Table 3. Function of differentially-expressed identified proteins.

Spot no. a	Proteinb	Geneb	GO accessionc	Biological process / Functionc
1	α-Enolase	ENO1	0006096; 0030308	Glycolysis; Negative regulation of cell growth
2	ATP synthase subunit β	ATP5B	0022904; 0005753	Respiratory electron transport chain; Mitochondrial H+-transporting ATP synthase complex
3, 115	S-Arrestin	SAG	0009586; 0007601	Rhodopsin mediated phototransduction; Visual perception
5	β-Crystallin B2	CRYBB2	0005212; 0007601	Structural constituent of eye lens; Visual perception
7	HSC70	HSPA8	0061077; 0006950	Chaperone-mediated protein folding; Response to stress
12	Stathmin	STMN1	0007019; 0033556; 0030154	Microtubule depolymerization; Intracellular signat transduction; Cell differentiation
13, 18	DDAH1	DDAH1	0016403; 0045429; 0017014	Dimethylargininase activity; Positive regulation of NO biosynthetic process; Protein nitrosylation
20, 237	γ-Enolase	ENO2	0006096; 0001917	Glycolysis; Photoreceptor inner segment
21	GRP78	HSPA5	0030968; 0051087; 0043066	ER unfolded protein response; Chaperone binding; Negative regulation of apoptotic process
31	GAPDH	GAPDH	0006096; 0051402; 0000226	Glycolysis; Neuron apoptotic process; Microtubule cytoskeleton organization
33	PPA1	PPA1	0004427	Inorganic diphosphatase activity
34	Calbindin	CALB1	0005509; 0048167; 0010842	Calcium ion binding; Regulation of synaptic plasticity; Retina layer formation
37	NDPK B	NME2	0004550; 0043066; 0010976	Nucleoside diphosphate kinase activity; Negative regulation of apoptotic process; Positive regulation of neuron projection development
42	COX subunit 5A	COX5A	0022904	Respiratory electron transport chain
91	γ-Synuclein	SNCG	0014059; 0005815	Regulation of dopamine secretion; Microtubule organizing centre

^aRefers to that indicated in Figure 1C.

^bThe protein pertaining to each spot and the name of its encoding gene are indicated.

^cAccession number(s) for each protein and most relevant associations found in the GO database in relation with the scope of this article.