Identification of differentially expressed proteins between human esophageal immortalized and carcinomatous cell lines by two-dimensional electrophoresis and MALDI-TOF-mass spectrometry

Table 1 Protein identified by mass spectrometry

Spot No.	Accession No (NCBInr)	Theoretic Mr	Theoretic pI	Intensity Matched (%)	Length (AA)	expression	Protein name
1	10719660	55549	4.8	10%	494	↑	RNPEP-like protein
2	1916615	75940	8.8	44%	654	↓	ribosomal RNA gene upstream sequence binding transcription factor
3	35053	35493	8.2	27%	331	↓	uracil DNA glycosylase
4	16306978	38618	7.6	47%	339	↓	annexin A2
5	7428977	92928	9.2	44%	832	↓	p300/CBP-associated factor
6	NEW PROTEIN	-	-	-	-	↓	-