Table 1

		Molecular mass (Da)
Peptide	Fragment^a	Found^b	Calculated^c
syn1-99	57-72	1658.8	1659.8
	33-50	1930.3	1931.2
	31-50	2116.4	2116.4
	73-99	2604.2	2604.9
	57-99	4247.3	4246.7
	1-99	9892.6	9891.4
syn1-52	1-4*	792.4	791.8
	43-52	1053.7	1052.6
	42-52	1140.8	1139.6
	5-18	1388.0	1387.8
	1-17*	2090.4	2091.5
	31-50	2117.0	2116.5
	1-18*	2162.5	2162.5
	20-52	3385.8	3385.8
	19-52	3456.8	3456.9
	5-42	3792.6	3792.4
	9-52	4397.9	4398.0
	5-52	4827.6	4827.6
	1-49ox*	5323.9	5324.1
	1-50*	5445.6	5445.3
	1-52*	5601.4	5601.4
syn57-102	67-78	1000.9	1001.1
	93-102	1118.7	1119.3
	91-102	1290.8	1291.5
	66-80	1355.7	1356.5
	90-102	1361.8	1362.6
	65-80	1468.9	1470.6
	57-71*	1971.2	1971.2
	60-80	2053.6	2056.3
	57-72*	2071.5	2072.3
	80-102	2276.0	2276.6
	79-102	2404.4	2404.7
	78-102	2476.3	2475.8
	76-102	2645.8	2646.0
	57-79*	2699.3	2699.0
	61-89	2713.0	2714.0
	75-102	2747.1	2747.1
	73-102	2903.6	2903.3
	57-81*	2928.4	2928.3
	57-89*	3612.3	3613.0
	57-90*	3684.5	3684.1
	57-102*	4957.5	4957.6
	57-102ox*	4973.22	4973.6
syn108-140	108-140	3787.8	3787.9

^aPeptides obtained by proteolysis by proteinase K, purified by RP-HPLC (Figure 2).
^bExperimental molecular masses determined by ESI-MS.
^cMolecular masses calculated from the amino acid sequence.

Table 1: Molecular masses of fragments obtained by proteolysis of α-syn by proteinase K.