FLRG Antibody
For research use only
Related Research Areas
Citations for Mouse Follistatin-related Gene Protein/FLRG Antibody
Customer Reviews for Mouse Follistatin-related Gene Protein/FLRG Antibody (1)
5 out of 5
1 Customer Rating
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Application: ELISASample Tested: Recombinant proteinSpecies: HumanVerified Customer | Posted 07/08/2020
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Protocols
Find general support by application which include: protocols, troubleshooting, illustrated assays, videos and webinars.
- Cellular Response to Hypoxia Protocols
- R&D Systems Quality Control Western Blot Protocol
- Troubleshooting Guide: Western Blot Figures
- Western Blot Conditions
- Western Blot Protocol
- Western Blot Protocol for Cell Lysates
- Western Blot Troubleshooting
- Western Blot Troubleshooting Guide
- View all Protocols, Troubleshooting, Illustrated assays and Webinars
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