Table 2. Candidate 8 proteins selected as hepatocellular carcinoma associated antigens.

No.	Accession no.	Identified proteins	Score	Unique peptides	Protein functions
1	12025678	alpha-actinin-4	210.42	29	Involved in tight junction assembly in epithelial cells
2	38569423	ATP-citrate synthase isoform 2	94.99	10	Enzyme for the synthesis of cytosolic acetyl-CoA
3	29029559	exportin-2 isoform 1	63.97	10	Export receptor for importin-alpha
4	4507677	endoplasmin precursor	209.5	15	Process and transport of secreted proteins
5	42544159	heat shock protein 105 kDa	100.27	9	Prevent the aggregation of denatured proteins in cells
6	38327039	heat shock 70 kDa protein 4	103.26	10	ATP binding
7	16507237	78 kDa glucose regulated protein precursor	1437.33	39	Facilitate the assembly of protein complexes inside the endoplasmic reticulum
8	440309857	heat shock protein 75 kDa	231.16	12	Chaperone that express an ATPase activity