Mouse GDF-15 Alexa Fluor™ Plus 680-conjugated Antibody

GDF-15 (Growth/differentiation factor 15; also PTGF, PDF, PL-74 and NAG-1) is a 25-30 kDa homodimeric member of the TGF-beta superfamily of proteins. In rodent, GDF-15 is expressed in a diverse population of activated cell types, including hepatocytes, macrophages, Schwann cells, cardiomyocytes, osteoblasts, adipocytes, and epithelium of the small intestine and mammary gland. Functionally, GDF-15 has multiple effects, some tissue specific, including the induction of ACRP30 secretion from fat, an attenuation of the adverse effects of cardiac hypertrophy, and serving as a trophic factor for motor and sensory neurons. Mouse GDF-15 is synthesized as a 273 amino acid (aa) proprecursor that contains a cleavable 26 kDa, 158 aa glycosylated prodomain (aa 31-188) and a 12-14 kDa, 115 aa mature region (aa 189-303). In human, certain cells are noted to secrete an uncleaved 40 kDa proprecursor that, as a disulfide-linked homodimer, would run at about 80 kDa in nonreducing SDS-PAGE. Over aa 189-303, mouse GDF-15 shares 97% and 67% aa identity with rat and human GDF-15, respectively.