Table 2.

Partial list of Cdt2-associated proteins, identified by mass spectrometric analysis

ProteinNo. of peptides
Damage-specific DNA-binding protein 1 (DDB1)31
Denticleless protein homolog (CDT2)20
Cullin-4B (CUL4B)5
COP9 signalosome complex subunit (COPS4)4
Cullin-4A (CUL4A)3
RING-box protein 1 (RBX1)3
Ubiquitin-conjugating enzyme UBCH63
Ubiquitin-conjugating enzyme UBCH83
Ubiquitin-conjugating enzyme UBCH93