Table S1. List of the major proteins contained in the 1% CHAPSO-DRMs (1% CH-S-5) derived from forebrain SPMs.

Figure S1. Summary of the systematic examination of the synaptic subdomains.

Figure S2. Effects of IAA on the detergent treatment of SPMs and subsequent SDG.

Figure S3. Electron microscopic observation of the fractions obtained by TX-12, OG-DRMs (typically OG-5), OG-12, and CH-12 prepared from the SPMs.

Figure S4. Effects of MβCD treatment on the protein distribution of type II PSD marker proteins in the DRM fractions.

Figure S5. Summary of fractions of interest.

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