Growth differentiation factor-3 (GDF3), also known as Vg-related gene 2 (Vgr-2) is protein that in humans is encoded by the GDF3 gene. GDF3 belongs to the transforming growth factor beta (TGF-β) superfamily. It has high similarity to other TGF-β superfamily members including Vg1 (found in frogs) and GDF1. GDF3 is a bi-functional protein that has some intrinsic activity and also modulate other TGF-β superfamily members, e.g. potentiates the activity of NODAL. It may also inhibit other TGF-β superfamily members (i.e. BMPs), thus regulating the balance between different modes of TGF-beta signaling. It has been shown to negatively and positively control differentiation of embryonic stem cells in mice and humans. This molecule plays a role in mesoderm and definitive endoderm formation during the pre-gastrulation stages of development. Expression of GDF3 occurs in ossifying bone during embryonic development and in the brain, thymus, spleen, bone marrow and adipose tissue of adults.
Background References
1. Masurkar N et al. Novel Cardiokine GDF3 Predicts Adverse Fibrotic Remodeling After Myocardial Infarction. Circulation. 2023 Feb
2. Wang L et al. GDF3 Protects Mice against Sepsis-Induced Cardiac Dysfunction and Mortality by Suppression of Macrophage Pro-Inflammatory Phenotype. Cells. 2020 Jan
Western blot analysis of GDF3 on different lysates with Rabbit anti-GDF3 antibody (HA722339) at 1/1,000 dilution.
Lane 1: HepG2 cell lysate (20 µg/Lane) Lane 2: HeLa cell lysate (20 µg/Lane) Lane 3: Human liver tissue lysate (40 µg/Lane) Lane 4: Mouse kidney tissue lysate (40 µg/Lane) Lane 5: Mouse liver tissue lysate (40 µg/Lane) Lane 6: Rat kidney tissue lysate (40 µg/Lane) Lane 7: Rat testis tissue lysate (40 µg/Lane)
Predicted band size: 41 kDa Observed band size: 41/16 kDa
Exposure time: 46 seconds; ECL: K1802;
4-20% SDS-PAGE gel.
Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (HA722339) at 1/1,000 dilution was used in 5% NFDM/TBST at 4℃ overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1/50,000 dilution was used for 1 hour at room temperature.
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