Increased Phospho-Keratin 8 Isoforms in Colorectal Tumors Associated with EGFR Pathway Activation and Reduced Apoptosis

Table 1

Protein identification.

Spot	ID^a	Acc no.^b	pI^c	MW (Da)^d	Xcorr^e	No. of peptides^f	% Sequence coverage^g
1	K8	P05787	5.38	53672	270.2	19	39.75
2	K8	P05787	5.50	53672	230.3	16	39.13
3	K8	P05787	5.70	53672	210.3	15	34.78
4	K18	P05783	5.21	48029	100.3	9	30.39
5	K18	P05783	5.30	48029	120.2	8	31.40
6	K19	P08727	4.90	44065	180.3	14	53.50

^aProtein identified.
^bSwissProt accession number.
^cCalculated isoelectric point.
^dCalculated molecular weight, Daltons.
^eXcorr: significance score.
^fNumber of peptides sequenced.
^g% of the full length protein sequence covered by identified peptides.