Table 1.

Summary of proteins identified by peptide mass fingerprint and peptide sequencing

Band (molecular weight)	Proteins, abbreviation, and SwissProt accession number	Number of sequenced peptides
1 (110 kDa)	- Poly (ADP-ribose) polymerase 1 (PARP-1; P09874)	3 (m)
2 (75 kDa)	- ATP-dependent helicase II (Ku80; P13010)	1 (m)
3 (65 kDa)	- ATP-dependent helicase II (Ku70; P12956)	2 (m)
4 (60 kDa)	- PARP-1 - Ku70 - Keratin	2 (LC) 2 (LC)
5 (50 kDa)	- PARP-1 - Keratin	6 (LC)
6 (35 kDa)	- DNA-(apurinic or apyrimidine site) lyase (APEX1; P27695) - Glyceraldehyde-3-phosphate hydrogenase (GAPDH; P04406)	9 (LC) 3 (LC)
7 (25 kDa)	- PARP-1	9 (LC)

Labels "m" refer to verification by manual ESI-MS/MS and "LC" to HPLC-MS/MS, respectively.