Table II. Localization parameters of various proteins in cerebellar PSD. AR, abundance ratio; n₁/N, the proportion of a protein in the region between the surface and 3.69 nm deep; n₂/N, the proportion of a protein in the region between 3.69 and 7.30 nm deep; n₃/N, the proportion of a protein in the region between 7.30 and 10.99 nm deep; I/N, the proportion of a protein in the region deeper than 10.99 nm from the surface.

		Protein	AR1	AR2	AR3	n1/N (%)	n2/N (%)	n3/N (%)	I/N (%)
Peripheral proteins	Evenly distributed Proteins	Actin	1.78	1.76	1.88	47.89	41.70	40.60	0.00a
		CaMKIIα	1.21	0.83	0.55	32.55	19.67	11.88	35.90
		CaMKIIβ	1.03	0.95	0.86	27.71	22.51	18.57	31.21
		EF1α	1.26	0.90	0.90	33.90	21.33	19.44	25.34
	Superficially enriched Proteins	GluR1	2.34	0.08	0.08	62.96	1.90	1.73	33.42
		GluR2	2.02	0.36	0.25	54.35	8.53	5.40	31.72
		GluR6/7	1.81	0.19	0.05	48.70	4.50	1.08	45.72
		NR2A/2B	1.51	0.18	0.05	40.63	4.27	1.08	54.03
		NR2C	2.10	0.09	0.26	56.50	2.13	5.61	35.75
		SAP102	1.58	0.18	0.07	42.51	4.27	1.51	51.71
		Erk2	1.73	0.99	0.58	46.55	23.46	12.53	17.47
		JNK3	1.24	0.36	0.20	33.36	8.53	4.32	53.79
Central proteins		PSD-95	0.20	0.25	0.22	5.38	5.92	4.75	83.94
		α-tubulin	0.07	0.08	0.07	1.88	1.90	1.51	94.71
		β-tubulin	0.19	0.24	0.21	5.11	5.69	4.54	84.67
		βIII-tubulin	0.18	0.15	0.12	4.84	3.55	2.59	89.01
		Protein 4.1	0.11	0.13	0.13	2.96	3.08	2.81	91.15
		Ankyrin	0.62	0.11	0.06	16.68	2.61	1.30	79.42
		Spectrin	0.22	0.21	0.12	5.92	4.98	2.59	86.51
		Tropomyosin	0.08	0.04	0.07	2.15	0.95	1.51	95.39
		nNOS	0.30	0.32	0.22	8.07	7.58	4.75	79.60
		Kalirin	0.18	0.41	0.43	4.84	9.71	9.29	76.16
		HSC70	0.60	0.27	0.41	16.14	6.40	8.85	68.61

^a Negative I/N values.