MBF Bioscience Poll #5: Protein Shape

Scientists at Harvard Medical School found the shape of a certain protein to be different than they initially thought. Reporting on research published this week in Nature, The Scientist says the protein α-synuclein, previously thought to be a single, unfolded protein, may in fact be a helical tetramer. Which neurological disorder is this protein associated with? Select your answer below, then read the article in The Scientist to find out the answer.

[polldaddy poll=5431832]

{Image of α-synuclein protein licensed from Wikimedia Commons, offered to the public domain by EBI.}