What might they be? A paper published October 31 in PLoS Biology proposes that, for α-synuclein, these “mystery densities” comprise polyphosphate. Polyphosphate would fit a pocket in α-synuclein that ...

“They called it a ‘mystery density.'” Now, Jakob and her colleagues have shown that a ubiquitous biological polymer called polyphosphate could be that mystery density. The team reported its findings ...