Figure 4.
Y14 Associates with Chromatin and Accumulates on Chromatin after DNA Damage
(A) Immunoblotting was performed using the whole-cell extract (WCE) and RNase A-treated (+) and non-treated (−) chromatin fractions (CSK) of HeLa cells.
(B) HeLa cells were mock-irradiated (−) or irradiated with 10 Gy followed by recovery for 0, 1, or 2 h. Immunoblotting shows the indicated proteins in the WCE and RNase-treated (CSK + R) and non-treated (CSK) chromatin fractions.
(C) HeLa cells were mock-treated or treated with KU55933 followed by IR irradiation and subsequent recovery. The WCE and RNase-treated chromatin fraction (CSK + R) were subjected to immunoblotting. Bar graph shows the relative level of chromatin-bound Y14 without (lanes 9–12) or after KU55933 treatment (lanes 13–16); lane 9 was set as 1.