Figure 4. CTD acts as an oligomerization domain of DD.

(A) Representative SDS-PAGE strips of DDQ290C mutant after disulfide trapping treatment. Number on the left marks the molecular weight of the markers. The arrow denotes the position of disulfide-linked di-domain on the gel. Unlike CTDQ290C, DDQ290C did not exhibit salt-dependent oligomerization as quantified in (B). The bars represent the average results from three independent experiments.