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. 2012 Aug 6;198(3):439–456. doi: 10.1083/jcb.201111012

Table 1.

Quantification of the colocalization of DDX6 with Gag in HIV-1–infected cells

Experiment 1 Experiment 2 Experiment 1 and 2 combined Fold colocalization
WT Gag GagΔp2-NC-p1-p6 WT Gag GagΔp2-NC-p1-p6 WT Gag GagΔp2-NC-p1-p6 WT Gag GagΔp2-NC-p1-p6
Membrane length (µm) 111 150 155 166 266 316
Total DDX6 label 643 536 624 679 1,267 1,215
Total targeted Gag clusters 67 499 67 379 134 878
Targeted Gag clusters with DDX6 22 165 19 108 41 273 1.00 (1.00)
Gag clusters at early assembly sites 58 0 56 0 114 0
Gag clusters at early assembly sites with DDX6 41 n/a 36 n/a 77 n/a 2.20a
Gag clusters at late assembly sites 20 0 57 0 77 0
Gag clusters at late assembly sites with DDX6 17 n/a 46 n/a 63 n/a 2.70a

Cells infected with the indicated proviruses were double immunogold labeled for Gag and DDX6. In two independent labeling experiments, the following parameters were quantified: the total length of membrane examined, the total number of independent DDX6 labeling events within 100 nm of the membrane, the total number of independent targeted, early, and late Gag clusters, and the total number of Gag clusters that were associated with DDX6 classified by stage of assembly (i.e., targeted Gag or Gag at early or late assembly sites). Fold colocalization is defined as the number of WT Gag clusters colocalized with DDX6 for each stage of assembly, normalized to Gag-DDX6 colocalization in the GagΔp2-NC-p1-p6 negative control (indicated by parentheses). Fold colocalization (bold) was calculated for each experiment. The fold colocalization averaged from the two experiments is shown and is also graphed with SD in Fig. 5.

a

P < 0.05.