TABLE 1.

Relative eIF2α phosphorylation

The levels of eIF2α phosphorylation in Fig. 7 were quantitated using ImageJ (Version 1.43k, NIH). The levels of phosphorylated eIF2α were normalized by the levels of β-actin and expressed as a percentage of phosphorylated eIF2α in control cells. Numbers represent the averages ± S.D. values of three sets of data.

	Control	UV	LNMMA	UV + LNMMA	LNAC	UV + LNAC	l-Arg	UV + l-Arg
A: WT	100	219.7 ± 19.3	57.3 ± 6.7	161.9 ± 4.5	49.5 ± 17.7	183.4 ± 28.6	92.6 ± 23.4	152.6 ± 41.3
B: PERK−/−	100	140.6 ± 11.2	87.5 ± 13.7	125.2 ± 11.1	81.1 ± 15.5	78.4 ± 10.6	67.5 ± 11.4	117.8 ± 3.2
C: CN2−/−	100	96.5 ± 5.0	77.5 ± 1.8	90.0 ± 3.5	48.0 ± 1.3	35.2 ± 8.3	28.1 ± 5.0	23.8 ± 5.6
Column:	1	2	3	4	5	6	7	8