Human Brain-Derived Neurotrophic Factor (BDGF) is a potent neurotrophic factor that supports the growth and survivability of nerve and glial cells. BDNF protein is a 27.0 kDa dimer, formed by two identical 119 amino acid subunits held together by strong hydrophobic interactions. The antibody recognizes the mature form of BDNF at 14 kDa.