Background:The oligomeric state of ␣-syn in vivo remains unknown. Results: ␣-syn in the CNS and produced by erythrocytes, mammalian cells, and Escherichia coli exists predominantly as a disordered monomer. Conclusion: Native ␣-syn from various sources behaves as unstructured and monomeric. Significance: Stabilizing monomeric ␣-syn, lowering its levels, and/or inhibiting its fibrillization remain viable therapeutic strategies for Parkinson disease.

Taken together, our data show that RMPs have FXI-dependent procoagulant properties and are able to initiate and propagate TG. The anionic surface of RMPs might be the site of FXI-mediated TG amplification and intrinsic tenase and prothrombinase complex assembly.

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