GDF11 (growth differentiation factor 11; HGNC:4216, NCBI Gene ID 10220) is a human locus mapped to chromosome band 12q13.2 that encodes latent pro-GDF11 cleaved by BMP1/tolloid to mature C-terminal homodimer (109 aa per monomer; 90% identical to Myostatin). GDF11 acts in ACVR2B/ACVR2A-ALK4/5-SMAD2/3 embryonic Hox axial skeletal patterning, neurovascular remodeling & erythroid regulation, together with MSTN (Myostatin 90%-Identical Paralog Gene), FST (Follistatin Neutralizing Protein Gene), and ACVR2B (Activin Receptor Type-2B Gene). Encodes growth differentiation factor 11 (BMP-11), a close structural paralog of myostatin essential for axial skeletal patterning, neurogenesis, and erythropoiesis regulation.
Approved Symbol
GDF11
Chromosomal Locus
12q13.2
Encoded Product
Latent pro-GDF11 cleaved by BMP1/tolloid to mature C-terminal homodimer (109 aa per monomer; 90% identical to Myostatin)
Heterozygous LoF causes vertebral hypersegmentation & rib malformations; sequestered by luspatercept to restore late erythropoiesis in MDS/beta-thalassemia
Gene Structure & Expression
Genomic Organization & Cytogenetic Locus: 3-exon gene on chromosome 12q13.2 encoding a 407-amino-acid preproprotein whose mature 109-residue C-terminal cystine-knot domain shares 90% amino-acid sequence identity (98 of 109 residues) with mature Myostatin (MSTN / GDF8), differing primarily in its N-terminal prodomain and broad tissue expression pattern.
Cellular & Tissue Expression Profile: Unlike skeletal-muscle-restricted MSTN, GDF11 is broadly expressed in the embryonic tailbud and neural epithelium, adult spleen, bone marrow erythroblasts, kidney, dental pulp odontoblasts, olfactory bulb, and cerebral vascular endothelial cells.
Molecular Function & Pathways
Biochemical & Physiological Mechanism: After furin processing and local activation cleavage of its latent propeptide by BMP1/tolloid metalloproteases (and neutralization by follistatin FST or WFIKKN2), mature GDF11 binds ACVR2B and ACVR2A paired with ALK4/ALK5 to phosphorylate SMAD2/3, governing anterior-posterior Hox gene boundaries during vertebral column development and restraining late-stage erythroblast maturation in bone marrow.
Clinical & Therapeutic Significance
Human Genetic Variants & Disease Phenotypes: Heterozygous loss-of-function mutations in human GDF11 cause a multisystem congenital malformation syndrome featuring vertebral hypersegmentation, supernumerary ribs, cleft palate, and neurodevelopmental delay.
Therapeutic & Clinical Pharmacology: Sequestering excess GDF11 and related TGF-beta superfamily ligands in the bone marrow niche using the modified ACVR2B-Fc fusion trap luspatercept (Reblozyl) relieves SMAD2/3-mediated maturation arrest of late-stage erythroid precursors in beta-thalassemia and myelodysplastic syndromes; systemic GDF11 supplementation has also been extensively investigated in heterochronic parabiosis models of cerebrovascular and hippocampal aging.