GMF-beta is a brain-specific protein that belongs to the actin-binding proteins ADF structural family. GMF-beta appears to play a role in the differentiation, maintenance, and regeneration of the nervous system. It also supports the progression of certain auto immune diseases, possibly through its ability to induce the production and secretion of various pro inflammatory cytokines. Recombinant Human GMF-beta is a 16.5 kDa globular protein containing 141 amino acid residues, including one intramolecular disulfide bond.