Mouse nestin is a 206,994 dalton protein (1864 amino acids) expressed in neural crest cells, CNS neural stems cells, as well as a few non-neural cell types in the embryo, including cells within the pancreatic islets of Langerhans and the limb bud. Nestin is an intermediate filament-associated protein, and contributes to the cytoskeleton.

Image: Staining of human neural progenitor cells grafted into the rat brain, 24 weeks post-op. One is of processes running along the host corpus callosum, one of cells in the hippocampus, weakly counterstained with human nuclear antigen (brown). Nestin concentration was 1:1000, overnight at room temp, visualised using the DAKO vector SG kit.